• 中文核心期刊
  • 中国科技核心期刊
  • ISSN 1007-6336
  • CN 21-1168/X

MessageBoard

Dear readers, authors and reviewers, if you have any questions about the contribution, review, editing and publication of this magazine, you can add comments on this page. We'll get back to you as soon as possible. Thank you for your support!

UserName
Email
Phone
Title
Content
Code
Display Method:
Articles in press have been peer-reviewed and accepted, which are not yet assigned to volumes /issues, but are citable by Digital Object Identifier (DOI).
Display Method:
Review of the effects of low-tide rainfall-runoff on the particle transport in intertidal zone
Dai-Di HUANG, Si CHEN
 doi: 10.12111/j.mes.20190179
[Abstract](0) [FullText HTML](0) [PDF 728KB](0)
Abstract:
Low tide rain drops directly suspend surfacial particulates of intertidal environment, and the following runoff facilitate the mobilization of substantially amounts of particles to the water column. These processes have been proposed as "hot moments". In order to demonstrate the influences of rainfall-runoff on the particle cycling and its ecological effects, rainfall related research papers between 1978 and 2018 were reviewed in this paper. These studies suggest that raindrops at low-tide destroy and discharge viscous surface sediments, and then the subsequent runoff transfers the resuspended sediments downhill. These processes lead to 2-100 times increase in suspended sediment concentrations of tidal creek water column, which is substantially higher than that of shallow water waves and tidal currents. Meanwhile, concentrations of organic matter and heavy metals correspond to the temporal dynamic of the suspended particulate matter. Finally, suspended particles driven by rainfall-runoff have great chances to export to the coastal ocean by tidal current and hereby contribute to the “Outwelling” processes. This issue is particularly relevant because global climate models highlight an intensification of the hydrologic cycle in many coastal areas. Therefore, the potential for low-tide rainfall to influence intertidal zone biogeochemical processes can be expected to increase, and therefore, a more comprehensive understanding of rainfall-runoff effects on intertidal landscape material cycling is needed.
Acute toxicity and species sensitivity distribution of p-chloroaniline, 1,2-dichloroethane, butyl benzyl phthalate and 1-phenylethyl alcohol on two marine bivalves
Yu-han LI, Jing-jing MIAO, Shou-xiang WEI, Lu-qing PAN, Yu-fei LIN, Jiang-yue WU
 doi: 10.12111/j.mes.20190152
[Abstract](2) [FullText HTML](0) [PDF 697KB](0)
Abstract:
The acute toxicities and species sensitivity distributions (SSD) of four hazardous chemicals, p-chloroaniline, 1,2-dichloroethane, butyl benzyl phthalate and 1-phenylethyl alcohol, on Zhikong scallop Chlamys farreri and manila clam Ruditapes philippinarumwere investigated in the present study. The results showed that the 96 h lethal concentration 50% (LC50) values of p-chloroaniline, 1,2-dichloroethane, butylbenzyl phthalate and 1-phenylethanol to C. farreri were 36.18, >2070.00, 123.16 and 180.89 mg/L, meanwhile,96 h-LC50 values to R. philippinarum were 122.61, >2070.00, >2010.00 and 639.31 mg/L, respectively, C. farreri were more sensitive to four dangerous chemicals than R. philippinarum. Based on the SSD models, the short-term toxicity thresholds of butyl phthalate, p-chloroaniline and 1,2-dichloroethane were 0.64, 2.04 and 37.20 mg/L. The research would provide a theoretical basis for ecological risk assessment and pollution control of four hazardous chemicals in the marine environment.
Spatial-temporal variations and eutrophication analysis of nutrients in Meishan bay in 2018
Mei ZHANG, Shuo-qian MAO, Qiao-ting LOU, Qian-wen SHAO, Fan LI, Zhong-zhou LIN
 doi: 10.12111/j.mes.20190210
[Abstract](53) [FullText HTML](69) [PDF 897KB](3)
Abstract:
The spatial-temporal variations and eutrophication of water quality were analyzed based on the monitoring data from Meishan waterway in winter, spring, summer and autumn of 2018. The results showed that NO3-N was the main component of DIN which accounted for 68.245%~98.214%. The average concentrations of DIN and PO4-P in winter, spring and autumn were higher than those in summer, but the SiO3-Si in summer was on the contrary. The concentrations of nutrients were significantly negatively with Chlorophyll a in winter, summer and autumn except summer, indicated that the contents of nutrients were not only affected by phytoplankton consumption, but also by exogenous input and release of environmental media. In addition to summer, the average contents of PO4-P in the Mangchang Reach were higher than those in the bay, and PO4-P contents were decreased from the North dyke to the South dyke. The contents of SiO3-Si in Mangchang Reach were lower than those in the bay in spring and summer, but the autumn and winter were opposite. The assessment by comprehensive pollution index method showed that the Mangchang Reach was mainly moderately polluted and the bay was mainly mildly polluted both in spring and autumn, while opposite in summer. Potential eutrophication evaluation results showed that the water quality of Mangchang Reach possessed moderate restriction of potential eutrophication in phosphorus and oligotrophy, while the bay with potential eutrophication of phosphorus limitation and phosphorus restriction on eutrophication.
Development of regional SST algorithm for FY-3C/VIRR data in the seas around China
Quan-jun HE, Jie-chun WANG
Accepted Manuscript  doi: 10.12111/j.mes.20190107
[Abstract](115) [FullText HTML](116) [PDF 826KB](2)
Abstract:
Previous validation results showed that there was large bias in the operational sea surface temperature (SST) products from the visible and infrared radiometer (VIRR) onboard the Fengyun-3C (FY-3C) polar-orbiting meteorological satellite released by the national satellite meteorological center (NSMC). According to the setting of thermal infrared channels of FY-3C/VIRR, the regional algorithms to estimate daytime and nighttime SST in the seas around China were developed based on the non-linear SST (NLSST) and triple window NLSST (TNLSST). The clear-sky sea matchup data was generated from the bright temperature of satellite thermal infrared channels and in situ data, and the coefficients of NLSST and TNLSST were acquired by the regression fitting method. The regional SST algorithm was validated using the independent matchup data, the results showed that the bias and standard deviation (SD) were 0.082 ℃ and 0.633 ℃ in daytime, -0.007 ℃ and 0.557 ℃ in nighttime. Also, taking the optimum interpolation SST as reference value, the regional SST was compared with the operational products from the NSMC, the results demonstrated the bias and SD were decreased from 0.047 ℃ and 0.743 ℃ to 0.031 ℃ and 0.641 ℃ for daytime data, and from 0.184 ℃ and 0.708 ℃ to 0.034 ℃ and 0.556 ℃ for nighttime data, respectively.
Analysis of spatiotemporal dynamic changes of the north Jiangsu coastline in the past 40 Years
Hong-xing CUI, Chi-sheng WANG, Hong YANG, Zhong-wen HU, Chun-feng WANG
Accepted Manuscript  doi: 10.12111/j.mes.20190137
[Abstract](136) [FullText HTML](140) [PDF 1424KB](4)
Abstract:
Coastline plays an important role in indicating sea-level rise, coastal erosion, harbor accretion, wetland ecological resources and coastal environment. Using remote sensing (RS) and geographic information system (GIS) technology to obtain the coastline data of the northern Jiangsu coast in the period of 1978-2018, the coastline length change, coastline change rate and coastline type change were analyzed, and the estuaries were taken as the boundary point to analyze the coastline change characteristics. The results show that: (1) In the past 40 years, the total length of coastline in the study area has a decreasing trend, and the change of coastline type is more obvious. The artificial coastline and the natural coastline have a trend of increasing and decreasing with time, respectively. (2) During the period of 1978-2018, the rate of coastline advancing to sea is much higher than coastline advancing to land. (3) From 1978 to 1988, the coastline between Sheyang estuary and Xinyang port has the most obvious propulsion speed, which is mainly pushed to the sea in the way of accretion, and the average end point rate (EPR) of the coastline is 281.4 m/a; From 1988 to 1998, the coastline between Xinyang port and Doulong port has the most obvious propulsion speed, which is mainly pushed to the sea in the way of accretion with the average EPR is 535.5 m/a; During 1998-2008, the coastline accretion rate between Doulong port and Dafeng port is the most obvious, mainly by artificial reclamation to the sea with an average EPR of 502.1 m/a; During 2008-2018, the coastline accretion rate between Liangduo estuary and Fangtang estuary is the most obvious, mainly by artificial reclamation to the sea area with an average EPR of 347.7 m/a.
Dynamic change of utilization and environmental pressure assessment of development in the sea area near Changxing Island
Ting-ting LIANG, Li-na KE, Quan-ming WANG
Accepted Manuscript  doi: 10.12111/j.mes.20190098
[Abstract](431) [FullText HTML](257) [PDF 972KB](2)
Abstract:
This study to Changxing Island sea area as the research area, and the high resolution remote sensing images of 2005 and 2015 are used as data sources, and the information of reclamation distribution, area and utilization type in Changxing Island and its adjacent sea area is extracted and analyzed by means of GIS technology. The dynamic degree of utilization type of sea area, utilization transfer matrix of sea area, utilization structure information entropy of sea area and sea area development resource environmental pressure index are calculated. The comprehensive index of development and utilization intensity is used to analyze the dynamic changes of the development and utilization of the sea area near Changxing Island from 2005 to 2015, so as to evaluate its development resource environment pressure intensity. The results show that: (1) in 2005-2015, the sea expansion rate of harbors near Changxing Island was the fastest, with the dynamic attitude as high as 11.09%, followed by the unutilized expansion rate, while the sea area for salt industry showed a negative growth with a dynamic degree of -0.16%; (2) In the past 10 years, the main types of reclamation changed from sea area to reclamation, harbor and unused type; (3) During the study period, the information entropy increased from 0.96 in 2005 to 1.40 in 2015. The balance degree of sea area utilization structure was strengthened, and the structure of sea area utilization tended to be diversified and balanced; (4) In 2005 and 2015, 56.14% and 62.97% of the sea areas with moderate or higher environmental pressures on resources development in Changxing Island, 80.7% of the area with the change of the environmental pressure index greater than zero, and the intensity of the environmental pressure is gradually increasing
Application of coastal reservoir technology to improve regional natural and water supply environment: a case study of the Murray-Darling Basin in Australia
Kun-cheng ZHANG, Pei-fang GUO, Mao-chong SHI, Shu-qing YANG, Hong-yuan SHI, Shao-yang CHEN
Accepted Manuscript  doi: 10.12111/j.mes.20190255
[Abstract](338) [FullText HTML](316) [PDF 914KB](2)
Abstract:
Australia's Murray-Darling Basin is extremely important for its economic, resource, environmental and ecological values. The two most important rivers- River Murray and River Darling crosses through the basin. In recent years, due to the “millennial drought”, a series of ecological and environmental problems such as rising salinity, large fish death events and soil acidification phenomenon have caused a shortage of freshwater resources in the downstream Adelaide region. This paper draws lessons from the failure of the design of the downstream Alexander Lake’s reservoir, and attempts to improve the regional natural environment and water supply ability through the application of multi-purpose coastal reservoir technology. So that the Adelaide region has sufficient high-quality drinking water supply to alleviate the phenomenon of river dryness in the region. Trying to improve regional natural environment and water supply environment by applying multi-purpose coastal reservoir technology. In addition, through the research of coastal reservoir technology, it provides suggestions for the improvement of natural environment and water supply ability in China's coastal areas, and realizes the effective management of China's freshwater resources.
Extraction and purification of okadaic acid (OA) and dinophysis toxin-1 (DTX1) in the dinoflagellate Protocentrum Lima
Wei JIN, Jing-yuan YAO, Wen-bo CHEN, Chang-bao GONG, Bao-lin JIA, Shi-feng SUI, Shao-shu FENG, Lei HAN, Yu-bo LIANG, Song-hui LV
Accepted Manuscript  doi: 10.12111/j.mes.20190149
[Abstract](329) [FullText HTML](270) [PDF 954KB](3)
Abstract:
Marine dinoflagellate Prorocentrum lima producing diarrhetic shellfish poison were mass cultured and crushed by ultrasonic, followed by extracting with methanol for okadaic acid (OA) and dinophysis toxin-1(DTX1). OA and DTX1 with high purity were obtained by a preparative high performance liquid chromatographic (HPLC) method after enrichment and purification with macroporous adsorption resin HP20, which was used for the enrichment of extracellular toxin secreted in the sea water. The two compounds were identified by nuclear magnetic resonance hydrogen spectrum (1H-NMR) and high-resolution mass spectrometry (HRMS). The purity of OA and DTX1 was identified by quantitative nuclear magnetic to be 99.39% and 99.26% respectively, meeting the requirements for preparation of standard material.
Distribution characteristics of nitrifiers and denitrifiers in sediments from Changjiang Estuary and adjacent sea area
Xin-quan ZHANG, Xiao-ya WU, Yu ZHEN, Yang-yang CHEN
 doi: 10.12111/j.mes.20190099
[Abstract](340) [FullText HTML](228) [PDF 1019KB](1)
Abstract:
The biomass distribution characteristics of total bacteria, aerobic ammonium-oxidizing and denitrifying bacteria in sediments from Changjiang Estuary and adjacent sea area were analyzed using DAPI staining and fluorescent quantitative PCR technology. For the vertical distribution, denitrifying bacteria (DB) biomass was much higher than that of aerobic ammonium-oxidizing bacteria (AOB) at the same depth, but there were similar trends between their vertical biomass. The intense mixing of sediments was suitable for AOB coexisting with DB. Sediment depth was the most significant influencing factor to the vertical biomass profiles of total bacteria, AOB and DB. The increasing depth affected AOB more easily than total bacteria and DB. For the horizontal distribution, total bacterial biomass gradually decreased from inshore to offshore, which was significantly impacted by the nitrite concentration. There were high biomass areas of AOB and DB in the sea area off Changjiang Estuary and the south sea area of Zhoushan Archipelago, respectively, and dissolved oxygen concentration and total nitrogen content were important influencing factors to their horizontal distributions. This study provided support for thoroughly understanding the role of bacteria in nitrogen cycles in estuarine and coastal sea area.
Purification evaluation of DIN and DIP in different types of wetlands in Jiaozhou bay and Daya bay
Man-hua LUO, Hai-long LI, Kai XIAO, Hao HUANG
 doi: 10.12111/j.mes.20190213
[Abstract](269) [FullText HTML](278) [PDF 1361KB](3)
Abstract:
In order to evaluate the purification capacities of DIN and DIP in different types of wetlands in two typical semi-closed bays (Jiaozhou bay and Daya bay) in China, a quantitative method of seawater-groundwater interactions was used to calculate the purification capacities. Results showed that: there are four types of wetland in Jiaozhou bay, i.e., sandy beaches, mud flat, estuarine intertidal zone and tidal marsh, and their purification capacities on DIN sort as follows: mud flat>sandy beaches>estuarine intertidal zone> tidal marsh and DIP sort as follows: sandy beaches>mud flat>estuarine intertidal zone> tidal marsh. The purification rate ranged from 2.11×105 mol/d to 4.23×105 mol/d for DIN and from 4.29×102 mol/d to 8.22×102 mol/d for DIP, respectively. The estimated nitrogen removal rate due to human activities such as land reclamation was 3.1~5.4 t/d. In contrast, there are three types of wetlands such as mangrove swamp, sandy beaches and silt-sandy beaches in Daya bay. The DIN purification capacities of different types of wetlands in Daya bay sort as follows: mangrove swamp>sandy beaches>silt-sandy beaches, with an average of 4.22×107 mol/d. Due to the area decrease of mangrove swamp and sandy wetlands in Daya bay, the decreased nitrogen removal rate was estimated to be 1.33×102 t/d and 0.81 t/d, respectively.
Advances in analytical technique research for dissolved amino acids in seawater
Lei YUAN, Chun-chao ZHANG, Yan-ru LV
 doi: 10.12111/j.mes.20190172
[Abstract](286) [FullText HTML](240) [PDF 645KB](1)
Abstract:
Amino acids, as one of the most important readily bioavailable components in marine organic nitrogen pool, have attracted more and more attention with the deepening understanding of the biogeochemical cycle of organic nitrogen in the marine environment. Studies on composition and bioavailability of amino acids are of great significance to understand the migration and transformation of organic nitrogen in the ocean. In this paper, the advances in analytical methods for dissolved amino acids in seawater, such as spectrophotometry and fluorospectrophotometry and separation methods, such as Ion Exchange Chromatography (IEC) and High-performance Liquid Chromatography (HPLC) are detailed explained. And the most widely used precolumn derivatives-reversed-phase liquid chromatography-fluorescence detection method is more detailed reviewed. Moreover, the latest techniques such as Mass Spectrometry (MS), Compound-Specific Isotope Analysis (CSIA) and Capillary Electrophoresis (CE) are also mentioned, as well as their prospected applications in oceanography.
