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

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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](221) [FullText HTML](136) [PDF 972KB](2)
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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](152) [FullText HTML](126) [PDF 914KB](1)
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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](158) [FullText HTML](128) [PDF 954KB](1)
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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](152) [FullText HTML](105) [PDF 1019KB](0)
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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](135) [FullText HTML](133) [PDF 1361KB](2)
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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](143) [FullText HTML](116) [PDF 645KB](1)
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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](172) [FullText HTML](120) [PDF 1381KB](1)
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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](149) [FullText HTML](216) [PDF 639KB](2)
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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](163) [FullText HTML](139) [PDF 1029KB](1)
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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](181) [FullText HTML](138) [PDF 628KB](4)
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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](190) [FullText HTML](144) [PDF 1257KB](1)
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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](154) [FullText HTML](121) [PDF 1115KB](1)
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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](144) [FullText HTML](157) [PDF 1509KB](1)
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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](244) [FullText HTML](164) [PDF 742KB](1)
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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](455) [FullText HTML](362) [PDF 772KB](6)
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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](416) [FullText HTML](253) [PDF 868KB](1)
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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](454) [FullText HTML](254) [PDF 504KB](0)
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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](528) [FullText HTML](309) [PDF 1215KB](6)
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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](332) [FullText HTML](345) [PDF 812KB](0)
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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](441) [FullText HTML](310) [PDF 910KB](0)
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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](708) [FullText HTML](615) [PDF 760KB](20)
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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](315) [FullText HTML](225) [PDF 703KB](0)
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](447) [FullText HTML](291) [PDF 627KB](2)
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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](317) [FullText HTML](242) [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](370) [FullText HTML](306) [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](399) [FullText HTML](252) [PDF 736KB](1)
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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](350) [FullText HTML](255) [PDF 697KB](5)
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](351) [FullText HTML](290) [PDF 699KB](2)
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](403) [FullText HTML](260) [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](294) [FullText HTML](246) [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](562) [FullText HTML](330) [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](431) [FullText HTML](268) [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](445) [FullText HTML](298) [PDF 821KB](3)
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](422) [FullText HTML](312) [PDF 874KB](4)
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](498) [FullText HTML](340) [PDF 784KB](9)
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](5425) [FullText HTML](5240) [PDF 968KB](32)
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](4640) [FullText HTML](4450) [PDF 946KB](21)
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](4679) [FullText HTML](4695) [PDF 826KB](14)
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](4920) [FullText HTML](4752) [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](4623) [FullText HTML](4502) [PDF 795KB](9)
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](4618) [FullText HTML](4428) [PDF 869KB](5)
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](786) [FullText HTML](674) [PDF 893KB](11)
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](722) [FullText HTML](521) [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](4971) [FullText HTML](4677) [PDF 863KB](6)
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](5052) [FullText HTML](4766) [PDF 4079KB](6)
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](5187) [FullText HTML](4872) [PDF 942KB](11)
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](5049) [FullText HTML](4742) [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](1357) [FullText HTML](1028) [PDF 891KB](34)
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
Temporal and spatial characteristics of harmful algal blooms in Guangdong coastal area
Yuan TIAN, Tao LI, Si-min HU, Xue-dong XIE, Sheng LIU
2020, 39(1): 1-8.   doi: 10.12111/j.mes20200101
[Abstract](53) [FullText HTML](27) [PDF 5297KB](6)
Abstract:
Based on the historical analysis of harmful algal blooms (HABs) in Guangdong coastal areas from 1980 to 2017, it is found that HABs occurred mainly in Pearl River Estuary, Dapeng bay and Daya bay waters.Guangdong coastal areas could be divided into high frequency region of diatom bloom (western Guangdong), dinoflagellate bloom (central Guangdong) and Chrysophyta bloom (eastern Guangdong) areas.HABs occurred almost every year in the central region of Guangdong (the Pearl River Estuary, Dapeng bay and Daya bay) from 1980 to 2017.The main HABs was no longer diatom bloom in Dapeng bay after 2000, and shifted from diatom blooms to dinoflagellate blooms in Daya bay after 2002.In contrast, HABs stared to occur frequently in the eastern and western Guangdong after 2000.The seasonal occurrence of HABs was different in different regions.In the western Guangdong (Zhangjiang), diatom blooms occurred mainly in summer.In the central Guangdong, toxic and detrimental blooms occurred mainly in Pearl River Estuary in spring; Noctiluca scintillans blooms occurred mainly in Dapeng bay in spring; Scrippsiella trochoidea blooms mainly occurred in Daya bay in summer and autumn.In the eastern Guangdong, P.globosa blooms occurred in the whole year.Based on the temporal and spatial characteristics of HABs in Guangdong coastal areas, we could provide important information for the management of HABs and suggestions for better utilization and protection of marine resources in different regions of Guangdong province.
Distributions of volatile halocarbons in seawater and atmosphere in the East China Sea during spring
Ying WEI, Zhen HE, Gui-peng YANG
2020, 39(1): 9-15.   doi: 10.12111/j.mes20200102
[Abstract](50) [FullText HTML](11) [PDF 6326KB](1)
Abstract:
Volatile halocarbons (VHCs) are important greenhouse gases and ozone depleting substances in the atmosphere.The concentrations of CFC-11 (CC13F), CFC-12 (CC12F2), CFC-113 (CC12FCC1F2) and CH3I in the seawater and marine atmosphere of the East China Sea were measured in May 2017.The spatial distribution of the four kinds of VHCs, their influencing factors and sea-to-air flux were investigated.The mean concentrations of CFC-11, CFC-12, CFC-113 and CH3I were (8.1±5.1), (3.9±1.6), (10.4±2.3) and (6.3±2.7) pmol/L, respectively.The elevated concentrations of VHCs in the surface water were observed in the northeast of East China Sea as well as on the Fujian and Zhejiang coast area.The results indicated that the distributions of the four kinds of VHCs were influenced by the water mass, biological activities as well as human activities.A positive correlation was found between the concentrations of CH3I and Chl a in seawater (r=0.403, p < 0.01).The result implied the influence of the production by phytoplankton to concentration distributions of CH3I in the study area.The mean concentrations of CFC-11, CFC-12, CFC-113 and CH3I in marine atmosphere were (9.8±1.0), (21.1±2.4), (3.0±0.9) and (0.2±0.2) pmol/L, respectively.Combined with meteorological parameters such as wind velocity and wind direction and back trajectory simulations, the transfer of air terrestrial pollutants from China land, the diffusion of offshore air masses and the exchange of VHCs between sea and air were important factors influencing the concentration distribution of VHCs in the atmosphere.The sea-air flux demonstrated that the East China Sea acted as a sink for atmospheric CFC-11 and CFC-12 in the study area, whilst a source for CH3I in the air during spring.
Comparison of indicators for the assessment of saltwater intrusion in coastal aquifers——taking aquifers in Pearl River Estuary as an example
Zhi-wei LI, Xiao-ying ZHANG, Ming-zhu ZHANG, Dan LI, Guang-xiong QIN, Liang ZHANG, Li-wei SUN, Fan YANG, X. Bill HU
2020, 39(1): 16-24.   doi: 10.12111/j.mes20200103
[Abstract](50) [FullText HTML](11) [PDF 4905KB](1)
Abstract:
Saltwater intrusion (SWI) represents a threat to coastal aquifers worldwide by rendering groundwater quality not viable for its intended purposes.Therefore, understanding and assessing the impact of SWI effectively is indispensable for the aquifer management and the health of residents.Nowadays, SWI assessment from hydrogeochemical aspect generally includes single factor and multiple indexes.In the study, taking aquifers in Pearl River Estuary as an example, the paper comprehensively expounds the hydrochemical indicators and their principles including the methods which are seldom used in China.Then the effectiveness, time consumed and economic cost of the variable indicators are compared and the associated practical problems are evaluated.The results indicate that Cl- and TDS indicators are simple ways that could be used as effective direct single factors in the SWI evaluation, especially for large-scale.Meanwhile, the Ca2+ related indicators are not sensitive to separate the freshwater and saltwater in the study domain.Among the complex factors, SAR, BEX and GQISWI are highly correlated with Cl- and could illustrate the ion exchange in the SWI process.The research provides a comprehensive review of most of the indicators which commonly used in assessing the dynamics of SWI and compares their potential impacts.The paper as well as provides an effective way for informed impact assessment and planning for sustainable exploitation of coastal aquifers.