Construction and application of on-line monitoring system for dissolved oxygen in multi-water layer of marine ranching
Long-wen FU, Zhi-qiang DU, Ge GAO, Xi-yan SUN, Ling-xin CHEN
 doi: 10.12111/j.mes.20190159
[Abstract](345) [FullText HTML](244) [PDF 1381KB](1)
Abstract:
In order to monitoring on the dissolved oxygen (DO) status of different water layers in marine ranching in the real-time, online and continuous, this paper designs a multi-layer marine dissolved oxygen online monitoring system. It integrates an optical dissolved oxygen sensor developed independently and designed the chain-type DO section measurement structure. The data acquisition and control system is designed based on STM32 single-chip. And the wireless transmission module communicating with the remote control center is used to complete the real-time update and visual display of the data, which realize the expression of the remote control command to the monitoring system. The results show that the drift of DO probe can be controlled within 3%, and the whole system displayed the good stability, high reliability. It is convenient for users to check the current dissolved oxygen status of seawater and view historical data. In 2016 to 2018, the system has been applied to the east ocean Yunxi marine ranching in Yantai, Shandong. The observation data shows that DO and temperature show similar laws. The concentration of DO in the surface water is high with small variation range. The variation range of DO in the middle sea water is obviously higher than that in the surface layer and the bottom layer. And the DO in the bottom sea water shows a continuous downward trend without obvious vertical mixing. During the observation period, the bottom sea water of marine ranching appeared hypoxia for more than 18 days in 2016 and 2017, and the time series change trend of the test data is consistent with the weather change, which provide early warning and forecast for the aquaculture enterprises of marine ranching and reduce the economic loss caused by hypoxia disaster.
Physiological and ecological response of marine coccolithophores to global climate change: a review
Yuan-yuan FENG, Mao-nian XI
Accepted Manuscript  doi: 10.12111/j.mes.20190231
[Abstract](279) [FullText HTML](426) [PDF 639KB](2)
Abstract:
Coccolithophores are one of the marine phytoplankton functional groups, playing important roles in the marine carbon cycle through both photosynthetic and calcification processes. The oceans are considered as important sink of the anthropogenic CO2. The rapid increase in atmospheric pCO2 since the industrial revolution has caused the trend of global climate change, including ocean acidification, global warming and changes in the nutrient concentrations and irradiance in the mixed layer. These complex changes in environmental conditions will affect the physiology and ecology of marine phytoplankton simultaneously, which is the so-call environmental multiple stress. The response of coccolithophores to changes in multiple environmental drivers will also have complex feedback to marine carbon cycle. This review mainly overviews the current understanding of the effects of both single environmental driver (CO2 concentration, temperature, and nutrient and irradiance levels) and the interaction of multiple environmental drivers on the physiology of coccolithophores and its implications on the marine biogeochemistry. Based on these recent research advances, the future research perspectives are also summarized.
Temporal and spatial distribution characteristics of nutrients and eutrophication assessment in Guanghai bay
Bao-shi LI, Cheng-xuan LI, Yu-xiu JIN, Peng JI, Xiao-long ZHAO, Shuai HE
 doi: 10.12111/j.mes.20190171
[Abstract](315) [FullText HTML](271) [PDF 1029KB](6)
Abstract:
The spatial and temporal distributions of environmental ecological parameters (including salinity, nutrients and chlorophyll a) were investigated in the Guanghai bay during two cruises in October 2014 (autumn) and April 2015 (spring). The state of eutrophication in this region were evaluated by eutrophication index (EI) and nutrient quality state index (NQI). The relationships among nutrients, the N/P ratio, phytoplankton biomass and population structure were discussed in order to provide an improved understanding of the influence of environmental factors on coastal eutrophication. The spatial distributions of nutrients displayed a declining trend from the coastal estuary toward the marine environment in spring, which was primarily affected by the sewage discharge of Datong river. In autumn, the concentrations of nutrients were higher in the northwestern regions, compared with those in the southeastern area. These findings suggest an extremely dynamic cycling of nutrients that responds rapidly to changes in the phytoplankton biomass and community structure. Eutrophication occurred in Guanghai bay during spring and autumn, with a decreasing gradient from inshore to offshore sites. Eutrophication situation worsened obviously from spring to autumn.
Heavy metal contents of mangrove surface soils affected by the social and economic development in Hainan Island
Zi-yin HUANG, Dong-sheng GUAN, Gang WANG
Accepted Manuscript  doi: 10.12111/j.mes.20190153
[Abstract](391) [FullText HTML](273) [PDF 628KB](6)
Abstract:
Heavy metal elements are persistent pollutants which are easy to be accumulated in the environment. Those poisonous pollutions will cause serious threats to ecological security and human health because of their long-term accumulation in environment, especially in the surface sediments. To find out the effect of social and economic development on the mangrove wetlands, correlation analysis was used to address how heavy metal contents in mangrove wetlands were affected by surrounding land use/cover types, social and economic development indicators and pollutant emission of different cities in Hainan Island. The result showed there were significantly positive correlations between Zn, Ni, Hg, and Co, indicating that those heavy metal elements may come from the same or similar sources. Furthermore, it was found that both Zn and Cu contents increased with the increasing of construction land area; Cu、Zn、Hg are significantly positively correlated with GDP, while Cu and Zn are significantly positively correlated with permanent population. All mentioned above results of correlation analysis generally showed those heavy metal elements may come from urban construction and vehicle exhaust.
Study on the chemical forms of phosphorus and their vertical distributions in core sediments from Zhejiang offshore
Ming-mei AN, Tao-sheng HAN, Yi-ming WANG, Ai-rong ZHENG
 doi: 10.12111/j.mes.20190154
[Abstract](412) [FullText HTML](281) [PDF 1257KB](3)
Abstract:
Total phosphorus of three columnar sediments in Zhejiang offshore was measured. A sequential extraction method (SEDEX) was adopted to measure phosphorus of 5 forms in the columnar sediments. 210Pb method was used to measure the deposition rate. Age-dating results were combined with some climatic or human activity events to analyze the vertical distribution characteristics of total phosphorus, inorganic phosphorus and phosphorus of 5 forms, and degradation of organic phosphorous. The research results indicated that vertical distribution characteristics of phosphorus in various forms at different stations were different, relating to the sedimentary environment and diagenesis. Organic phosphorous in the core sediments showed the rapidly declining trends in the surface layer or sub-surface, indicating that degradation of organic phosphorous mainly occurred in the surficial aerobic zone and sub-surface.
Study on particulate mercury and dissolved mercury in adjacent waters of the Yangtze River Estuary in summer and autumn
Wen ZHENG, Ru-hai Liu, Shuai YUAN, Xi-xi CHONG, Dan YI, Yan WANG
 doi: 10.12111/j.mes.20190189
[Abstract](300) [FullText HTML](247) [PDF 1115KB](1)
Abstract:
The distribution trend and influence of particulate mercury (PHg) and dissolved mercury (DHg) in adjacent waters of the Yangtze River Estuary were studied by the Science 3 scientific research vessel in July and October 2018, respectively. The results showed that PHg and DHg had a large variance in the surface seawater, and the difference was obvious in different seasons. In summer, PHg in surface water decreased from nearshore to the open seas. In the autumn period, this trend was not obvious. DHg accounted for a larger proportion in this sea area. DHg was higher in autumn than that in summer, and the surface water was higher than the bottom water. In summer, the particle-water partition coefficients in surface and the bottom water increased from nearshore to the open seas; PHg correlated with TSM significantly in the surface and bottom water and PHg/TSM increased exponentially with salinity (R2=0.3365, p<0.01). The main reason for the change in the temporal and spatial distribution of surface PHg was the decrease of Changjiang diluted water and more windy weather. The distribution characteristics of DHg were controlled by small particle diameter and more marine organic particles. While the higher concentration of DHg at 30°N reflected the effects of river transport and surrounding pollution discharge.
Remote sensing study on aquaculture changes in Sansha bay
Ming WEI, Hong JIANG, Yun-zhi CHEN, Huan-ge LI
 doi: 10.12111/j.mes.20190117
[Abstract](282) [FullText HTML](335) [PDF 1509KB](1)
Abstract:
This paper studies the spatial distribution of aquaculture areas in Sansha bay and the impact of aquaculture area changes on water quality in the area, so as to provide scientific basis for water quality environmental protection and sustainable development of aquaculture industry in Sansha bay. It carries out the classified extraction and statistics of remote sensing images of Sansha bay in 2007-2019 by cage aquaculture area and algae aquaculture area, and analyzes the dynamic changes of the area and distribution of two kinds of aquaculture. Besides, it predicts the water quality data of Sansha bay in 2019 by time series analysis model, and conducts the correlation analysis between aquaculture and water quality based on the dynamic changes of water quality and aquaculture area from 2007 to 2019. The results show that the area of aquaculture appeared an overall growth trend from 2007 to 2019. Algae aquaculture area increased rapidly from 2007 to 2014, basically covering the whole Sansha bay area, while it remained stable from 2014 to 2019. And cage aquaculture area continued to increase from 2007 to 2019, which gradually expanded to the waters near Dongan island and Dongchongkou. The change trend of water quality and aquaculture area in 2007-2018 is basically the same, so qualitative and quantitative analysis has verified that there is a certain correlation between water quality and aquaculture area in Sansha bay, and it is further verified by water quality prediction in 2019.
Distribution character and pollution status of petroleum hydrocarbon in sediment in Liaodong Bay inshore sea areas
Chao-kui HU, Nan LI, Jin-hao WU, Hai-bo ZHAO, Zhao-hui WANG
Accepted Manuscript  doi: 10.12111/j.mes.20190118
[Abstract](376) [FullText HTML](289) [PDF 742KB](3)
Abstract:
The temporal and spatial distribution of petroleum hydrocarbon of surface sediment of offshore marine areas in Liaodong Bay was examined based on the concentrations retrieved from marine environmental monitoring data from 2015 to 2017. The source and degree of pollution were also analyzed and discussed. The results show that the concentration of the petroleum hydrocarbon of surface sediment in Liaodong Bay from 2015 to 2017 was in the range of 1.5×10−6~2790.0×10−6, with a median value of 62.7×10−6. The total median values of petroleum hydrocarbon of surface sediment of marine functional zones in Liaodong Bay (the top three) were: Port shipping area>Reserve area> Agricultural and fishery areas while the sequence of total over standard rate of petroleum hydrocarbon in sediment stations of marine functional zones in Liaodong Bay (the top four) was Industrial and urban sea area> Reserve area>Agricultural and fishery areas> Port shipping area from 2015 to 2017. The results indicate that the petroleum hydrocarbon mainly comes from areas with more frequent production activities, such as port and maritime areas, coastal areas for industrial and urban use, reservation areas, agricultural and fishery areas, etc.
The historical records research of four kinds of marine disasters in China from B.C.48 to 1949
Shan LIU, Ying-hua WANG, Xian-wu SHI, Ning JIA, Yu-xi SUN, Qiang LIU
 doi: 10.12111/j.mes.20190135
[Abstract](610) [FullText HTML](520) [PDF 772KB](8)
Abstract:
By organazing and arranging several kinds of historical books data, this paper collects 4,515 notes that recorded marine disaster in China from B.C.48 to 1949. Marine disasters in this paper contain storm surge, tsunami, ocean wave, and sea ice. Using disaster science, oceanography, geography, statistics and informatics theory, from the perspective of historical-document-study, spatial and temporal distribution characteristics of the marine disaster in China from B.C.48 to 1949 are summarized and analyzed on the basis of those historical notes. The results show that Storm Surge Disaster(SSD)is the most serious marine disaster in all dynasties. 1,244 SSD events have occurred from B.C.48 to 1949, and 52 events caused more than 10,000 deaths, most of which occurred in the southeast coastal areas of Jiangsu and Zhejiang province during the Ming and Qing dynasties. This paper is a supplement to the current research on marine disaster prevention and reduction in the cosatal China, at the same time, it is also the backtracking of ecological civilization construction and ecological protection in the time dimension.
Comparative study on the development of different islands (groups) in China based on TOPSIS
Kun-cheng ZHANG, Pei-fang GUO, Mao-chong SHI, Hong-yuan SHI, Shu-qing YANG
 doi: 10.12111/j.mes.20190082
[Abstract](703) [FullText HTML](405) [PDF 868KB](6)
Abstract:
Under the background of the marine economic powerful nation strategy, the development of islands is restricted by their special natural conditions, which is relatively backward compared with their neighboring land. Most China's islands are scattered in different areas, and play a role as an important " bridgehead” in the process of human discovering the ocean, therefore, the coastal provinces and cities have been always seriously concerning about the development of islands. The evaluation model of island group is constructed with the evaluation index that considering four aspects: resource supply capacity, ecological environment carrying capacity, economic development capacity, and the social support capacity of the island group. The Changdao island group, Nanao island group, and Weizhou island group are selected to conduct the development evaluation, according to their location, connectivity with land, climate type, and availability of data. The evaluation results of above island groups are compared and analyzed. The evaluation results indicate the development of Changdao island group is superior to the Nanao and Weizhou island groups. Referring the analysis, the infrastructure conditions, the tourism development stage, the effective protection of ecological environment, and the attention from local government are the major factors of determining the development of island area.
The diversity of bacterial communities in marine sediments after oil spill
Wen-xiang XIA, Li LIU, Ming-yuan ZHANG, Meng-meng MENG, Ying-ying ZHAO, Jin-cheng Li
 doi: 10.12111/j.mes.20190009
[Abstract](661) [FullText HTML](370) [PDF 504KB](2)
Abstract:
Marine sediments are not only the reservoir of pollutants, but also the source of overlying water. There are high bacterial richness and diversity in marine sediments, and the heterogeneity of sediments lead to bacterial community of oil spill response diversely. The structure and diversity of bacterial communities can reflect the degree of oil pollution and the level of biodegradation to a certain extent, and there is a relationship between the relative abundance of hydrocarbon degradation genes and the level of pollution. In this paper, the diversity of bacterial communities in marine sediments after oil spill was reviewed, and the variation of bacterial communities in the supratidal zone, intertidal zone, subtidal zone and deep-sea sediments after oil spill was emphatically analyzed.
Impacts of human activities on the changes of wetland landscape types in the Yellow River Delta during the past 40 years
Ke-xin CHEN, Pi-fu CONG, Wei LEI
 doi: 10.12111/j.mes.20190002
[Abstract](685) [FullText HTML](437) [PDF 1215KB](10)
Abstract:
In order to understand the impact of human activities on the changes of wetland landscape types in the Yellow River Delta wetland and to identify the dominant human factors, this paper uses Landsat 1976, 1986, 1996, 2006, 2016 satellite data and uses landscape transfer matrix, and human activity intensity model to quantitatively monitor the wetland landscape types under the influence of human activities in the Yellow River Delta during the 40 years and assess the impact of human activities by partitioning in the study area. The results are as follows: (1) Three kinds of conversions that are greatly affected by human disturbance: natural wetlands to human-made wetlands and non-wetlands are the most, and non-wetlands to human-made wetlands are medium, and human-made wetlands to non-wetlands are the least. (2) The proportion of landscape types that have been affected by human disturbances in the study area has been increasing, and the impact rate of human activities has increased from 16.77% in the first 10 years to 52.94% in the last 10 years. Farmland farming was the main human activity factor affecting the change of landscape types from 1976 to 2006. Between 2006 and 2016, the distribution of changes in natural wetlands area affected by various human activities is relatively balanced, and the proportion of transfer to reservoirs ponds is 34%. Farmland reclamation was the main influence in 1976-2016. (3) The human activity intensity model is applicable to the calculation of human activity intensity in the Yellow River Delta wetland. Between 1976 and 2016, severe disturbances were mainly concentrated in coastal areas, undisturbed and interference weakening areas were mainly concentrated in nature reserves. The results are in good agreement with the actual field survey results. The results of the study can provide a useful reference for the relevant departments to protect, manage and rehabilitate wetlands in the Yellow River Delta.
Estimate adaptive management and obstacle factors of marine eco-economic system: A case study of Shandong province
Dong-jing CHEN, Yu LIU, Yu-jie SI
 doi: 10.12111/j.mes.20190047
[Abstract](475) [FullText HTML](565) [PDF 812KB](1)
Abstract:
In the process of implementing adaptive management, management performance evaluation is an important step of adaptive management evaluation. According to the "pressure-state-response" idea, 33 indicators are selected to construct the adaptive management performance measurement model of marine eco-economic system. The results of a case study of Shandong province show that the adaptability management level of the marine eco-economic system has been obviously improved in the province from 2006 to 2015, but the adaptive management degree of the three sub-items of pressure, state and response and their changing trends are obviously different. The results of the obstacle diagnosis show that the factors that affect the performance improvement of the marine eco-economic system mainly come from the pressure layer, namely the interference of the exogenous factors to the marine ecological environment can’t be ignored. In order to realize the sustainable development of the marine eco-economic system, we must continuously improve the adaptive management system of the marine eco-economic system, continue to innovate adaptive management system, guide all stakeholders to strengthen adaptive learning, continuously increase various inputs and improve the level of adaptive management under the leadership of the government.
Community characteristics of zooplankton sampled with WP2 net in the Yellow Sea in spring
Fa-can LEI, Yu-yuan LI, Guang-xing LIU, Yun-yun ZHUANG, Hong-ju CHEN
Accepted Manuscript  doi: 10.12111/j.mes.20190066
[Abstract](580) [FullText HTML](495) [PDF 910KB](0)
Abstract:
Community structure of zooplankton in the Yellow Sea was characterized based on the samples collected with a WP-2 plankton net (200-μm mesh) in May, 2012. Species composition, abundance, dominant species of zooplankton were analyzed together with the environmental data. A total of 65 zooplankton species and 27 larvae taxa were identified in the study area. The mean abundance of zooplankton (excluding Noctiluca scintillans) is 8109.5±7585.0 ind/m3, which was higher than that of zooplankton collected with coarse-meshed net (505-μm mesh). The dominant species consisted mainly of the small zooplankton, including N. scintilllans, Oithona similis, Centropages abdominalis, Paracalanus parvus, Acartia clausi, Calanus sinicus and copepod nauplii. CLUSTER analyses grouped the zooplankton in the study area into 4 communities, including the East China Sea inshore mixed water community, the neritic community, the Yellow Sea central community and the North Yellow Sea community. The clustering was in concert with the result of previous results.
Current situation and management countermeasures of coastline protection and utilization in China
Liang LIU, Qi YUE, Hou-jun WANG
Accepted Manuscript  doi: 10.12111/j.mes.20190052
[Abstract](934) [FullText HTML](823) [PDF 760KB](28)
Abstract:
Coastal line is not only the space carrier of marine economic development in coastal areas, but also an important platform to protect the marine environment and maintain the ecological balance of coastal zone. Generally speaking, it can be divided into natural shoreline and artificial shoreline. Since the 1990s, with the rapid economic and social development of China's coastal areas, the intensity of offshore sea area and coastline development has been increasing. By 2018, the proportion of artificial coastline in China has exceeded 75%, and that of individual provinces and cities has exceeded 90%. Overload development and utilization of the coastline has brought about environmental problems, and also caused difficulties in the protection and management of the coastline. It is suggested that work should be carried out from the perspectives of establishing coastline management system, establishing responsibility supervision mechanism of natural coastline retention rate, implementing coastline rehabilitation and implementing coastline supervision and management and so on, so as to promote the protection and utilization of coastline resources in China in the new era.
Effects of petroleum hydrocarbons on ingestion and metabolism of Calanus sinicus
xiao-ju ZHANG, ming-ru YU, long DING
Accepted Manuscript  doi: 10.12111/j.mes.20190048
[Abstract](447) [FullText HTML](355) [PDF 703KB](1)
Abstract:
The effects of petroleum hydrocarbons on ingestion and metabolism of Calanus sinicus were studied. The results showed that petroleum hydrocarbons had significant effects on filtering rate, ingestion rate, respiratory rate and ammonium excretion rate of C. sinicus (p<0.05). Ammonium excretion rate was significantly different from every concentration groups (p<0.05), which was the most sensitive to the changes of petroleum hydrocarbon concentration. There were no significant differences in filtering rate, ingestion rate, respiratory rate and ammonium excretion rate between 0.051 mg/L, 0.103 mg/L, 0.215 mg/L concentration groups and the control group (p>0.05) after 14 days of recovering culture. The filtering rate and ingestion rate of 0.43 mg/L and 0.86 mg/L concentration groups were significantly differences from the control group (p<0.05), and no significant differences in respiratory rate and ammonium excretion rate (p>0.05). In the control group and low concentration groups, protein metabolism was dominant metabolism styles, the O:N ratio increased when exposed to 0.43 mg/L and 0.86 mg/L concentration groups, carbohydrates or fats began to participate in metabolism. After 14 days of recovering culture, the metabolic was still based on protein in all concentration groups.
Research on compensation for ecological loss caused by marine engineering construction
Ling-yan YANG, Shu-xiu LIANG, Zhao-chen SUN
Accepted Manuscript  doi: 10.12111/j.mes.20190042
[Abstract](630) [FullText HTML](436) [PDF 627KB](6)
Abstract:
This paper introduces the application of compensation method for ecological loss caused by Marine engineering construction from two aspects: financial compensation and ecological restoration compensation. Two methods of ecological loss compensation fund accounting are discussed in the part of financial compensation, based on the ecosystem service function and based on the ecological restoration respectively. Ecological restoration compensation mainly introduces two different ways: the in situ ecological restoration compensation of structural forms with ecological effects from the engineering structure itself, and the heterotopic ecological restoration compensation of constructing new habitats in other places for ecological reconstruction. Last the compensation scale of different marine engineering is estimated based on HEA.
Remote sensing based application research of nuclear power plant thermal plume monitoring with different spatial resolution imagery
Xiang WANG, Xiu SU, Xin-xin WANG, Lin WANG, Yan-long CHEN, Jian-hua ZHAO, Jin XU
Accepted Manuscript  doi: 10.12111/j.mes.20190036
[Abstract](463) [FullText HTML](383) [PDF 965KB](1)
Abstract:
Nuclear power industry developed rapidly in China in recent years and the environmental problems that followed have attracted much attention. In this study, three kinds of data source, MODIS thermal data, HJ-1B infrared scanner data and Landsat-8 thermal infrared data, which were imaged at simultaneous phase and different spatial resolution, were used to calculate sea surface temperature in the waters near the Hongyanhe nuclear power plant. Based on the corrected gulf average temperature method, the thermal plume distribution of nuclear power plants with three kinds of data source was obtained. Analysis shows that: Landsat-8 data achieves the highest accuracy and more details in thermal plume distribution. For restriction of the "mixed pixel" effect caused by low spatial resolution, HJ-1B and MODIS data have a bad performance. According to the differences in hydrogeological conditions between different monitoring areas, it’s wise to use satellite data with different time phase and spatial resolution Comprehensively. It can be foreseen that unmanned aerial vehicles with infrared payload is expected to be a powerful complement to satellite remote sensing monitoring methods.
Water mixing in the northern slope of the South China Sea as traced by 226Ra and 228Ra
Lin LANG, Jian-an LIU, Qiang-qiang ZHONG, Jin-zhou DU
Accepted Manuscript  doi: 10.12111/j.mes.20190025
[Abstract](496) [FullText HTML](496) [PDF 1110KB](0)
Abstract:
Radium isotopes were important tracers for water transport and mixing processes. We investigated the distribution of 226Ra and 228Ra in the northern slope of the South China Sea (SCS) during spring based on a cruise conducted in March 2017. The results proved that the activities of 226Ra in surface water varied from 6.4 to 10.7 dpm/100 L, and those of 228Ra varied from 4.6 to 26.0 dpm/100 L. The 226Ra and 228Ra activities, temperature and salinity in the surface seawater reflected that the surface water in the northern SCS was mainly composed of two water masses, namely the SCS water and the Kuroshio branch water. The proportion ranges of the two water masses in study area was 0.13~1.05 and 0.87~−0.05, respectively. The activity ranges of 226Ra and 228Ra in sea water column were 5.9~29.7 dpm/100 L and 2.6~6.5 dpm/100 L. Using a steady-state hypothesis and the two-box model of 226Ra and 228Ra, the residence time of seawater below 1500 m in the northern SCS was estimated to be approximately 14~61 years.
Study on beaches quality evaluation in Dapeng peninsula, Shenzhen
Xin-ling LONG, Pi-mao CHEN, Xiao-wei DUAN, Jia-rong CHEN, Xiao WEI, Jing SHI
Accepted Manuscript  doi: 10.12111/j.mes.20190016
[Abstract](556) [FullText HTML](371) [PDF 736KB](2)
Abstract:
Beaches are an important support for the development of coastal tourism and recreational fisheries. Beach quality evaluation is an important basis for the protection and rational development and utilization of beaches. Based on the characteristics of the resources environment of Dapeng peninsula beaches in Shenzhen, a suitable quality evaluation system was constructed for Dapeng peninsula referred to main domestic and overseas quality evaluation systems of beaches. The quality evaluation system covers three elements: nature, society and humanity. To be specific, this system consists of 2 aspects, 5 categories, 9 sub-categories and 33 factors that reflected the characteristics and functions of the beaches. Analytic hierarchy process (AHP) was applied to determining the indicators weight. There are five grades given by the beach quality evaluation system which were excellent beaches (≥80), good beaches (70~80), passing beaches (60~70), medium beaches (50~60) and poor beaches (<50). The results showed that the average score of beaches quality was 68.62 in resources and environment. The quality of most beaches resources and environment was pass level. The average score of beaches tourism service quality was 46.88. The quality of beaches tourism service was poor. The quality was evaluated as 3 excellent beaches, 11 good beaches, 15 passing beaches, 20 medium beaches and 4 poor beaches. The comprehensive quality evaluation level of the beach was passing. According to the evaluation of beaches quality, beaches development and management suggestion was proposed.
Research and application of river runoff calculation method based on on-line monitoring—a case study in Liaohe river
Yong-Jun YANG, Zhan-ming HU, Zhong-sheng LIN, Yu WANG
Accepted Manuscript  doi: 10.12111/j.mes.20190007
[Abstract](520) [FullText HTML](426) [PDF 697KB](6)
Abstract:
With the rise of river inflow on-line monitoring technology, this paper studies the main technical links of on-line monitoring of inflow into the sea based on the principle and steps of on-line monitoring technology. We suggest a comprehensive and all-round streamlined calculation scheme of rivers runoff into the seas. The method was applied to calculate the example in Liao River inflow. This study provides support for the popularization of on-line monitoring technology of inflow into the sea and the accurate estimation of pollutant discharge from rivers.
Study on the status of the use of sea space resource in China’s marine industry
Jian-li ZHANG, De-rui SONG, Chao ZHOU, Jing-ping XU, Rong SUN
Accepted Manuscript  doi: 10.12111/j.mes.20190134
[Abstract](493) [FullText HTML](414) [PDF 699KB](4)
Abstract:
Improving the economic efficiency of marine space resource utilization is an important measure for building marine power. This paper proposed a marine industry classification system, then constructed some mathematical models for study on the relationship between sea structure and economic value of marine industry, such as the industrial sea structure diversification index, economic output value and economic efficiency, and analyzes the relationship between the spatial resource use structure and economic efficiency. The conclusions were as follows: (1) The marine industry classification system had an important practical significance for other related research; (2) China's marine industry sea uses were mainly in traditional marine industries, such as fishery, transportation, engineering and construction, which distributed centrally in space; (3) The sea structure diversification index of China's marine industry was generally low, and the inter-provincial difference of ocean space resource use economic output value was obvious; (4) The economic efficiency of marine space resource use was basically positively correlated with the diversification index.
The spatial distribution of environmental factors and the response of net-phytoplankton in the Laizhou bay during wet-season in 2017
Xin-quan ZHANG, Hui-chao JIANG, Yuan-qing MA, Ling CHENG, Jia-hui LI
Accepted Manuscript  doi: 10.12111/j.mes.20190026
[Abstract](530) [FullText HTML](389) [PDF 861KB](4)
Abstract:
To better understand the distribution of environmental factors and the response of phytoplankton in the Laizhou bay, a comprehensive survey contained 31 stations about surfer sea temperature (SSS), surfer sea salinity (SST), nitrite (NO2-N), nitrate (NO3-N), ammonium (NH4-N), dissolved inorganic nitrogen (DIN), phosphate (PO4-P), silicate (SiO3-Si) and net-phytoplankton abundance and species diversity (H′) was conducted in August 2017. In the present study, obvious spatial distribution differences of environmental factors were observed with high SST, nutrients while low SSS located in southwest coast of the Laizhou Bay, especially at Xiaoqing River estuary. The terrestrial inputs such as the Xiaoqing River and its vicinity were the main factors influencing the distributions of SSS and nutrients. The low NH4-N value at the Xiaoqing River estuary was mainly attributed to the NH4-N reduction in the Xiaoqing River. High phytoplankton abundance and low H′, showing obvious spatial distribution differences, were mainly observed at the Xiaoqing River estuary. Four different phytoplankton groups were observed according to the community structures difference indicating an obvious response of phytoplankton to environmental factor variations. Phytoplankton abundance showed significant negative correlation with SSS and Si/N (p<0.05) while positive with NO3-N, NH4-N and DIN. Significant negative correlations were observed between H′ and SST, DIN (p<0.05). The phytoplankton community structure were mostly influenced by the environmental combination of NO3-N、NH4-N、DISi、Si/N and single factor of DISi.
Optimum conditions for the determination of 10 main elements in marine sediments by the fused bead-X-ray fluorescence spectrometry
Xuan SUN, Jin-ming SONG, Ying YU, Ling-ling SUN, Yao LIU
Accepted Manuscript  doi: 10.12111/j.mes.20190116
[Abstract](432) [FullText HTML](413) [PDF 629KB](1)
Abstract:
In this thesis, a method for the determination of major elements (including Na2O, MgO, Al2O3, SiO2, P2O5, K2O, CaO, Fe2O3, MnO, and Ti2O) in marine sediments by the X-ray fluorescence (XRF) spectrometry is optimized. In the experiment, the Li2B4O7-LiBO2 mixture [m(Li2B4O7):(LiBO2)=67:33] is adopted as the flux, LiNO3 as the oxidant, and LiBr as the mold discharging agent. Under the above condition, the sample was prepared by melting. Meanwhile, the calibration curves were constructed, through applying the certified reference materials, such as soil, stream sediment, and marine sediment by X-ray fluorescence spectrometer. Moreover, the effects of flux, dilution ratio, remolding agent, melting temperature, and melting time on the determination results, were systematically studied. The results show that high-quality fuses were obtained under the following conditions: the sample and the mixed flux was uniformly mixed; the melt dilution ratio is 1:10; the mixture was pre-oxidized at 700 °C for 200 seconds and melted at 1,050 °C for 10 minutes. The loss on ignition (LOI) detection was not necessary while a relative large dilution ratio combined unknown LOI correction was adopted, which greatly simplified the test method. Testing with the marine sediment standard substance GBW07314, we find that the relative standard deviation (RSD) of each component content was 0.32%~2.05%, and the detection limit of the method was 70~270 ug/g. In the accuracy of the artificial standard sample, there was no significant difference between the measured value and the recommended value. The results reveal that the method is accurate and reliable, which can be utilized for accurate quantitative analysis of geological and geographic stream sediments, rocks, minerals, soils, and other samples., rocks, minerals, soils, and other samples.
Overview on indicator bacterial concentration prediction model of bathing beaches
Hui-ling HUANG, Hong-xia MING, Jing-feng FAN, Bin WANG
Accepted Manuscript  doi: 10.12111/j.mes.20190196
[Abstract](699) [FullText HTML](456) [PDF 560KB](0)
Abstract:
It will help to ensure the safety of the bathing water quality and avoid the time-lag of the traditional monitoring method affecting the effectiveness of the beach management using a concentration prediction model for fecal indicator bacteria (FIB). And it also can provide the health guidance and technical supporting to the public and beach manager in timely. Based on the technical development status of the indicator bacterial concentration prediction model of bathing beaches, the model construction methods were comprehensively reviewed in this paper, and the characteristics, application scopes, advantages and disadvantages of various models were also summarized. In addition, the difficulties and bottleneck in constructing the indicator bacterial concentration prediction model in bathing beaches of China were analyzed. Finally, the development trend of the model was prospected, which will provide a valuable reference for administrative department of China.
A laboratory experimental research into the bioturbation effects of Sinonovacula constricta on the content of nitrogen forms in columnar sediments.
Shuo ZHANG, Ming-rui TANG, Ji-kun LU, Hong HUANG
 doi: 10.12111/j.mes.20190092
[Abstract](590) [FullText HTML](402) [PDF 734KB](2)
Abstract:
The bioturbation effects of Sinonovacula constricta on the transformation of different forms of nitrogen in sediments were studied based on a laboratory experiment in this study. Two treatment groups and a control group were set up according to different biological densities (99 ind/m2, 249 ind/m2), and a 20-day laboratory experiment was carried out in the condition of water temperature 23℃, salinity 26 psu, and pH8. The columnar sediments were stratified and cut from top to bottom, and the changes of different forms of nitrogen content in the sediment were analyzed. Results showed that the content of total nitrogen (TN) in the sediment increased after the bioturbation of S. constricta. The content of non-transferable total nitrogen (NTN) increased by 30.94%, and the content of transferable total nitrogen (TTN) decreased by 20.57%. The content of organic-sulphide form (OSF-N) was the highest among the four forms, accounting for 9.31% of TN, which was the main form of TTN. The content of carbonate form (CF-N) was the lowest and only 2.77% of TN. The ion exchange form (IEF-N) and the iron manganese oxide form (IMOF-N) accounted for 3.39% and 3.06% of TN, respectively. Above all, the bioturbation of S. constricta promoted the conversion of OSF-N to other forms, as well as the conversion of transferable total nitrogen to non-transferable total nitrogen.
Characteristics and evaluation of corrosive environment of surface sediments: a case study of the Sanya bay
Pei-wang BIAN, Fa-jin CHEN, Ye-chun ZHANG, xin ZHOU, Xing-jian LIU, Yu-fen XU
 doi: 10.12111/j.mes.20190010
[Abstract](620) [FullText HTML](451) [PDF 821KB](5)
Abstract:
With the increasing construction of submarine pipeline projects, the corrosive environment of submarine sediments has attracted more and more attention. The sediments collected in Sanya bay In March 2017, according to the comprehensive analysis of corrosion factors such as type, pH, Eh(Redox potential), organic carbon content, total salt content, Fe3+/Fe2+, sulfides and sulfate reducing bacteria of the sediments. determined the redox environment of the sediment and evaluated the corrosivity of the sediment. According to the evaluation, the sediments in the seabed of the Sanya bay as a whole show strong oxidizing environment, a weak oxidizing environment locally, and weak corrosion intensity, which is more suitable for the construction of a submarine pipeline project.