Zooplankton diversity and its relationships with environmental factors in the Liaohe estuary
Zhi YANG, Jin-qing YE, Qing YANG, Hao GUO
2020, 39(1): 25-30.   doi: 10.12111/j.mes20200104
[Abstract](46) [FullText HTML](11) [PDF 1932KB](1)
Abstract:
The spatial and seasonal distribution of zooplankton were examined in the Liaohe estuary in August (summer) 2013, October (autumn) 2013, and May (spring) 2014.The zooplankton species showed an obvious seasonal variation pattern, with the alternation rate of 40.91% from summer to autumn and 35.29% from autumn to spring.The most dominant species of zooplankton was Paracalanus parvus in summer, while it was Acartia bifilosa in spring and autumn.The total species number of zooplankton was significantly higher in summer than in spring and autumn although the species number of the copepoda varied little between 13 and 14 in different seasons.The increased group number of merozooplankton which accounted for 47.62% of the total species number of zooplankton explained the highest species number in summer.The individual number of zooplankton was highest in spring[(6.4±1.3)×104 ind./m3] and lowest in autumn[(5.5±0.6)×103ind./m3].Both the Shannon-Weaver index and Pielou index was higher in summer than in spring and summer.The Sperman analysis showed that there was a significant positive relationship between the spatial distribution of zooplankton diversity and salinity, but a significant negative relationship between zooplankton diversity and DIN and DIP.A significant negative relationship was found between the abundance of the indicator species Pseudodiaptomus poplesia and salinity, but a significant positive relationship between its abundance and DIN and DIP.This study is of significance for the ecological monitoring and government in Chinese estuaries.
Physiology responses of Nannochloropsis oculata and Pseudokirchneriella subcapitata to antibiotic pollution and their removal effects
Hui CHEN, Shan LIU, Qin-wei HAO, Xiang-rong XU
2020, 39(1): 31-38.   doi: 10.12111/j.mes20200105
[Abstract](38) [FullText HTML](7) [PDF 5221KB](1)
Abstract:
The widespread use of antibiotics has caused potential risks to aquatic ecological environment.In order to investigate the physiology responses and their removal effects of algae to antibiotic pollution, three kinds of antibiotics erythromycin, norfloxacin and sulfadiazine, seawater algae Nannochloropsis oculata and freshwater Pseudokirchneriella subcapitata, were chosen for the study.Among three antibiotics, erythromycin was the most toxic.Lower concentrations of erythromycin stimulated the growth of algae, but its higher concentrations inhibited the growth of algae.The values of half maximal effective concentration (EC50) at 72 h to Nannochloropsis oculata and Pseudokirchneriella subcapitata were 6.13 mg/L and 27.7 μg/L, respectively.With the increased concentration of erythromycin, the photosynthetic pigments of both algae decreased significantly (p < 0.05).The activities of superoxide dismutase and catalase of two algae were significantly enhanced when erythromycin was at the low concentrations, but with the increased concentrations of erythromycin their activities gradually decreased (p < 0.05).Results indicated that the studied two algae were capable of removing the residual antibiotics to some extents.After 144 h of culture, 57.0% of norfloxacin and 78.3% of sulfadiazine were removed by Nannochloropsis oculata, 51.2% of norfloxacin and 8.3% of sulfadiazine were removed by Pseudokirchneriella subcapitata after 120 h of culture.