The basic characteristics and prevention countermeasures of red tide in Shandong coast waters
Jian ZHOU, Wei WANG, Zhi-hong WU, Qi-xiang WANG, Yuan WANG, Xiang GAO
 doi: 10.12111/j.mes.20190043
[Abstract](574) [FullText HTML](497) [PDF 874KB](5)
Abstract:
Based on historical records of red tides from 1952 to 2017, and according to the analysis of their temporal, spatial, and biological variation, the basic characteristics of red tides in Shandong coastal waters are studied with preventive countermeasures proposed. Non-toxic dinoflagellate blooms are frequently observed with a scale less than 10 km2 in shandong coast waters. The incidence of red tides is high from May to September and most events occur in the Yellow River Estuary, midwest of Laizhou Bay, Changdao offshore waters, Sishili Bay, Donggang offshore waters, Jiaozhou Bay and the Qingdao coast. Compared with other species, Noctiluca scintillans is frequently found. However, new causative organisms have been identified and the proportion of toxic and biphasic red tides has also increased since 2000. In order to prevent red tides, the level of information monitoring should be improved, risk assessments carried out and comprehensive management of the marine environment promoted.
Study on status and management of Antarctic ecological environment
Yun-ze GAO, Rui-jing LI, Shuai-chen JIN, Hui GAO, Chao HOU, Sheng-kai CAO, Guang-shui NA
Accepted Manuscript  doi: 10.12111/j.mes.20190075
[Abstract](657) [FullText HTML](497) [PDF 784KB](11)
Abstract:
As the last ‘pure land’ in the world, the Antarctic attracts many countries’ interest because of rich natural resources as well as inherent scientific and aesthetic values. Under the influence of factors such as global warming and human activities (scientific research, commercial fishing, tourism, etc.), the Antarctic ecological environment problems such as regional increase/decrease of Antarctic sea ice area; fluctuation of Antarctic species; and aggravating of environment pollutants detected are emerging. However, the current management policies based on the "Antarctic Treaty System" cannot fully regulate human activities due to issues such as abstraction of ideas. The environmental protection in Antarctic is becoming increasingly severe. International community should develop interdisciplinary international collaboration, strengthen the link between scientific research and management and improve management policies of Antarctic ecological environment so as to minimize the destruction on the Antarctic ecological environment.
Production of transparent exopolymer particles from two marine diatoms and its ecological significance
Kang-li GUO, Jie CHEN, Xiao-dong WANG, Yan WANG
 doi: 10.12111/j.mes.20190053
[Abstract](7538) [FullText HTML](7498) [PDF 968KB](33)
Abstract:
The transparent exopolymer particles(TEP), a kind of transparent colloidal particulate matter, consists of extracellular polysaccharides. TEP is of great significance to the carbon cycle of marine ecosystems. In this study, two marine diatoms, Ditylume brightwelii and Chaetoceros affinis, were studied. The TEP concentration, the relationship between TEP and Chlorophyll a (Chl a) and the C∶N ratio of TEP were studied at different growth phases. The results showed that TEP was produced by both species during the whole growth phases, and TEP concentration was different in different growth phase. The maximum TEP concentration of D. brightwelii and C. affinis was produced in the exponential phase and the decline phase, respectively. The maximum TEP concentration per cell volume and per Chl a of C. affinis was 184.91±14.03 fg Xeq/μm3 and 38.06±4.96 μg Xeq./μg Chl a, and were 16 and 5 times higher than the values obtained from the D. brightwelii. The analysis of the relationship between Chl a and TEP in two diatoms showed that the function relationship between TEP=α (Chl a) β was presented in the exponential phase (D. brightwelii: R2=0.98; C. affinis: R2=0.80). The TEP C∶N ratio of both diatoms was higher than the Redfield ratio (C∶N=106∶16). It indicates that the generation of TEP was difference between species, and the growth phase significantly affects the efficiency of TEP production. The high carbon concentration of TEP show that TEP production contributes significantly to the ocean carbon cycle.
Using detaching method to determine the abundance of particle-attached bacteria from the Pearl River Estuary and its coupling relationship with environmental factors
Zai-ming GE, Zheng-chao WU, Zi-jia LIU, Wei-wen ZHOU, Yuan DONG, Qian LI
 doi: 10.12111/j.mes.20190065
[Abstract](6802) [FullText HTML](6606) [PDF 946KB](22)
Abstract:
Export fluxes of sinking particulate organic carbon (POC) are important for the function of biological carbon pump. Vertical transportation of POC into the ocean interior can be affected by particle-attached bacteria (PAB) via the change of their abundance and activities, which may eventually affect the carbon sequestration into the ocean. In order to better understand the characteristics of PAB in the turbid nearshore waters along the Pearl River Estuary (PRE), we applied and modified an existing analytical procedure to effectively detach PAB from sinking particles for more direct and accurate estimation of PAB. The coupling relationship between environmental factors and the abundance of PAB were further analyzed and discussed. our results suggested that PAB from the fraction 2~20 μm particles was the dominant component of PAB in all stations. Moreover, there was a spatial change of PAB along the PRE with the highest abundance at Xiangzhou port (4.21×109 cells/L), following by Zhongda port (1.13×109 cells/L) and Wanshan island (0.27×109 cells/L). We also found that suspended organic particles might have supported PAB growth at Xiangzhou port where there was high PAB but low chlorophyll a. In addition, the growth of PAB might also subject to influences by varying concentrations and species compositions of inorganic nutrients in coastal waters. These results may be important for further understanding of PAB associated biogeochemical processes in coastal ecosystem.
The vertical distribution patterns of heavy metals in a sediment core of the Jiaozhou bay and their controlling factors
Dong-hua ZHANG, Zhao-zhen LV, Zhu-feng SHAO, Xiang-huai KONG, Hui-wang GAO, Yan-bin LI
 doi: 10.12111/j.mes.20190090
[Abstract](6848) [FullText HTML](6952) [PDF 826KB](16)
Abstract:
A sediment core was collected in the Jiaozhou bay in 2011. The concentrations of eight heavy metals (mercury (Hg), arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni), lead (Pb) and zinc (Zn)) in the sediment core from 0 m to 1 m were measured. These raw data were then utilized to calculate the enrichment factors (enrichment factors, EFs, represents the enrichment status of elements) of these metals. The results showed that both concentrations and EFs of these heavy metals presented a peak or had the highest value in the subsurface layer (at around 20 cm) of the sediment core. The age of sediment at such depth was estimated to be around 20 years using the reported sediment settlement rate. This indicates that the contamination of heavy metals in Jiaozhou bay sediment may be significantly affected by the high-intensity anthropogenic discharge of heavy metals into the Jiaozhou bay in the late 1980s and 1990s. Pearson correlation and multiple regression analyses were further performed to investigate the primary controlling factors for heavy metals in Jiaozhou bay sediment. The results suggest that the inter-annual variations of the eight common heavy metals may be controlled by different environmental factors in Jiaozhou bay sediment. In addition, the potential ecological risk index was calculated to evaluate the potential risks of these heavy metals in Jiaozhou Bay sediment and their historical variation trends. Mercury generally had a moderate risk in the Jiaozhou bay, and its risk has been increasing in recent years. This finding suggests that Hg should be put in the priority metal to be controlled in the Jiaozhou bay.
Assessment of heavy metal pollution in sediments of the sea area around the Liandao island of Haizhou bay
Xia LU, Li-qiang FAN, Shi-yu BAO, Gao-li LU, Xian-yun FEI
 doi: 10.12111/j.mes.20190011
[Abstract](7084) [FullText HTML](6900) [PDF 773KB](16)
Abstract:
The total 21 surface sediment samples were collected in the sea area around Liandao island, which is located in Haizhou bay, Jiangsu province, China. The heavy metals (Cd, Cr, Cu, Pb and Hg) contents and the metal-like arsenic (As) content were determined. The spatial distribution maps of heavy metals and metal-like As were obtained by using Kriging interpolation method. The pollution degree and risk grade of heavy metals and metal-like As were assessed by ground accumulation index and potential ecological risk index respectively. The results were indicated that the average content of heavy metal Cu was higher than the Class 1 standard according to the Marine Sediment Quality (GB 18668-2002). The variation coefficients of heavy metal Cu and Pb were 114.66% and 108.44% respectively. Therefore, they had strong spatial dispersion. The pollution degree of heavy metals and metal-like As ranked from large to small: Cd>Pb>Cu>As>Hg>Cr based on the analysis results of ground accumulation method, in which heavy metal Cd, Cu and Pb were the moderate pollution, As and Hg were mild pollution, and Cr was non-pollution. The overall potential ecological risk level in the sea area of Liandao island reached the medium level. There existed the high ecological risk level of heavy metals and metal-like As in the southern part of Liandao island. Further, the ecological risk of surface sediments was mainly caused by heavy metal Cd.
Distribution of dissolved gaseous mercury and reactive Hg and their controlling factors in the East China Sea in summer
Guo-yi CHENG, Lu-feng CHEN, Chang LIU, Yan-bin LI
 doi: 10.12111/j.mes.20190100
[Abstract](6763) [FullText HTML](6651) [PDF 795KB](10)
Abstract:
Dissolved gaseous mercury (DGM), reactive Hg (RHg), total Hg (THg) and dissolved Hg (DHg) concentrations were analyzed in the seawater of the East China Sea (ECS) during a cruise in June 2018. The distribution patterns of DGM and RHg and their controlling factors in the East China Sea (ECS) were investigated. The concentrations of DGM and RHg in the seawater were determined to be 151.3±75.9 pg/L and 0.8±0.7 ng/L, respectively. The ratios of DGM/THg, DGM/RHg and RHg/THg were calculated to be (4.5±2.5)%, (26.7±15.0)% and(21.6±14.8)%, respectively. DGM and RHg concentrations in the ECS water were significantly higher than that in most open oceans, but lower than or comparable to that reported in most coastal seas. Both DGM and RHg in the seawater presented a complicated spatial distribution pattern, with high concentration areas located in both nearshore shallow seawater, and offshore shallow and deep seawater. These results indicate that both species of Hg may be controlled by both the terrestrial input and in situ production/removal processes. As for the vertical distribution, the concentrations of DGM and RHg in the bottom seawater were observed to be the lowest, while comparable concentrations were observed at all the other sampling layers. Although highest THg concentration was observed in the bottom seawater of the ECS, DHg concentrations in the bottom seawater were slightly lower than those at the other layers. This may be a reasonable explanation of the lower RHg and DGM concentrations in the bottom water. Spearman’ correlation and multiple regression analyses suggest that RHg and dissolved oxygen (DO) concentrations may be the major controlling factors for DGM in the seawater, while RHg in the seawater may be controlled by DO.
Preliminary study on characteristics of coastline and vegetation changes during island group reclamation——taking Zhoushan Petrochemical Base as an example
Zhong-chang XU, Ren XU, Zheng-long ZHANG, Zhi-en LI
 doi: 10.12111/j.mes.20190022
[Abstract](6722) [FullText HTML](6591) [PDF 869KB](7)
Abstract:
The study interpreted seven temporal satellite remote sensing images of Zhoushan Petrochemical Base project area, Combined the collection of relevant information and the field survey of landing on the island, extracted and analyzed the changes of coastline and vegetation distribution in different periods of Zhoushan petrochemical base construction through remote sensing (RS) and geographic information system (GIS). The results show that natural shoreline of island group reduced by 21.335 km in Zhoushan Petrochemical Base Project which accounts for 75.4% of the original natural coastline. Vegetation of island group reduced by 3.537 km2 which accounts for 74.0% of the vegetation area of the original island group in the past three years. The change of island group can be divided into four stages: the development of main island Dayushan, the process of connecting Dayushan Island and Xiaoyushan Island, the island group enclosed as a whole and enclosure period of island group expansion. In the first three stages, the natural shoreline of island group decreased rapidly, the artificial shoreline increased rapidly. In the fourth stage, the natural shoreline decreased slowly, and the artificial shoreline rushed up and fell back quickly. The vegetation of the island group decreased rapidly in the first two stages and slowly in the latter two stages. The above characteristics are mainly related to the process of the project construction. It is suggested that the island management department should do a good job in ecological protection and restoration in the development of the island group because of the serious influence to the original ecological environment of the island group created by the project development.
Distribution and sources of polycyclic aromatic hydrocarbons in seawater and sediment from Xiangshan port, China
Meng-rong YANG, Xiao-rong DAI, Hang XIAO
 doi: 10.12111/j.mes.20190045
[Abstract](944) [FullText HTML](886) [PDF 893KB](14)
Abstract:
In order to study the distribution of polycyclic aromatic hydrocarbons (PAHs) in the sediment-seawater system, 16 kinds priority control PAHs in the sediments and seawater from 9 sampling points at the Xiangshan port were analyzed in January 2017. The source analysis and diffusion equilibrium were conducted by isomerism ratio method and fugacity approach. The concentrations of PAHs in the sediments ranged from 17.51×10-9~84.41×10-9, mainly high ring PAHs, and the pollution level was minor polluted. The PAHs in the sediments primarily came from high temperature combustion sources. The ranges of PAHs in the surface seawater, intermediate seawater and bottom seawater were 41.78~105.72 ng/L, 41.51~106.34 ng/L and 9.18~145.17 ng/L, respectively, which low ring PAHs were the most abundant compounds. The sources of PAHs in seawater originated mainly from oil leakage and oil combustion. The fugacity fraction was calculated to judge the diffusion behavior of PAHs. Nap, Ace and Flo were released from sediments to seawater. Acy, Phe, Ant and Pyr were close to the dynamic equilibrium in sediments and seawater. Flu, BaA, Chr and BbF were mainly diffused from seawater to sediment.
Distribution of the thermal discharge pollution of coastal power plant based on Landsat 8
Qin-qin SUN, Mei-xue LUO, Jia-jin ZHANG, Yin-yu LAN
 doi: 10.12111/j.mes.20190008
[Abstract](935) [FullText HTML](670) [PDF 828KB](5)
Abstract:
The sea surface temperature has been retrieved from Landsat 8 TIRS 10, which shows that the water temperature nearby the discharge area of Nanpu power plant are increased in summer and winter compared with that in the reference area. The scope of water temperature rise is larger and the degree is smaller in summer, while the scope of water temperature rise is smaller and the degree is larger in winter. The thermal discharge pollution from the power plant goes northwest to Waiwu island at rising tide, and moves to southeast at ebb tide. Due to the coal wharf and diversion dike, thermal discharge has little effect on intake. The retrieving results based on satellite images are consistent with the numerical simulation results before project construction.
Study on sedimental archaeal diversity and its correlation with environmental factors in Coastal Chemical Industry Park
Bei HUANG, Jie-yu WANG, Na WEI, Qin-ling MU, Han-yan LUO
 doi: 10.12111/j.mes.20190050
[Abstract](7073) [FullText HTML](6851) [PDF 863KB](7)
Abstract:
Archaeal community plays an extremely important role in marine biosphere and affects the cycling of carbon, nitrogen, sulfur, iron, and other elements in marine ecosystems. There are a large number of archaea in marine sediments. The investigation on their distribution and diversity lays the basis of understanding their ecological functions. In this study, the sediments of Jiaojiang Chemical Industry Park of Zhejiang Province were sampled, and metagenomic analysis based on the Illumina Miseq PE300 high throughput sequencing platform was applied to investigate the Archaea community. A total of 52 genera, 37 families, and 11 phyla of Archaea were detected from the sediments. Thaumarchaeota was the most predominant phylum, accounting for 49% of the total abundance, followed by Crenarchaeota, Euryarchaeota, and Woesearchaeota. Nitrosopumilus was the most abundant group at genus level, accounting for 48% of the total abundance. Obvious spatial heterogeneity was found in marine sedimental environment in the study area, which might have an impact on the archaeal community structure. Cadmium, lead, arsenic, chromium, mercury and other heavy metals were significantly correlated with certain archaeal phyla.
Occurrence and risk assessment of organophosphorus esters in surface water of mariculture farms in the Qinzhou bay, China
Wei-bin ZENG, Min-wei HAN, Rui-ling ZHANG, Rui-jie ZHANG, Ying-hui WANG, Ke-fu YU
 doi: 10.12111/j.mes.20190046
[Abstract](7181) [FullText HTML](6970) [PDF 4079KB](9)
Abstract:
In this study, 11 organophosphorus esters (OPEs) in the surface water from mariculture farms, estuaries and the nearshore of the Qinzhou bay were analyzed. The total concentration of 11 OPEs averaged 126 ng/L and ranged from 32.9 to 227 ng/L the mean, which was at the lower level among the similar regions worldwide. The predominant contaminants were TCEP, TCPP and TBEP. The level of individual OPEs in the Qinzhou bay was mainly affected by their own aqueous solubilities and octanol-water partition coefficients (KOW) as well as their productions and consumptions. In general, the concentrations of OPEs were higher in the aquaculture ponds than in the nearby estuaries and nearshore area. The OPEs accumulated in the ponds might be mainly from the sources of culture water: rivers and coastal water. Chlorinated OPEs were more persistent than non-chlorinated OPEs in the culture ponds. So far, the concentrations of OPEs in the study area have no significant ecological impact on the surrounding environment, but its potential threat to human cannot be ignored because of their possible bioaccumulation in seafood.
Compositions and sources of plastic debris and microplastics in different sizes from the Sanggou bay beaches, Yellow Sea, China
Xin-yue ZHAO, Kuan-xu XIONG, Qian ZHOU, Chen TU, Lian-zhen LI, Yong-ming LUO
 doi: 10.12111/j.mes.20190004
[Abstract](7392) [FullText HTML](7097) [PDF 942KB](15)
Abstract:
The sources of microplastics in coastal areas are complex. The fragmentation of large plastics through physical, chemical and biological processes is one of the main sources of microplastics in the beaches. This study investigated the compositions, abundances, shapes, colors and components of plastic debris and the microplastics of different sizes in 7 beaches in Sanggou bay of the Yellow Sea. We also studied the relationships between the fragmentation of plastic debris and microplastics by qualitative and quantitative analysis, which can be used to identify the sources of the microplastics. The results showed that polystyrene foam accounted for 85%, 97% and 82% of the samples in the size range of 5 mm ~ 2.5 cm, 1 ~ 5 mm and <1 mm respectively. In plastic debris >2.5 cm, the types of the plastic debris related to mariculture accounted for 76%. The total abundances of plastic debris and microplastics increased by 2 ~ 4 orders of magnitude with the decrease of sizes and the abundances of microplastics and plastic debris in 1 ~ 5 mm and 5 mm ~ 2.5 cm were significantly correlated. By comparing the morphology and components characteristics of different sizes of plastic debris and microplastics, the sources of microplastics were identified as fragmentations from polystyrene foam, polyethylene float, yellow sponge, fiber fishing ropes and polypropylene film ropes. The results indicate that mariculture is one of the important sources of plastic debris and microplastics in beaches of Sangou bay. In the future, it is necessary to further explore the identification methods of sources and find new evidences to identify the sources of microplastics.
Principle and development of new microwave radiometer to obvserve ocean
Xiao-feng MA, Ming-sen LIN, Wu ZHOU, You-guang ZHANG
 doi: 10.12111/j.mes.20190032
[Abstract](7181) [FullText HTML](6946) [PDF 762KB](9)
Abstract:
Full polarization interferometric radiometer, which can image from interferometric synthetic aperture and get full polarization information, is the new type of microwave radiometer that can measure various physical information of ocean with high resolution and low consumption. By introducing the development of full polarization and synthetic aperture respectively, we expound on the necessity and principle of full polarization and synthetic aperture to aquire ocean information. Taking the advantages and disadvantages of WindSat and MIRAS as an example, we have discussed the advantages of multi-functional microwave radiometer and multi-load microwave sensors satellite to observe ocean. Moreover, to develop our satellite observation of ocean salinity, the necessity and the difficulity of collaborations of full polarization interferometric radiometer are pointed out for the application of multiple microwave remote sensing.
Effects of storage and filtration methods of riverine dissolved inorganic nutrients on their determination: a case study of the Yellow River water sample
Hong-mei ZHANG, Su-mei LIU, Guo-dong SONG, Shuai DING
 doi: 10.12111/j.mes.20190003
[Abstract](1599) [FullText HTML](1192) [PDF 891KB](35)
Abstract:
Timely pretreatment and proper storage of nutrient samples are the pre-conditions to ensure the reliability of data. In this study, we examine the differences between frozen storage and preservation with mercury chloride at room temperature for dissolved silicate in the Yellow River water sample that is characterized of high turbidity. We found out that there was no significant difference between the two storage methods. We compared in-situ filtration (freezing stored in 9 mL vacuum polyethylene terephthalate tube) and delayed filtration (freezing stored in 125 mL high density polyethylene bottle) for the nutrients, and discussed the effects of delayed filtration time on nutrients data quality. Nitrite, nitrate and phosphate were not affected by prolonged filtration time, while ammonium was significantly impacted by a decrease of 11%~46%, possibly due to suspended particulate matter adsorption and/or phytoplankton assimilation. As for silicate, storage container and its volume may play a major role in silicate storage while the prolongation of filtration time is much less important.
Display Method:
Investigation and Research
Toxic effects of different particle size polyethylene microbeads on Daphnia magna
Ning GONG, Xu HAN, Jia-fan LI, Kui-shuang SHAO, Xiu-rui LIAO, Ye-qing SUN
2020, 39(2): 169-176.   doi: 10.12111/j.mes20200201
[Abstract](170) [FullText HTML](145) [PDF 5880KB](25)
Abstract:
Microplastics (MPs) contamination represents a dramatic environmental problem threatening both freshwater and marine organisms.Although several studies have highlighted the presence of MPs in aquatic environments, the information regarding their toxicity towards freshwater organisms is still scant.In this paper, Daphnia magna, a freshwater cladoceran, was selected as the test organism in this study.3 sizes of polyethylene (PE) particles, including 2 μm, 20 μm and 50 μm, were used to investigate their acute toxic effects according to OECD guideline for water flea acute immobilisation test.The results showed that all three sizes of PE particles could be ingested by water flea and accumulated in their guts, which caused the immobilization and may affect their lipid metabolism.PE particles in water could adhere to the body of animals, affecting their moving and feeding.In the concentration range of 5~80 mg/L, ingestion of 2 μm PE particles led to immobilisation increasing with dose and time with an EC50 of 50.86 mg/L after 96 h exposure; for 20 μm and 50 μm PE particles, however, the immobilization appeared an inverted U-shaped curve with the dose increasing.After 48 h exposure, the LOEC values of the 3 sizes of PE particles were 60, 20 and 5 mg/L, respectively.It is indicated that particle size is one of the important factors affecting the ingestion and accumulation of MPs in water flea.These results underline that MPs can induce adverse effects in freshwater zooplankton and potentially impact the function of the ecosystem.
Trace metal contents in Enteromorpha and Sargassum from South Yellow Sea, China
Tian-ci GAO, Xue-lu GAO, Qian-guo XING, Bo YANG, Yu-xi LU
2020, 39(2): 177-182, 210.   doi: 10.12111/j.mes20200202
[Abstract](228) [FullText HTML](108) [PDF 3009KB](12)
Abstract:
In this research, the contents of As, Cd, Cr, Cu, Mn, Pb and Zn in Enteromorpha and Sargassum were determined by the Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES).The accumulation coefficients of the metals were compared, and the principal component analysis was performed.The results indicated that the average contents of trace metals in Enteromorpha followed the order:Zn > Cu ≈ Mn > As > Cr > Cd > Pb, while in Sargassum they followed the order:As > Zn > Cu > Mn > Cd > Cr > Pb.The accumulation coefficients in Enteromorpha followed the order:Cu > Cr ≈ Cd > Zn > Mn > As > Pb, while in Sargassum they followed the order:As > Cd > Cu > Zn > Cr > Pb ≈ Mn.The recoveries of target metals in the two certified reference materials used in this research, i.e.Porphyra and Spirulina, were 81.95%~108.75% and 81.43%~109.74%, respectively; the results of spike recovery test on the two reference materials were 87.88%~104.76% and 86.11%~112.29% respectively.The linear correlation coefficients of the standard working curves were all greater than 0.999.The method has high sensitivity and is easy to operate, which is suitable for detecting the contents of trace metals in algae.
Feature of phytoplankton groups in Yangtze Estuary and its relationship with environmental factors in winter, 2016
Yan-min ZHAO, Ying-qun MA, Wei CAO, Zhi-chao LIU, Chen-chen YANG, Yan-wen QIN, Lei ZHANG
2020, 39(2): 183-188.   doi: 10.12111/j.mes20200203
[Abstract](134) [FullText HTML](157) [PDF 4726KB](13)
Abstract:
An integrated survey of the Yangtze Estuary was conducted in December 2016 to obtain the information of the phytoplankton groups and directed gradient analysis were carried out to explore the relationship between phytoplankton distribution and the environmental factors.96 and 63 phytoplankton species were identified during the neap tide period and spring tide period.Diatom, blue algae and green algae were the major phytoplankton group in survey area.Microcystis spp and Skeletonema costatum were the dominant species in the studied area.Based on the ecological characteristics and the distribution, the phytoplankton can be divided into four ecological groups:groups of freshwater, estuarine brackish water groups, nearshore low salt groups, ocean s groups.Margalef, Shannon-Wiener and Pielou's index were unevenly distributed in the study areas with high species diversity and evenness in Northeast areas.Canonical correspondence analysis (CCA) results of the relationship between phytoplankton species and environmental factors indicated that the salinity, conductivity, turbidity and nutrient salts jointly determined by the runoff of the Yangtze River and seawater determine the distribution of the phytoplankton in the Yangtze Estuary.
The effect of α-FeOOH on adsorption kinetics of phosphorus and the solid concentration effect of resuspended sediments
Chen CHENG, Zeng-wen GAO, Yu-hao LI, Jing LI
2020, 39(2): 189-194.   doi: 10.12111/j.mes20200204
[Abstract](116) [FullText HTML](145) [PDF 4311KB](4)
Abstract:
The effect of phosphorus-free α-FeOOH on the adsorption/desorption kinetics of phosphorus(P) and solid concentration effect of the resuspended sediments collected from Chengdao Oilfield in Bohai Sea were studied using batch experiments.The results indicated that α-FeOOH improved the rate, capacity of sediments adsorbing P, and the ratio of the amount of P adsorbed at fast stage to that at kinetic equilibrium on the sediments.In addition, the ratio of the amount of P desorbed to that pre-adsorbed on the sediments decreased with increasing α-FeOOH content, suggesting that α-FeOOH was unfavorable for sediments desorbing P.Freundlich coefficient (KF) ratio of sediments of 10 g/L to 2 g/L was closer to 1 with increasing α-FeOOH content in sediments, which meant the weakening of solid concentration effect.The effect of a concentration change of sediments on reversibility can be explored through the equation KF=a*S-b.The index of solid concentration effect, b, decreased with increasing the α-FeOOH content in sediments, which revealed that the potential mechanism of α-FeOOH weakening solid concentration effect was through reducing reversibility.This research provides an example for weakening the solid concentration effect under conditions of increasing the irreversibility of an adsorption system.
Urbanization of coastal zone impacts on Chlorophyll-a concentration in offshore area: a case study of Shenzhen
Lin YI, Kai ZHOU, Jiu-juan WANG, Yu HAN, Guang-tuo DUAN, Jin-song CHEN
2020, 39(2): 195-202.   doi: 10.12111/j.mes20200205
[Abstract](126) [FullText HTML](91) [PDF 3810KB](12)
Abstract:
Restricted by large-scale and long-time series monitoring data acquisition difficulties, the impact of coastal urbanization on the overall spatial differentiation of chlorophyll-a concentration in coastal waters is insufficient.In this paper, the daily mean series of chlorophyll-a concentration in Shenzhen coastal waters in 2015 was analyzed by using singular spectrum analysis method to increase the richness of analyzable data, and then the relationship between coastal urbanization and spatial and temporal differentiation of chlorophyll-a concentration was studied.Results showed that land use types' area ratio, spatial distribution in buffers of each buoy point had a controlling effect on Chlorophyll-a Concentration in coastal waters, and the degree of influence of industrial land was stronger than residential land, which was stronger than agricultural land.The closer the buoy point is to the coastal zone, the longer the fixed fluctuation period of chlorophyll-a concentration and the greater monthly/weekly fluctuations.The increasing scale and distribution of industrial land and residential land will shorten the fluctuation period of chlorophyll-a concentration.
Ecosystem-based management of bay: integrated framework and control strategies
Lan-lan XIONG, Xiao-ping HUANG, Jing-ping ZHANG, Ling ZHANG, Zhi-jian JIANG
2020, 39(2): 203-210.   doi: 10.12111/j.mes20200206
[Abstract](145) [FullText HTML](114) [PDF 1781KB](7)
Abstract:
Bay is a relatively independent and complete ecosystem with superior location and resource advantages.It faces huge utilization demands, which increase the environment pressure.Ecosystem based management (EBM) is the mainstream paradigm of resource and environment management in international, providing new theoretical for solving ecological and environmental crisis.This paper analyzed the characteristics of bay ecosystem and ecological environment problems, put forward ecosystem-based integrated management framework of bay(BEBM), including principles, goals, and specific control strategies based on the theory and practices of EBM.Control strategies included five aspects:develop integrated space planning of watershed-bay, control land-based pollution by changing land use of the watershed, maintain hydrodynamic conditions and protect key habitat, establish integrated watershed-bay management mechanism.It will provide references for bay development and protection.
Biological accumulation and release of roxarsone in marine scallop (Chlamys farreri)
Li-ping YOU, Shan SUN, Yu-ting ZHAO, Yuan-qing MA, Bin LI, Li-ming WANG, Yan-min QI, Jia-hui LI, Xiao-xiao DONG, Yun-chang ZHANG
2020, 39(2): 211-215, 229.   doi: 10.12111/j.mes20200207
[Abstract](113) [FullText HTML](79) [PDF 2791KB](0)
Abstract:
The marine bivalve scallop (Chlamys farreri) was selected as the target organism, and the roxarsone exposed experiments were carried out with the nominal concentrations of 0 mg/L、0.2 mg/L、1 mg/L、5 mg/L、25 mg/L.The biological accumulation and release of arsenic (As) in hepatopancreas, gill, muscle, and mantle were studied.Results showed that:(1) Both in the natural sea and the clean seawater, the sequence of As content in the four tissues was gill > hepatopancreas > mantle > muscle.(2) During the bioaccumulation, the sequence of As content in the tissues was hepatopancreas > gill > mantle > muscle.And during the release, the sequence of the As release rate was gill > hepatopancreas > mantle > muscle.(3) The main pathway for roxarsone entering C.farreri was the ingestion and filter effects of gills.And the main target tissues of As bioaccumulation in C.farreri were hepatopancreas, gill, and mantle.(4) In the present study, the average period of bioaccumulation and release of As in C.farreri was 22 days in the bioaccumulation experiments, and 15 days in the release experiments.And meanwhile, there were 2 cycles in the release experiments and then the As content in the scallops tend to be stable.
Simulation of runoff into the sea from Biliu river basin based on SWAT model
Zi-zhou XU, Xu-dong ZHOU, Wei-na SUI, Kai ZHAO, Rong-juan ZHU, Ya-hui LIANG, Dong YU
2020, 39(2): 216-222.   doi: 10.12111/j.mes20200208
[Abstract](125) [FullText HTML](97) [PDF 2285KB](5)
Abstract:
The distributed hydrological model soil and water assessment tool(SWAT) of the Biliu river basin was built by using multi-source comprehensive data, and the model was calibrated and validated.The results show that runoff simulation in the Biliu river basin is mostly effective and the uncertainty of the model is slight supporting by the established SWAT model.In the calibration period, the Nash-Sutcliffe efficiency coefficient(Ens), the determination coefficient(R2) and the relative deviation(PBIAS) are 0.80, 0.86 and 18.9% correspondingly, the model uncertainty P factor and R factor are 0.78 and 0.58 respectively.In the validation period, Ens, R2 and PBIAS value are 0.87, 0.88 and 1.9% respectively.As results, building of the distributed hydrological model can solve the problem of limited monitoring rivers and difficulty of obtaining data of the runoff into the sea in marine scientific research work, so to provide high resolution flow data for assessments.
Evaluation on the cultivated land vulnerability of Shandong coastal areas under the flooding influence of 100-year tide level
Meng-meng LI, Xin-zheng LUO
2020, 39(2): 223-229.   doi: 10.12111/j.mes20200209
[Abstract](146) [FullText HTML](81) [PDF 3124KB](3)
Abstract:
the cultivated land area of the seven cities along the coast of Shandong accountes for 37.91% of the total cultivated land in the province.The agricultural output value accountes for 41.12% of the province.Because of the frequent storm surge, the agricultural loss was huge.The altitude of coastal cultivated land area is relatively low.When the tidal water easily run into the cultivate, the crop loss rate ofen is 100% in the current season.At the same time, tidal water changes the soil properties and affects the crop growth of the next season.The anti-tidal standard of the dyke and the compliance rate are low, they cannot against the 100-year storm surge.Therefore, it is conducive to mitigate disaster that we evaluate the vulnerability of cultivated land in the coastal areas of Shandong province.Apply landsat ETM, digital elevation model, surface coverage data and GIS system, this paper evaluated the vulnerability of cultivated land affected by 100-year tide in the coastal area of Shandong province.The vulnerability is divided into seven levels.Research result is as follows:The extremely high vulnerable are Kenli county and Dongying district; the very high vulnerable are Hekou district, Changyi county, Guangrao county and Hanting district; the high vulnerable areas are Chengyang district, Laoshan district and Shouguang city; The medium vulnerable are Laizhou city, Pingdu city, Kenli county and Dongying district; the low vulnerable are Lanshan district, Mugping city, Wendeng city, Rongcheng city, Jimo city, Jiaozhou city, Wudi county, Donggang district, Longkou city, Haiyang city, Hekou district, Zhanhua county and Huangdao district; the very low vulnerable are Penglai city, Huancui district, Lijin county, Zhifu district, Laoshan district, Rushan city and Chengyang district; the extremely low vulnerable are Fushan district, Laishan district and Zhaoyuan city.The vulnerable is caused by the 100-year tide level and the large ratio of inundated cultivated land in Kenli county, Dongying district, Hanting district, Guangrao county, Changyi county and Shouguang.The vulnerable is caused by the large ratio of inundated cultivated land in the Hekou district.
Discussion of coastline requisition-compensation balance system
Jing ZHOU, Yi-fan ZHANG, Lin-jing QU, You-shao WANG
2020, 39(2): 230-235.   doi: 10.12111/j.mes20200210
[Abstract](131) [FullText HTML](88) [PDF 1164KB](6)
Abstract:
The coastline is the boundary between the sea and the land, which has important ecological function and resource value, so called the "lifeline" and "golden-line" of marine economy development.Study on the coastline requisition-compensation balance system would be of significance that it is a realistic approach to the implementation of natural coastline preservation rate system, the promotion of intensive and economical utilization in coastline resources, and the achievement of harmonious development between coastline protection and marine economy.In this dissertation, some advice of implementing coastline requisition-compensation balance system in China is proposed for reference in coastline protection and utilization policy-making, based on analyzing the background, connotation and related management practice of the system, by drawing lessons from theories and experiences in cultivated land and wetland requisition-compensation balance systems.