Distribution characteristics and environmental assessment of biogenic elements in surface sediments from the central Bohai Sea
Wen-cong ZHONG, Zhao-hui WANG, Tao JIANG
2020, 39(1): 39-45, 52.   doi: 10.12111/j.mes20200106
[Abstract](44) [FullText HTML](7) [PDF 4901KB](1)
Abstract:
Thirty surface sediment samples were collected from the central Bohai Sea in May 2015.Total organic carbon (TOC), total nitrogen (TN), total phosphorus (TP), biosilicon (BSi), organic matter (OM) and moisture content (MC) were analyzed to understand distribution characteristics of biogenic elements of the surface sediments from the central Bohai sea and further reveals the contribution of organic matter sources and marine biogeochemical processes.The contents of biogenic elements were 0.21%~1.43% for TOC, 0.01%~0.12% for TN, 0.01%~0.04% for TP, 0.08%~0.46% for BSi, 1.43%~9.42% for OM and 18.24%~47.70% for MC, respectively.The distribution patterns of TOC, TN, TP, OM, and OM were similar, reflected by lower in the east and higher in the west.However BSi was higher in the middle of the central Bohai Sea.Organic matters were originated from mixed inputs of terrestrial and marine sources and mainly form the terrestrial sources based on the molar ratios of TOC/TN.Diatoms contributed a lot to the total primary productivity based on TOC/BSi ratios.Results from the sediment quality evaluation showed that the surface sediments were contaminated to some extent, and TOC and TN were over class Ⅱ standards in some sea areas of the central Bohai Sea based on sediment quality assessment criteria of the Department of Environment and Energy of Ontario, Canada.
Primary study on ecological prevention of the algae using Siganus guttatus in the sea area of the water cooling system intake of the nuclear power plant in Liaodong bay
Bo-qiang ZHAO, Chun-jiang GUAN, Peng XU, Jin-song LUO, Gui-ze LIU, Yi ZHANG, Hong-yu PU, Xiao-cheng WANG, Chuan JIA
2020, 39(1): 46-52.   doi: 10.12111/j.mes20200107
[Abstract](40) [FullText HTML](7) [PDF 3119KB](0)
Abstract:
The abnormal bloom of marine organisms in the sea area around the water cooling system of the nuclear power plant can lead to the blockage of the water intake, which affects the normal operation of nuclear power seriously.Our study carried out laboratory experiments and field experiments using Siganus guttatus as the experimental object.We studied the feeding of the fish on the dominant algae Ulva linza under different temperature gradients (29℃, 26℃, 23℃, 20℃ and 17℃) in the laboratorial simulant experiment and the feeding on Ulva linza and Ulva pertusa in situ.We found that Siganus guttatus had the strong ability of feeding Ulva linza in laboratory experiments.In the suitable survival temperature range, the higher temperature resulted into the higher feeding rate.In the 29℃ group, the average feeding rate was as high as 7.86%.In field experiments, it was found that Siganus guttatus grew well and had high preference to Ulva linza and Ulva pertusa.In summary, Siganus guttatus has the potential to prevent the algae boom in the sea area around the water cooling system of the nuclear power plant.However, specific measures and ecological risk assessment need further discussion.This study provided the theoretical basis and the technical support for the prevention.