Analysis on the influence of freshwater discharge on seawater desulphurization system of power plant
Mei-ling HUANG, Zhi-bo ZHOU, Bao-lei GENG, Yan XIONG, Jun MA
2020, 39(2): 236-243.   doi: 10.12111/j.mes20200211
[Abstract](121) [FullText HTML](91) [PDF 7199KB](1)
Abstract:
In order to understand the effect of the freshwater letdown on the seawater desulfurization of the power plant, a hydrodynamic and transport model of Mike 21 were adopted to simulate tidal flow field and convection diffusion filed.The convection diffusion of HCO3- of spring tide and neap tide was simulated for 12 months, according to the upstream runoff rate measured data.The simulation results show that, the effect of freshwater letdown is bigger during July to September, the concentration of HCO3- is less than 90 mg/L, and the minimum value is 78.32 mg/L.In the other months, the concentration is about 95 mg/L.According to the results above, it could ensure the desulfurization efficiency of electric field seawater and control the construction cost, by changing the number of desulfurization pumps and selecting different sulfur-containing coals.
Study on the seawater quality and its spatial heterogeneity based on principle component analysis: A case study nearshore of Zhuanghe port
Guang-shuai ZHANG, Ji-shun YAN, Quan-jun ZHANG, Quan-min ZHAO, Yue-yin CAI, Bo CHENG, Wei GONG, Hou-lang DUAN
2020, 39(2): 244-252.   doi: 10.12111/j.mes20200212
[Abstract](125) [FullText HTML](140) [PDF 7357KB](15)
Abstract:
In order to reveal the water quality and its spatial pattern nearshore of the north yellow sea, this study evaluated the surface sea water quality in winter of Zhuanghe port.20 sampling sites were setup, and the principle component (PCA) analysis was applied to illustrate the seawater quality, combined with the Krigning spatial interpolation technology to display the spatial heterogeneity.Correlation analysis, regression analysis and redundancy analysis (RDA) were respectively used to reveal the main sources of the pollution and relationship between seawater quality with the geographical position of sampling sites, and to analyze effects of seawater quality on chlorophyll a and dissolved oxygen.Results showed that total inorganic nitrogen of surface seawater was higher than the fourth grade of seawater quality standard, and other water quality parameters all met the first grade.NO3-N, NO2-N and PO4-P were showed significant correlations with each other and with Cd and Cr, illustrating they had similar sources.Inorganic nitrogen, inorganic phosphorus and the related heavy metal elements mainly affected the seawater quality of this area, with a significant spatial heterogeneity along coastline direction, illustrating that seawater quality was also relevant to the utilization way of this area.Coastal water quality calculated by PCA explained 82.67% variation of chlorophyll a and dissolved oxygen.And chlorophyll a was significantly and negatively related with the principal component score which represented the inorganic nitrogen and phosphorus.
Study on oil spill modeling of Jintang harbor in Zhoushan sea
Xi-yu OUYANG, Shu XIN, Bao-lei GENG, Peng ZHAO, Ning GUAN
2020, 39(2): 253-259.   doi: 10.12111/j.mes20200213
[Abstract](120) [FullText HTML](74) [PDF 5182KB](4)
Abstract:
This paper predicts and analyzes the impact of spilled oil slick on the surrounding sea area base on the possible oil spill accident of the Australian live cows processing program in Zhoushan, Zhejiang.A two-dimensional tidal current model of Zhoushan sea area is established using MIKE21 HD module and verified by the measured hydrological data.On this basis, MIKE OS module is used to simulate the spreading, transfer, and weathering processes of the oil slick.Such processes are calculated under different conditions for the oil spill that happened in the channel and the berthing platform.The results show that spreading and transfer of oil slick are related to leakage locations, spill time, current field, wind speed and wind direction.Under the condition of no wind, the movement of oil slick is dominated by flood and ebb, with a maximum sweeping area of 195.74 km2 within 24 hours.Under the condition of prevailing wind direction of SE in summer, oil slick transfers to the open waters of Hangzhou bay.Its spreading range is wider because it is not blocked by coastlines and islands.The maximum sweeping area reaches 209.71 km2 within 24 hours.Under the other condition with unfavorable wind direction of NW, the oil slick piles up along the coastline of the south of Jintang island and surrounding islands with a maximum sweeping area of 131.99 km2 within 24 hours.
Study on oil spill risk assessment of oil production platforms in the East China Sea
Li-cun XU, Hong YANG, Chun-feng WANG
2020, 39(2): 260-267.   doi: 10.12111/j.mes20200214
[Abstract](126) [FullText HTML](383) [PDF 1296KB](2)
Abstract:
The oil spill accident occurred in the East China Sea will have serious impact on environment and economic.It also has great practical significance to evaluate the oil spill risk.According to the current situation of the oil production platforms in the East China Sea, the paper constructs a risk evaluation index system by using AHP (Analytic Hierarchy Process) and evaluates the oil spill risk comprehensively with fuzzy comprehensive evaluation method and Monte Carlo method.Oil spill risk is classified into five grades (minimal, small, medium, large, maximum) represented by (1, 2, 3, 4, 5) respectively.The results show that the oil spill risk level of the oil production platform in the East China Sea is between 1.59~3.06, the average is 2.28, and the overall risk level is medium low.The probability of oil spill risk grade of oil production platform in the East China Sea is 11.37% in the range of 1.59~2.00.The probability of risk rating between 2.00~2.50 is 69.92%.The probability of risk rating between 2.50~3.00 is 18.74%.The probability of risk rating above 3.00 is 0.06%.Among the first class indexes, the geological oil spill takes the biggest risk, and the platform fatigue aging is the most important subdivision factor affecting the oil spill risk grade of oil platforms in the East China Sea, and its sensitivity reached 64.60%.The evaluation method is of scientific significance to the overall risk situation of offshore platform, and the reasonable evaluation can quantitatively evaluate the main influencing factors, in order to enrich the management and decision-making methods for offshore oil platform in China, providing more theoretical basis and technical support.
The measurement of ecology innovation of China's coastal tourism and its influence factors
Dong-dong DING, Fei-xue LI, Lang XU, Man-chun LI, Dong CHEN
2020, 39(2): 268-276.   doi: 10.12111/j.mes20200215
[Abstract](116) [FullText HTML](80) [PDF 3150KB](3)
Abstract:
Research from the perspective of economic society, resource environment and ecology, by improving the set pair analysis (SPA) method in system engineering, and combining the indicator system, the overall level of eco-innovation of coastal tourism and its sub-index in all coastal provinces are comprehensively measured.Based on the evaluation results, the geo-weighted regression model (GWR) is used to analyze the influencing factors of the ecological innovation level of the coastal tourism and its spatial differentiation patterns.As the results show, the overall level of eco-innovation of coastal tourism in coastal regions is relatively low and the spatial distribution shows significant disparity; in terms of its influencing factors, the investment of industrial pollution control, the income of marine scientific research, the proportion of total tourism revenue in the tertiary industry, the total number of tourism enterprises are all positively associated with the level of eco-innovationof coastal tourism, while the total tourism revenue and the total number of tourists are negatively correlated with the level of eco-innovation of coastal tourism; considering its spatial distribution, the influence of the total tourism revenue, the proportion of tourism revenue in the tertiary industry, the marine research funding income and the total number of tourists on the level of ecological innovation increased from south to north.And the influence of the investment in industrial pollution control and the total number of tourism enterprises generally spread to north and south with the eastern part as the core.
Analysis of spatiotemporal variation of sea ice in Hebei offshore waters by satellite remote sensing monitoring
Wen-jia XU, Yong-li XU, Li TIAN
2020, 39(2): 277-282.   doi: 10.12111/j.mes20200216
[Abstract](108) [FullText HTML](110) [PDF 3132KB](4)
Abstract:
Sea ice occurs in offshore waters of Hebei province at different degrees every winter.Real-time continuous monitoring of sea ice changes is of great significance for the formulation of effective measures for disaster prevention and mitigation.The sea ice information in offshore waters of Hebei province of 8 winters from 2010 to 2018 was extracted by using multi-source satellite remote sensing data such as MODIS, HJ-1, GF-1 and GF-4.The spatial and temporal variation characteristics of sea ice were analyzed by taking ice period, severe ice period, maximum ice area, maximum floe ice edge and maximum superposition frequency as statistical indexes.The results showed that the sea ice in offshore waters of Hebei province usually started in mid or late of December, and finally ended in late of February of the following year.The ice period was generally 50~60 days, and severe ice period occurred in late January to early February.In the general ice year, the sea ice usually first appeared in offshore waters of Tangshan and finally ablated in offshore waters of Cangzhou.From 2010 to 2018, the sea ice conditions in the first 3 years were relatively stable and relatively serious.In the last 5 years, the ice conditions changed relatively sharply, with relative light ice year and relative severe ice year almost interval appeared.On the whole, the severity of sea ice conditions showed a downward trend in the monitoring period.
Techniques and Methods
Effect of oil spill stress on carbon and nitrogen stable isotope of Ulva Pertusa
Yu LIU, Yu-xin LIU, Xue-jiao MI, Na LI, Hai-xia WANG
2020, 39(2): 283-287, 314.   doi: 10.12111/j.mes20200217
[Abstract](114) [FullText HTML](98) [PDF 1420KB](0)
Abstract:
In order to study the impact of oil spills on the Ulva Pertusa, one of the major macroalage in the intertidal zone of the coast, this study measured the growth rates, chlorophyll a as well as the carbon and nitrogen stable isotope of U.Pertusa under the stress of the water accommodated fraction (WAF) of 180# fuel oil.At the low WAF concentrations (1.43 mg/L, 2.87 mg/L and 4.30 mg/L), the growth rates of U.Pertusa were higher than the control group, indicating that the growth was promoted.Meanwhile, the contents of chlorophyll a increased, and carbon and nitrogen stable isotopes were enriched.However, at the high WAF concentrations (5.72 mg/L and 7.17 mg/L), the algal growth was inhibited, with the lower growth rates but higher concentrations of chlorophyll a than those in control group.In addition, compared to the control group, U.Pertusa showed the depletion in δ15N and δ13C at the high WAF concentrations.Overall, the carbon and nitrogen stable isotopes were more sensitive to the WAF stress than chlorophyll a for U.Pertusa.The present study indicated that δ15N and δ13C of U.Pertusa were the promising proxies to evaluate the toxicity of oil spill in marine environment.
Effects of different pretreatment drying method on sequentially extracted phosphorus forms in marine sediments
Bin YANG, Ri-zhong LAN, Zhen-jun KANG, Dong-liang LU, Wen-lu LAN, Zhi-ming NING
2020, 39(2): 288-295.   doi: 10.12111/j.mes20200218
[Abstract](111) [FullText HTML](106) [PDF 6517KB](3)
Abstract:
The effects of three different pretreatment drying methods (vacuum freeze-drying, oven-drying and air-drying) on the analysis of phosphorus (P) species and their bioavailability were investigated in five typical surface sediments from the Maowei sea in the northern Beibu Gulf.The long-term pretreatment process of air-drying promoted the microbial degradation and transformation of sedimentary P compounds into inorganic P (IP), resulting in the highest concentrations of IP and total P (TP).The highest levels of organic P (OP) were recorded in freeze-drying samples.Among different IP species, the highest concentrations of exchangeable P (Ex-P) and Fe-bound P (Fe-P) were found in oven-drying and air-drying samples, respectively.The variation trend of the extraction concentration of authigenic apatite P (Ca-P) and detrital P (De-P) using different pretreatment drying methods was not significant due to their stable chemical properties.Compared with the other two methods, freeze-drying could reflect the actual composition characteristics of different P forms in marine sediments, and is an ideal method for sample drying.Thus, this pretreatment seems to be the best drying method.Correlation analysis indicated that, in addition to Ca-P, changes of individual samples did not influence the analytical integrity of Ex-P, Fe-P, De-P and OP in extracted solutions from different pretreatment drying methods.The concentrations of bioavailable P (BAP) in the air-drying samples were higher than those of vacuum freeze-drying and oven-drying but, the single factor analysis of variance showed no significant differences on the evaluation potential BAP in surface sediments of the Maowei sea based on the three pretreatment drying methods.
Dispersive solid-phase extraction followed byultra-high performance liquid chromatography tandem mass spectrometry for determination of 4 kinds of PPCPs residues in aquatic products
Ke HUANG, Xu-feng WANG, Qiang WANG, Dong-hao ZHAO, Hong-liang YANG, Liu-dong LI
2020, 39(2): 296-301.   doi: 10.12111/j.mes20200219
[Abstract](112) [FullText HTML](149) [PDF 1786KB](0)
Abstract:
A generic, reliable and sensitive multiresidue analytical method was developed and validated for determination of 2 classes of PPCPs including sulfamethoxazole (SMZ), trimethoprim (TMP), tylosin (TYL) and triclocarban (TCC) in aquatic products using dispersive solid-phase extraction (dSPE) method and ultra-high performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS).Samples were extracted with acetonitrile, and then the extracts were purified by dispersive solid-phase extraction using Alumina N-neutral as adsorbent.The purified extraction was dried under nitrogen gas in water bath, and re-dissolved in 20% acetonitrile-5 Mm ammonium acetate water solution (containing 0.1% formic acid) and then centrifuged and filtered before UPLC-MS/MS analysis.Excellent chromatography separation was performed on a Waters BEH C18 column under gradient elution condition utilizing acetonitrile and 5Mm ammonium acetate solution as mobile phases.Qualitative and quantitative analysis of target compounds was accomplished simultaneously in multiple-period multiple reaction monitor mode (multiple-period MRM).The correlation coefficients of linear calibration curves were over 0.9984 in the corresponding concentration range.The limits of detection (LODs) and quantification (LOQs) were in the range of 0.1×10-9~1.0×10-9 and 0.2×10-9~2.0×10-9, respectively.The recoveries of spiked samples were between 71.8% and 96.5% with relative standard deviation (RSD) less than 9.8%.The developed method can be applied to the residues determination of 4 PPCPs in aquatic samples.
Key technologies and applications of hydro-observation real-time sharing
Jing XIE, Jiang CHANG, Jia-wen SUN, Xiang-li QI, Dong-hua FAN, Song-lin GUO
2020, 39(2): 302-308.   doi: 10.12111/j.mes20200220
[Abstract](140) [FullText HTML](103) [PDF 4495KB](3)
Abstract:
The hydro-observation real-time sharing system, synchronizing the surveying equipment, sensor, net communication and computer technology, is developed.In this paper, how to efficiently, accurately, and continuously gather and instantly share ocean hydrological data was studied on.The key techniques of hydro-observation real-time sharing, including construction of a remote surveying subsystem, mathematical modeling on data processing and intelligent analysis, and construction of a real-time dynamic sharing subsystem were detailed.All-weather, ongoing and unmanned observation, real-time and stable online data transmission, and dynamic sharing were obtained.This system has successfully applied in Tianjin Port for environment monitoring and Huanghua Port for security navigation.
Numerical simulation of seawater exchange based on flow function
Yuan-ning WANG, Yan-ni HAO, Wan-yu ZHAO, Han-jun WU, Jian-guo LIN
2020, 39(2): 309-314.   doi: 10.12111/j.mes20200221
[Abstract](167) [FullText HTML](120) [PDF 4880KB](6)
Abstract:
The water exchange capacity is only related to the fluidity of water.At present, most of the researches on water exchange rely on the concentration of indicator material to calculate water exchange rate and exchange time.But the results cannot reflect the exchange capacity of seawater accurately.Taking a T-shaped region as an example, the paper proposes a calculation method of water exchange based on the flow function.First, obtaining a two-dimensional shallow water equation with the average depth of water based on the integral of the three-dimensional continuous equation along the water depth.By solving the equation, data such as the velocity and depth are obtained.Then making contour map corresponding to flow function, which is obtained by integrating the two-dimensional shallow water equation.It can be clearly seen from the contour map that more than half of the water in the simulated area can be exchanged out of the area.Respectively, it is calculated that in the front and back half of the model the seawater exchange rates are 0.6396 and 0.6465.The result shows that it is simple and feasible to evaluate the water exchange capacity of a certain area by using the numerical simulation method based on the flow function.The contour map can directly reflect the water exchange capacity.
Review
Studies on the correlation between diatoms and colony formation of Phaeocystis
Jun-rong LIANG, Qi LIU, Peng-yu JI, Lu HUANG, Chang-ping CHEN, Ya-hui GAO
2020, 39(2): 315-320.   doi: 10.12111/j.mes20200222
[Abstract](147) [FullText HTML](92) [PDF 1208KB](4)
Abstract:
Phaeocystis has attracted much attention because of its high frequency of causing a large area of harmful algal blooms by colonies form.Therefore, the colony formation of Phaeocystis plays an important role in the ecological competition and the occurrence and development of Phaeocystis bloom.More and more studies have shown that diatoms are closely related to the colony formation of Phaeocystis.Here, the progress on the studies of the correlation between diatom and colony formation of Phaeocystis was reviewed.The detailed information includes the discovery of the adhesion phenomenon between diatoms and the colony of Phaeocystis; the phenomenon of diatoms involved in the algae life history of Phaeocystis; the role of diatoms in promoting colony formation of Phaeocystis; species selectivity associated with Phaeocystis when it attach to diatoms species; and the relationship of coexistence of diatom and Phaeocystis.All the progress would provide us an understanding of the ecological role and significance of diatoms involving in the occurrence and development of Phaeocystis.
Research advances in microbial effects in marine oxygen minimum zones
Yan-tao WANG, Quan-rui CHEN, Hong-xia MING, Lin-sheng SONG, Jing-feng FAN
2020, 39(2): 321-328.   doi: 10.12111/j.mes20200223
[Abstract](156) [FullText HTML](116) [PDF 2019KB](10)
Abstract:
Oxygen Minimum Zones (OMZs) were special habitats with very low dissolved oxygen content in the ocean.They were widely distributed in oceans or offshore areas around the world.Low level oxygen could damage ecosystem functions and affect economic development along the coast.In severe cases, they could lead to species extinction.Due to the low oxygen, there was almost no multicellular organism in the region, the internal elemental circulation was almost driven by microorganisms entirely, so the position of microorganisms was crucial.This paper first briefly described the formation mechanism of OMZs and the factors affected the formation and development of them, and then reviewed the unique respiratory patterns of microbes in order to adapt to the environmental change.The most direct impact of OMZs on microorganisms was that they formed community structures and functional activities different from the oxygen-rich environment, and this part was summarized as microbial effects.The study of microorganisms in OMZs was complex and challenging, at the same time, it provided a special way for us to understand the adaptability, diversity and evolution of microorganisms in the environment better.It had a great significance to improve our understanding of biogeochemical cycle.
Research of the effect of heat transfer coefficients on thermal effluent
XU Bing-feng, ZHANG Ling-ling
2015, 34(1): 81-85.   doi: 10.13634/j.cnki.mes20150115
[Abstract](2432) [PDF 1206KB](33)
Environmental quality of petroleum hydrocarbons in the surface sediment of the oil and gas exploration zone in the central of Bohai Sea
LIU Ming, ZHANG Ai-bin, LIAO Yong-jie, FAN De-jiang
2015, 34(1): 12-16.   doi: 10.13634/j.cnki.mes20150103
[Abstract](2357) [PDF 1172KB](14)
Phylogenetic relationship of four Alexandrium tamaranse/catenella isolates from Southeast Chinese costal waters using rDNA sequences
WANG Zhao-hui, MA Chang-jiang, XU Zhong-neng
2015, 34(1): 1-5,35.   doi: 10.13634/j.cnki.mes20150101
[Abstract](2608) [PDF 1239KB](8)
Prediction method of Chlorophyll-a concentration in seawater based on extreme learning machine regression
ZHANG Ying, GAO Qian-qian
2015, 34(1): 107-112.   doi: 10.13634/j.cnki.mes20150119
[Abstract](2545) [PDF 1366KB](17)
Effects of short-term weathering on the N-alkanes fraction of crude oils in Bohai Sea
QIAN Guo-dong, LI Ming, QU Liang, REN Xu-he, CHI Jie
2015, 34(1): 23-28.   doi: 10.13634/j.cnki.mes20150105
[Abstract](2547) [PDF 1311KB](21)
Effects of nitrogen sources on the growth and interspecific competition of Phaeodactylum tricornutum, Dunaliella salina and Karenia mikinotoi
LIANG Ying, SUN Ming-hui, LIU Chun-qiang, TIAN Chuan-yuan
2015, 34(1): 29-35.   doi: 10.13634/j.cnki.mes20150106
[Abstract](2448) [PDF 1290KB](19)
Analysis of the Liaohe Estuary coastline changes basing on the remote sensing image in the past thirty years
WANG Jian-bu, ZHANG Jie, CHEN Jing-yun, SUN Wei-fu, MA Yi
2015, 34(1): 86-92.   doi: 10.13634/j.cnki.mes20150116
[Abstract](2503) [PDF 1281KB](16)
Variation of landscape pattern in Jiangsu Yancheng coastal wetland 1983~2013
LIU Li-wei, ZHANG Yin-long, WANG Hui, SHI Jian-qiao, PI Yu-fei
2015, 34(1): 93-100.   doi: 10.13634/j.cnki.mes20150117
[Abstract](2590) [PDF 1214KB](13)
Study on the judicial authentication of marine environmental pollution damage and its evidentiary effect
LI Chen, ZHAO Yu-hui, SUN Pei-yan
2015, 34(1): 136-141.   doi: 10.13634/j.cnki.mes20150124
[Abstract](2629) [PDF 1089KB](39)
Data standardization method for damage assessment of living marine resources based on GIS and expert evaluation method
LIU Xiu-ze, LI Yi-ping, WANG Ai-yong, YU Xu-guang, WANG Bin, GUO Dong, DONG Jing
2015, 34(1): 101-106.   doi: 10.13634/j.cnki.mes20150118
[Abstract](2397) [PDF 1285KB](17)
A primary study on the energy flow in the ecosystem of fishery ecological restoration area in HaizhouBay,Lianyungang
ZHANG Shuo, WANG Teng, FU Xiao-ming, ZHANG Hu
2015, 34(1): 42-47.   doi: 10.13634/j.cnki.mes20150108
[Abstract](2545) [PDF 1196KB](11)
Marine industry competition strategy analysis in coastal provinces in China based on miche theory
YUAN Qing-min, QIN Cong-cong, YANG Rui, NING Ning-ning
2015, 34(1): 126-130.   doi: 10.13634/j.cnki.mes20150122
[Abstract](2470) [PDF 1095KB](25)
Spatial and temporal variation and potential ecological risk evaluation of heavy metals in surficial sediments from the adjacent waters of the Oujiang Estuary
FENG Wei-hua, ZHU Gen-hai, ZHENG Fang-qin, WU Jia-lin, ZHOU Qing-song
2015, 34(1): 36-41.   doi: 10.13634/j.cnki.mes20150107
[Abstract](2434) [PDF 1285KB](13)
Identification of several fish eggs and larvae by DNA barcoding in Xiamen Water
ZHOU Mei-yu, CHEN Xiao, YANG Sheng-yun
2015, 34(1): 120-125,135.   doi: 10.13634/j.cnki.mes20150121
[Abstract](2546) [PDF 1280KB](19)
Design of the seawater quality spatial evaluation system based on multi-source data
LI Bing-nan, YNAG Jian-hong, JIANG Xue-zhong, WU Tong
2015, 34(1): 113-119.   doi: 10.13634/j.cnki.mes20150120
[Abstract](2501) [PDF 1169KB](14)
The seasonal variation of tetrodotoxin in Amoya caninus
ZHU Guo-ping, LIAO Jian-meng, WU Bin, YE Ning, LI Zhai-wang
2015, 34(1): 66-69,80.   doi: 10.13634/j.cnki.mes20150112
[Abstract](2556) [PDF 1176KB](11)
Discussion on the jurisprudential basis of the oil pollution compensation fund
WANG Ting-ting, YU Shi-hui
2015, 34(1): 131-135.   doi: 10.13634/j.cnki.mes20150123
[Abstract](2199) [PDF 1088KB](12)
The source and ecological risk assessment of Polycyclic Aromatic Hydrocarbons (PAHs) of surficial sediment in Laizhou Bay
ZHANG Ming-liang, LI Hui, XU Ying-jiang, DENG Xu-xiu, FU Xiang, LV Zhen-bo
2015, 34(1): 6-11.   doi: 10.13634/j.cnki.mes20150102
[Abstract](2374) [PDF 1135KB](14)
Discussion of the change trend of the seagrass beds in the east coast of Hainan Island in nearly a decade
CHEN Shi-quan, WANG Dao-ru, WU Zhong-jie, ZHANG Guang-xing, LI Yuan-chao, TU Zhi-gang, YAO Hai-jun, CAI Ze-fu
2015, 34(1): 48-53.   doi: 10.13634/j.cnki.mes20150109
[Abstract](2731) [PDF 1179KB](14)
Calculating the probability of oil spill at port oil reserve base
HUANG Yan-pin, LI Ying, ZHOU Xin, ZHANG Zhi-da, LIU Bing-xin, LIU Yu
2015, 34(2): 313-316.   doi: 10.13634/j.cnki.mes20150227
[Abstract](1924) [PDF 1144KB](13)
Seasonal changes of phytoplankton in Luan Estuary-Dapu Estuary in spring and summer
ZHANG Yue-ming, WANG Yu-liang, YANG Yang, HAN Xiao-qing, ZHANG Jian-da, GAO Wei-ming
2015, 34(1): 70-75.   doi: 10.13634/j.cnki.mes20150113
[Abstract](2479) [PDF 1351KB](4)
Distributions and risk evalutionof heavy metals in Dalian coastal areas
LI Wen-jun, ZONG Hu-min, YUAN Xiu-tang, WANG Li-jun, ZHANG Zhi-feng, LIU Guang-yuan
2015, 34(4): 508-512.   doi: 10.13634/j.cnki.mes20150406
[Abstract](1641) [PDF 1115KB](12)
Marine environmental risk assessment of the defense body
MA Qiang, LIN Jian-guo, LI Guang-zheng, YU Dong, SHEN Guang-yu
2015, 34(1): 142-146,155.   doi: 10.13634/j.cnki.mes20150125
[Abstract](2071) [PDF 1312KB](29)
Influence of single and combined cadmium and benzo(a)-pyrene on SOD, CAT activities and MDA content in the Polychaete Perinereis aibuhitensis
WANG Li-li, WANG Yi-nan, SONG Ying-ying, YAO Xiang, LI Yan
2015, 34(1): 17-22.   doi: 10.13634/j.cnki.mes20150104
[Abstract](2801) [PDF 1195KB](10)
The degradation of lignin and its effect on the application of lignin as an indicatorof terrestrial organic matter
QI Li-ming, ZHANG Ting, LAN Hai-qing, SHI Xiao-mei, FAN Ping-ping
2015, 34(1): 147-155.   doi: 10.13634/j.cnki.mes20150126
[Abstract](2415) [PDF 1184KB](21)
The progress of solid surface engineering on anti-biofouling
LI Ming-gan, LI Yan, ZHANG Fan, ZHU Jian-hang
2015, 34(1): 156-160.   doi: 10.13634/j.cnki.mes20150127
[Abstract](2225) [PDF 1121KB](26)
Numerical simulation of petroleum hydrocarbons transport in Bohai Sea and the influences on water quality
SHANG Xue-mei, LOU An-gang, SUN Xue-juan, SUN Yue
2015, 34(1): 58-65.   doi: 10.13634/j.cnki.mes20150111
[Abstract](2104) [PDF 1458KB](4)
Carbon stable isotopic fractionation associated with biosynthesis of fatty acids by marine microalgae under the stress of oil spills
LIU Yu, YAO Jing-yuan, LI Ying, FENG Tian-shu
2015, 34(1): 54-57,65.   doi: 10.13634/j.cnki.mes20150110
[Abstract](2131) [PDF 1173KB](6)
Stability prediction of inorganic nitrogen in water environment of Bohai Sea
LI Mian, LAN Dong-dong, LIANG Bin, ZHANG Hao, BAO Chen-guang, XU Yan, YU Chun-yan, MA Ming-hui
2015, 34(2): 161-165.   doi: 10.13634/j.cnki.mes20150201
[Abstract](1933) [PDF 1447KB](18)
The impact of rivers on the Chl a concentrations in coastal surface waters of the Laizhou Bay
ZHOU Feng-xia, GAO Xue-lu, ZHUANG Wen, ZHANG Jin-feng, LI Pei-miao
2015, 34(2): 184-189.   doi: 10.13634/j.cnki.mes20150205
[Abstract](2251) [PDF 1184KB](16)
Spatial distribution of marine invasive species in the large marine ecosystems of China
BAI Jia-yu, MA Xue-guang
2015, 34(3): 347-353.   doi: 10.13634/j.cnki.mes20150305
[Abstract](1909) [PDF 1145KB](11)
Review of the research on the classification of two types of ENSO events
DONG Yu-jia, MENG Xiang-feng
2015, 34(3): 473-480.   doi: 10.13634/j.cnki.mes20150326
[Abstract](1496) [PDF 1231KB](12)
Temporal-spatial characteristics and ecological risk assessment of pollutants in surface sediment of Jinzhou Bay
CHEN Zhao-lin, SUN Qin-bang, BAO Ji-ming, ZHAO Su-fang, WANG Yang, WANG Bing
2015, 34(4): 494-498.   doi: 10.13634/j.cnki.mes20150403
[Abstract](1532) [PDF 1239KB](17)
Characteristics of the green tide disaster of east Shandong Peninsula offshore
SONG Xiao-li, HUANG Rui, YUAN Ke-lei, ZHAO Yu-hui, WEN Ruo-bing, ZHANG Hong-liang
2015, 34(3): 391-395.   doi: 10.13634/j.cnki.mes20150312
[Abstract](1571) [PDF 1216KB](16)
Analysis on the changes of continental coastline tortuosity in China recent 20 years
ZHANG Yun, ZHANG Jian-li, JING Xin-di, SONG De-rui
2015, 34(1): 76-80.   doi: 10.13634/j.cnki.mes20150114
[Abstract](2064) [PDF 1088KB](11)
Research progress on toxicoproteomics in fish: Using marine medaka and zebrafish as models
ZHANG Ling
2015, 34(4): 616-621.   doi: 10.13634/j.cnki.mes20150426
[Abstract](1851) [PDF 1100KB](9)
Ecological characteristics of phytoplankton community structure in Northwest Hainan coastal areas
XU Shan-nan, LIN Hua-jian, GONG Yu-yan, LI Chun-hou, CHEN Zuo-zhi
2015, 34(5): 661-668,685.   doi: 10.13634/j.cnki.mes20150504
[Abstract](1640) [PDF 1261KB](8)
Working principle and improvement of weir technology in recovering oil spill
ZHANG Yin-dong, YANG Jie, ZHANG Xing-ming
2015, 34(2): 290-293.   doi: 10.13634/j.cnki.mes20150223
[Abstract](1811) [PDF 1168KB](14)
Effect of oil spill dispersant on the oil fingerprints investigated by variance analysis
WANG Qiao-min, SUN Bing, YAN Zhi-yu, LIU Hui, ZHU Xiao-mei, LIU Qin, YU Ying
2015, 34(4): 587-592.   doi: 10.13634/j.cnki.mes20150420
[Abstract](1574) [PDF 1097KB](2)
Research on evaluation criteria construction and empirical study of the impacts of the reclamation on marine ecosystems——taking jiaozhou bay as an example
Zong-en HU, Miao WANG
2016, 35(3): 357-365.   doi: 10.13634/j.cnki.mes20160306
[Abstract](1907) [FullText HTML](390) [PDF 1202KB](390)
Diurnal change of soil carbon flux of island forests:A case study in Beichangshan Island
QIAO Ming-yang, SHEN Cheng-cheng, SHI Hong-hua, DING De-wen, GUO Zhen
2015, 34(3): 377-383.   doi: 10.13634/j.cnki.mes20150310
[Abstract](1600) [PDF 1258KB](7)
Practice and consideration of cooperative action for marine environmental monitoring informatization system
LI Yi-hong, XU Ren, SONG Chen-yao
2015, 34(4): 578-581.   doi: 10.13634/j.cnki.mes20150418
[Abstract](1543) [PDF 1136KB](17)
Acute toxic effects of crude oil pollution on Nauplius Ⅱ of Chthamalus challengeri
QI Lei-lei, SHA Jing-jing, TANG Xue-xi
2015, 34(3): 367-372.   doi: 10.13634/j.cnki.mes20150308
[Abstract](1638) [PDF 1260KB](7)
Responses of marine organisms and ecosystems to ocean acidification
ZHANG Jin-feng, GAO Xue-lu, ZHOU Feng-xia, LI Pei-miao, ZHUANG Wen
2015, 34(4): 630-640.   doi: 10.13634/j.cnki.mes20150428
[Abstract](1741) [PDF 1165KB](9)
A public questionnaire survey of oil spill in 7.16 Dalian New Port
GUAN Chun-jiang, ZHANG Fan, LIN Yong, FAN Jing-feng
2015, 34(2): 317-320.   doi: 10.13634/j.cnki.mes20150228
[Abstract](1979) [PDF 1218KB](9)
Research on island protection planning based on ecosystem
ZHANG Zhi-wei, ZHAO Jin-xia, FENG Ai-ping, WANG Jing
2015, 34(2): 300-306.   doi: 10.13634/j.cnki.mes20150225
[Abstract](1764) [PDF 1163KB](16)
Nitrogen and phosphorus absorption capability of Sargassummcclurei
ZHENG Xiao-ting, HUANG Xiang-hu, LI Chang-ling, YU Dong-xia
2015, 34(3): 396-401.   doi: 10.13634/j.cnki.mes20150313
[Abstract](1397) [PDF 1224KB](8)
Spatial and temporal variations of turbidity in the East China Seas derived from MODIS satellite data
HU Jing-wen, CHEN Shu-guo, ZHANG Ting-lu, ZHANG Guo-peng
2015, 34(4): 564-569.   doi: 10.13634/j.cnki.mes20150416
[Abstract](2189) [PDF 1332KB](8)
The evolution and driving mechanism of landscape pattern in islands during rapid urbanization: A case study of Dachangshan Island
MA De-ming, SHI Hong-hua, LIU Shi-hao, TIAN Zi-wen