Distribution characteristics and controlling factors of PAHs in surface sediments in north of North Yellow sea
Qiang LIU, Jian-hua GAO, Yong SHI, Qiao AI, Hui SHENG, Dao-lai ZHANG, Jun LI, Feng-long BAI
2020, 39(1): 53-58.   doi: 10.12111/j.mes20200108
[Abstract](32) [FullText HTML](6) [PDF 5372KB](1)
Abstract:
In order to investigate the distribution and controlling factors of polycyclic aromatic hydrocarbons (PAHs) in the sediments in the north of North Yellow sea, we collected 31 surface sediments in July 2016 in these areas and analyzed PAHs, total organic carbon and particle size.The results show that the total PAHs concentration of the surface sediments was in the range of 3.54 ng/g to 93.07 ng/g (average value, 34.50 ng/g), indicating a relatively low PAHs pollution level in the study area.The distribution of PAHs decreases gradually from offshore to offshore along eastern coast of the Liaodong Peninsula.According to the principal component analysis, the majority of PAHs in the sediments is from fossil fuel combustion and oil spill.The distribution of organic carbon in this area is affected by the material input of the Yalu River, and its content gradually decreases from east to west.The grain size appears to be large in the east of the Changshan Islands; while in the west of Changshan Islands, the grain size is small, and with relatively few variations.Further analysis shows that the distribution of PAHs in the study area is mainly affected by the material source of the Yalu River, small and medium-sized rivers along the Liaodong Peninsula and the Yellow River.In addition, sedimentary dynamic conditions are also important factors affecting the distribution of PAHs.
The input of nutrients through the Yangtze River and its effect on nutrient concentrations and structures of the Yangtze Estuary
Jin-qiang GUO, Gui-cheng ZHANG, Chun-ying CHU, Sheng-kang LIANG, Xiu-rong HAN
2020, 39(1): 59-65, 74.   doi: 10.12111/j.mes20200109
[Abstract](44) [FullText HTML](7) [PDF 1585KB](0)
Abstract:
The seasonal variations of concentrations and fluxes of dissolved inorganic nitrogen (DIN), activated phosphate (PO4-P), and active silicate (SiO3-Si) in the Yangtze River (YZR) were investigated bimonthly during 2011~2014.The annual variations of the DIN, PO4-P, and SiO3-Si fluxes as well as their effects on the nutrient concentrations and ratios in the Yangtze Estuary (YZE) were discussed.The DIN concentrations were higher in summer and autumn than in winter and spring, while the PO4-P concentrations were higher in autumn and winter than in spring and summer.The SiO3-Si concentrations were significantly related to the total suspended particulate matter and showed no obvious seasonal variation.The seasonal fluxes of DIN and SiO3-Si followed the runoff variation and were higher in summer than in winter, while the PO4-P fluxes were higher in autumn than in winter.Historic records from 1960s to 2010s showed a 9.5-fold and 3.6-fold increase in the DIN and PO4-P fluxes and a 0.6-fold decrease in the SiO3-Si fluxes.Accordingly, the average annual concentrations of DIN and PO4-P in the YZE increased by 4.5 and 0.8 times, respectively, while that of the SiO3-Si decreased by 0.6 times, meanwhile, the ratio of N/P increased by 2 times, and the ratio of Si/N and Si/P decreased by 0.9 and 0.8 times, respectively.The variations of nutrient input by YZR might be attributing to an increase in red tide scale and a decrease in the proportion of diatoms in the YZE in the past 60 years.
Control of sulfide in aquaculture water by immobilized sulfur-oxidizing bacteria
Meng YANG, Yang-guo ZHAO, Xiao-qiong WANG, Jun-peng WANG
2020, 39(1): 66-74.   doi: 10.12111/j.mes20200110
[Abstract](30) [FullText HTML](5) [PDF 3736KB](1)
Abstract:
In marine aquaculture habitats, large amounts of sulfides are produced due to the accumulation of organic matter and anoxic conditions, which seriously endanger the health of the aquaculture environment.For this purpose, a marine aquaculture system was established to adsorb immobilized sulfur-oxidizing strains with zeolite as a carrier, and the immobilized sulfur oxidizing bacteria bag was positioned and positioned to explore its control effect on the sulfides in the habitat and its influencing factors.The results showed that the viable bacteria content in the immobilized microbial agent was 1.9×107 CFU/g, and the control effect on sulfides was greatly affected by the ambient temperature, pH, and dosage of the microbial inoculum, and the resistance to temperature and pH changes was better.The maximum removal rate of sulphide under experimental conditions of 30℃, pH 7.0, and 150 r/min was 8.3 mg/(g·h·L).In aquaculture environment, the zeolite immobilized microbial inoculum was laid in a geotextile bag and the cloth bag was laid flat on the central sediment-water interface of the culture system.The coverage was 2.5%.It was found that the immobilized microbial inoculant can significantly inhibit the vulcanization in the environment.The production of the substance controlled 99% of sulfides within 7 days under anoxic conditions.This study shows that the deployment of sulfur oxidizing bacteria at fixed points can control sulphides in aquaculture waters and provide data support for its application in marine aquaculture systems.