2015, 34(2): 261-267.   doi: 10.13634/j.cnki.mes20150218
[Abstract](1681) [PDF 1189KB](17)
Comprehensive method for determining the weights of vulnerability assessment indexes on islands and the coastal zone based on the AHP weight method and entropy weight method
LIU Da-hai, GONG Wei, XING Wen-xiu, LI Xiao-xuan, MA Xue-jian, Yu Ying
2015, 34(3): 462-467.   doi: 10.13634/j.cnki.mes20150324
[Abstract](1608) [PDF 1165KB](12)
Effects of benzo[a]pyrene exposure on biomarkers in Exopalaemon carinicauda liver
LI Lei, JIANG Mei, SHEN Xin-qiang, WANG Yun-long, WU Qing-yuan, NIU Jun-xiang, XU Gao-peng
2015, 34(4): 513-518.   doi: 10.13634/j.cnki.mes20150407
[Abstract](1491) [PDF 1258KB](3)
Toxicity effectofheavy metals on Photobacteriumphosphoreum and the species sensitivity comparison with other marine organisms
LI Zhen, MIAO Jing-jing, PAN Lu-qing
2015, 34(2): 176-183.   doi: 10.13634/j.cnki.mes20150204
[Abstract](1918) [PDF 1255KB](18)
Distribution patterns and ecological assessment on heavy metals in the surface sediments of Laizhou Bay
ZHENG Yi-min, GAO Mao-sheng, LIU Sen, ZHAO Jin-ming, GUO Fei, WANG Chang-ming
2015, 34(3): 354-360.   doi: 10.13634/j.cnki.mes20150306
[Abstract](1699) [PDF 1377KB](10)
Differences between the Northwest Pacific tropical cyclone genesis location of two kinds of El Nio Modoki in autumn
ZHU Sai-zhi, MENG Xiang-feng
2015, 34(2): 255-260.   doi: 10.13634/j.cnki.mes20150217
[Abstract](1990) [PDF 1384KB](16)
Variation trends of nutrient in Qinhuangdao coastal area based on statistical method
WU Tong, CHEN Yan-long, HUANG Feng-rong, MA Yu-juan, BAO Chun-xia
2015, 34(4): 499-502,523.   doi: 10.13634/j.cnki.mes20150404
[Abstract](1645) [PDF 2033KB](6)
Phytoplankton diversity distribution and its influence factors in southern waters of Miaodao Archipelago in summer
HUANG Feng-hong, SHI Hong-hua, ZHENG Wei, WANG Yuan-yuan, HUO Yuan-zi, LI Jie
2015, 34(4): 530-535.   doi: 10.13634/j.cnki.mes20150410
[Abstract](1679) [PDF 1212KB](7)
Spatial and temporal distribution of PCBs in the reclamation soils at Changjiang Estuary
ZHU Yun-juan, DING Yong-sheng, TONG Sheng, HU Chao-hua, ZHU Shi-mao, SU Peng-hao, SUN Dan, LI Yi-fan
2015, 34(2): 274-278.   doi: 10.13634/j.cnki.mes20150220
[Abstract](1708) [PDF 1227KB](17)
Source apportionment of PAHs in surface sediments from Bohai Sea and adjacent area
LI Jia-fu, LIU Shao-peng, LIU Xiang-min, MA Qian-yao, HAN Bin, LI Xian-guo
2015, 34(3): 337-342,353.   doi: 10.13634/j.cnki.mes20150303
[Abstract](1132) [PDF 2027KB](12)
Distribution characteristics and environmental significance of carbon, nitrogen and phosphorus in core sediments of Daya Bay
HE Tong, YANG Wen-feng, XIE Jian, YU Han-sheng
2015, 34(4): 524-529.   doi: 10.13634/j.cnki.mes20150409
[Abstract](2062) [PDF 1189KB](4)
Strategy of moral hazard controlling in marine disaster insurance market
ZHENG Hui, WANG Chun-yang
2015, 34(4): 536-539,557.   doi: 10.13634/j.cnki.mes20150411
[Abstract](1579) [PDF 1884KB](10)
Spectral discrimination and separable feature lookup table of typical vegetation species in Yellow River Delta wetland
REN Guang-bo, ZHANG Jie, MA Yi
2015, 34(3): 420-426.   doi: 10.13634/j.cnki.mes20150317
[Abstract](1817) [PDF 1382KB](9)
Continuous underway measurements of sea surface O2/Ar and pCO2 by membrane inlet mass spectrometry
Wen-jing ZHENG, Yu HAN, Chuan QIN, Gui-ling ZHANG
2016, 35(4): 611-617.   doi: 10.13634/j.cnki.mes20160421
[Abstract](1332) [FullText HTML](333) [PDF 1392KB](333)
Occurrence and source of polycyclic aromatic hydrocarbon (PAHs) in the surficial sediment of the Bohai Sea
GUO Wen, XUE Wen-ping, YAO Wen-jun, XU Heng-zhen, LIN Zhong-sheng, YAO Zi-wei, MA Xin-dong
2015, 34(3): 330-336.   doi: 10.13634/j.cnki.mes20150302
[Abstract](1301) [PDF 1338KB](9)
Evaluation and risk prediction of eutrophication in Bohai Sea
YU Chun-yan, LI Mian, BAO Chen-guang, LAN Dong-dong, XU Yan, MA Ming-hui
2015, 34(3): 373-376.   doi: 10.13634/j.cnki.mes20150309
[Abstract](1775) [PDF 1243KB](8)
Precise determination of 224Ra and 223Ra in seawaters by RaDeCC
GU He-quan, DU Jin-zhou, WU Mei-gui, JI Tao, ZHANG Jing
2015, 34(4): 570-577.   doi: 10.13634/j.cnki.mes20150417
[Abstract](1704) [PDF 1244KB](29)
Distribution of urea section and its affecting factors in red-tide-frequent-occurrence area in spring
SU Ying, JIANG Cong-cong, SHI Xiao-yong, ZHAO Yu-ting, LIANG Sheng-kang, WANG Xiu-lin
2015, 34(2): 171-175.   doi: 10.13634/j.cnki.mes20150203
[Abstract](1872) [PDF 1282KB](21)
Pollution characteristics and source analysis of polycyclic aromatic hydrocarbons(PAHs) in surface sediment of Dalian
LIU Xian-jie, HONG Wen-jun, WANG Luo, JIA Hong-liang, LI Yi-fan
2016, 35(2): 252-255.   doi: 10.13634/j.cnki.mes20160217
[Abstract](2670) [PDF 1998KB](10)
Bioremediation of the pathogenic bacteria pollution in the sea cucumber Stichopus japonicus-cultured water system with sponge Hymeniacidon perlevis
LENG Xiao-fei, ZHANG Xi-chang, ZHANG Wei, XU Shu-fen
2015, 34(2): 166-170,189.   doi: 10.13634/j.cnki.mes20150202
[Abstract](1659) [PDF 1243KB](24)
Assessment of the reclamation resource potential based on ecosystem function in Dalian City
LIU Shu-xi, ZHANG Hao, ZHANG Peng-ji, SUN Shu-yan, SUN Qin-bang, YAN Ji-shun
2015, 34(2): 194-198.   doi: 10.13634/j.cnki.mes20150207
[Abstract](1832) [PDF 1090KB](24)
Acute toxicity and accumulation of Mn ions with different valences on larval Apostichopus japonicas
XING Hong-yan, MA Yuan-qing, LI Bin, LI Jia-hui, LIU Xiao-bo, LIU Ai-ying, JIN Yang, BAI Yan-yan, ZHANG Juan, HE Xin
2015, 34(2): 251-254,306.   doi: 10.13634/j.cnki.mes20150216
[Abstract](1633) [PDF 1233KB](18)
Toxic effect of nonylphenol (NP) on the mantle of Paphia undulate
GONG Xiu-yu, HUANG Zhi-fei, WANG He-wei, ZHANG Zhe, MA Sheng-wei, CHEN Hai-gang, CAI Wen-gui
2015, 34(2): 234-239.   doi: 10.13634/j.cnki.mes20150213
[Abstract](1893) [PDF 1274KB](13)
Study on the corrosion effect of ballast tank caused by ballast water treatment of hydroxyl radical
CHEN Cao, CHENG Chao, BAI Min-dong, ZHANG Zhi-tao, MENG Xiang-ying
2015, 34(4): 582-586.   doi: 10.13634/j.cnki.mes20150419
[Abstract](1580) [PDF 1133KB](9)
Purification of Eucheuma gelatinae on nitrogen and phosphorus and effect on the level of chlorophyll a in eutrophic seawater
LI Chun-qiang, YU Xiao-ling, WANG Shu-chang, PENG Ming
2015, 34(2): 190-193,239.   doi: 10.13634/j.cnki.mes20150206
[Abstract](1971) [PDF 1221KB](16)
Distribution and composition of dissolved amino acids in the East China Sea and the Yellow Sea during spring
WANG Peng, CHEN Yan, YANG Gui-peng, WANG Qi
2015, 34(2): 217-224.   doi: 10.13634/j.cnki.mes20150211
[Abstract](1820) [PDF 1452KB](20)
Historical changes of the length and fractal dimension of Chinese coastline since 1990
ZHANG Yun, ZHANG Jian-li, JING Xin-di, SONG De-rui, ZHAO Jian-hua
2015, 34(3): 406-410.   doi: 10.13634/j.cnki.mes20150315
[Abstract](1386) [PDF 1145KB](19)
Effects of temperature,light intensity and nutrient condition on the growth and hemolytic activity of six species of typical ichthyotoxic algae
CAO Jie-ru, HUAN Qing-liu, WU Ni, JIANG Tian-jiu
2015, 34(3): 321-329.   doi: 10.13634/j.cnki.mes20150301
[Abstract](1471) [PDF 1593KB](10)
Optimal coupled inversion for multi-parameter of jet in flowing ambient fluid
LI Ming-chang, ZHANG Guang-yu, SI Qi, LIANG Shu-xiu, SUN Zhao-chen
2015, 34(3): 447-450.   doi: 10.13634/j.cnki.mes20150321
[Abstract](1406) [PDF 1161KB](7)
Partition assessment of water environment quality of Ma'an Archipelago
HU Yi-feng, JIANG Hong, LIU Tao, JIN Jing-lin, LI Wei-ding, XU Ling-yan
2015, 34(2): 240-244.   doi: 10.13634/j.cnki.mes20150214
[Abstract](1694) [PDF 1110KB](17)
The application of high density resistivity method to analysis the impact of tide on water table fluctuation in coastal aquifer
SU Qiao, PENG Chang-sheng, XU Xing-yong, FU Teng-fei, YAO Jing
2015, 34(2): 286-289.   doi: 10.13634/j.cnki.mes20150222
[Abstract](1696) [PDF 1136KB](10)
Distributions and sea-to-Air fluxes of volatile halocarbons in the Bohai Sea and northern Yellow Sea
LIU Qiu-lin, HE Zhen, YANG Gui-peng
2015, 34(4): 481-487.   doi: 10.13634/j.cnki.mes20150401
[Abstract](1588) [PDF 1356KB](6)
The preliminary study of single-cell PCR analysis of marine Dinoflagellates
ZHANG Qi, LIU Yong-jian, LIU Gui-ze
2015, 34(4): 611-615.   doi: 10.13634/j.cnki.mes20150425
[Abstract](1680) [PDF 1312KB](4)
Composition, distribution and source of N-alkanes in surface sediments from the coast of East China Sea
Feng LI, Gang XU, Xing-liang HE, Li-lei CHEN, jiang-tao WANG
2016, 35(3): 398-403.   doi: 10.13634/j.cnki.mes20160312
[Abstract](1771) [FullText HTML](367) [PDF 3058KB](367)
Eco-chemical factor evaluation among different types of wetlands on Qi'ao Island, Zhuhai
Shen-yu MIAO, Lian-di LONG, Wen-qin TAO, Qing-chang ZENG, Wei-lin CHEN, Jian-hui CHEN, Hou-lin WANG
2016, 35(5): 670-677.   doi: 10.13634/j.cnki.mes20160506
[Abstract](1237) [FullText HTML](346) [PDF 1638KB](346)
Dynamic analyses of early development and gather of green macroalgae in 2012
LI Yue-song, XIAO Wen-jun, YANG Hong, HU Song, PAN Ling-zhi
2015, 34(2): 268-273.   doi: 10.13634/j.cnki.mes20150219
[Abstract](1651) [PDF 1394KB](10)
Application of eutrophication index in the coastal waters of China
HUANG Ya-nan, WU Meng-meng
2016, 35(2): 316-320.   doi: 10.13634/j.cnki.mes20160228
[Abstract](1841) [PDF 1172KB](27)
Effect of crude oil dispersion on carbon and nitrogen stable isotopic composition of Nitzschia closterium
LIU Yu, LI Ying, WANG Xiao-qi, WANG Hai-xia, HAN Jun-song
2015, 34(4): 503-507.   doi: 10.13634/j.cnki.mes20150405
[Abstract](1612) [PDF 1231KB](4)
Determination of trichlorobenzenes in sea water by dispersive liquid-liquid microextraction-gas chromatography/mass method
FENG Xue-fang, YE Ran, XI Xiao-qing, SHEN Hao-yu, XIA Qing-hua
2015, 34(2): 307-312.   doi: 10.13634/j.cnki.mes20150226
[Abstract](1672) [PDF 1212KB](11)
Typical island landscape ecological network establishmenta case study of Chongming Island
CHI Yuan, SHI Hong-hua, FENG Ai-ping
2015, 34(3): 433-440.   doi: 10.13634/j.cnki.mes20150319
[Abstract](1600) [PDF 1255KB](5)
Capacity of Heterosigma akashiwo to utilize organic nitrogen
WANG Zhao-hui, YANG Xue, LIANG Yu
2015, 34(3): 343-346.   doi: 10.13634/j.cnki.mes20150304
[Abstract](1054) [PDF 1179KB](9)
Application of electric conductivity method in seawater intrusion and soil salinization
ZHANG Yi-hui, WEI Qing-fei, WANG Yu-guang, WANG Chuan-jun
2015, 34(4): 593-595.   doi: 10.13634/j.cnki.mes20150421
[Abstract](1496) [PDF 1130KB](10)
Experimental investigation of nano-polypropylene fiber grafted by UV radiation as sorbent materials for oil spills
KOU Xi-yuan, WANG Jing, WANG Wen-hua, QIU Jin-quan, ZHANG Yu-shan
2015, 34(4): 519-523.   doi: 10.13634/j.cnki.mes20150408
[Abstract](1554) [PDF 1142KB](6)
Effects of DEHP on embryonic development and DNA damage of Pinctada maetensii
ZHAO Chun-feng, DIAO Xiao-ping, CAO Jia, LI Ping, ZHENG Peng-fei, SONG Qin-qin, ZHOU Hai-long, WANG Hai-hua
2015, 34(4): 546-552.   doi: 10.13634/j.cnki.mes20150413
[Abstract](1632) [PDF 1259KB](6)
Some countermeasures on marine nuclear accident emergency monitoring and environment assessment
XIE Jun-jian, ZHOU Peng, CAI Jian-dong, FANG Hong-da, LI Dong-mei, HUANG Chu-guang, CAI Wei-xu, CHEN Jia-hui, TANG Quan
2015, 34(4): 622-629.   doi: 10.13634/j.cnki.mes20150427
[Abstract](1746) [PDF 1112KB](7)
Cumulative effects of topography change on waterway's hydrodynamic along the southern coast of Hangzhou Bay
LU You-peng, LIANG Shu-xiu, SUN Zhao-chen, CONG Pi-fu
2015, 34(3): 384-390.   doi: 10.13634/j.cnki.mes20150311
[Abstract](1415) [PDF 1730KB](14)
Effects of pH limitation on population growth,nutrient uptake and photosynthesis physiological processes of Karenia mikimotoi
WANG Yue, SHEN Ang-lu, ZHAO Shi-ye, ZHU Li-xin, SONG Shu-zhen, LI Dao-ji
2015, 34(4): 488-493.   doi: 10.13634/j.cnki.mes20150402
[Abstract](2131) [PDF 1259KB](8)
Research on remote sensing retrieval of suspended sediment concentration in Hangzhou Bay by GF-1 satellite
CHENG Qian, LIU Bo, LI Ting, ZHU Li
2015, 34(4): 558-563,577.   doi: 10.13634/j.cnki.mes20150415
[Abstract](1614) [PDF 1915KB](3)
An approach for correcting grain size effect base on the size-frequency distribution
SHI Yong, LIU Zhi-shuai, GAO Jian-hua, WANG Xiao-yong
2015, 34(4): 606-610.   doi: 10.13634/j.cnki.mes20150424
[Abstract](1404) [PDF 1239KB](11)
Effect of salinity and illumination on the growth of Alexandrium tamarense
LIU Qing, LIU Bing-li, WANG Ren-feng, ZHANG Mo, CUI Yan-chao, XU Dong-hai
2015, 34(2): 199-205.   doi: 10.13634/j.cnki.mes20150208
[Abstract](1908) [PDF 1210KB](11)
Research and application of evaluation method for marine ecological island construction-a case study of Chongming Island
ZHONG Chong-jun, LIU Da-hai, XING Wen-xiu, MA Yun-rui, MA Xue-jian
2015, 34(2): 294-299.   doi: 10.13634/j.cnki.mes20150224
[Abstract](1728) [PDF 1106KB](10)
Variation of diamondoid compounds in the fuel oil during long-term natural weathering
Bai-juan YANG, Peng YAO, Zhi-gang YU
2016, 35(5): 697-702.   doi: 10.13634/j.cnki.mes20160510
[Abstract](1210) [FullText HTML](347) [PDF 1568KB](347)

ChiefEditor:关道明

FirstTime:1982年 双月刊

Director:生态环境部

Sponsor:国家海洋环境监测中心、中国海洋学会

Tel:0411-84783126

E-mail:hyhjkx@vip.126.com

NewsMore>

Author Center

WeChat public number