Distribution and controls of aragonite saturation state in the Northern South China Sea
Hong-gang LV, Ping HAN, Jin WANG, Lin TIAN, Yi-fei JIANG, Xian-qiao WANG
2020, 39(1): 75-80.   doi: 10.12111/j.mes20200111
[Abstract](36) [FullText HTML](8) [PDF 4118KB](0)
Abstract:
Based upon surveys conducted in August and September 2011, the distribution characteristics of aragonite saturation state (Ωarag) were investigated in the Northern South China Sea.Based on a two end-member mixing model, the contributions to Ωarag from two processes associated with upwelling:physical transport vs.biological production were analyzed.Results showed that transect A off the Pearl estuary was influenced by upwelling, while transect B off the Hainan Island was highly stratified.Ωarag ranged from 1.87~3.05 along transect A and 1.77~3.29 along transect B.Low Ωarag values primarily occurred in the upwelling area along transect A and deep water along transect B.Using a two end-member mixing model, we found that physical transport induced a Ωarag decrease of up to 0.37.Aerobic respiration in the nearshore area caused Ωarag to decrease by up to 0.7, while in the offshore area, biological production caused Ωarag to increase by 0.1.In contrast, excess CO2 derived from aerobic respiration in the deep water contributed to low Ωarag along transect B.
Light scattering and backscattering of particles in relation to the proportions of the organic and inorganic particles
Ling-ling JIANG, Jia-hui DUAN, Lin WANG, Yan-long CHEN, Bing-nan LI, Xiang-yu GUO
2020, 39(1): 81-88.   doi: 10.12111/j.mes20200112
[Abstract](32) [FullText HTML](6) [PDF 3770KB](0)
Abstract:
Studying the influence of the proportion of particles constitutes on the scattering and backscattering properties, which is of great significance for development of ocean color remote parameters at each station were obtained, and correlation analysis was performed.It showed that the amplitude of the backscattering coefficients variation at each wavelength was significantly increased by the influence of the particles, and the maximum value of the coefficient of variation (CV) appeared at the band 550 nm.And the relationship between scattering(bp), backscattering coefficients (bbp) and total suspended particulate concentration (SPM), PIM and POM were established respectively.It was found that the water backscattering was affected by the particle composition and the concentration of organic and inorganic particles.The accuracy of the model between bb and particle composition is higher, and the root mean square error (RMSE) varies from 0.0094 to 0.0143.The best model accuracy appeared at band 700 nm.At the same time, the effect of PIM/SPM on scattering efficiency and backscattering efficiency was analyzed.It was concluded that the backscattering efficiency Qbbe was the mostly affected by the proportion of inorganic particles relative to the scattering efficiency Qbe.But the relevance of Qbbe and PIM/SPM is not very high, the coefficient of determination R2 is 0.4.
Spatial and temporal distribution of nutrients and chlorophyll a, and their influential factors in Caofeidian coastal waters
Xi-han LIU, Yu-jue WANG, Ya-jun SHI, Dong-yan LIU, Yan-xia WANG, Hai-lan TIAN, Lin CHENG
2020, 39(1): 89-98.   doi: 10.12111/j.mes20200113
[Abstract](36) [FullText HTML](9) [PDF 7780KB](3)
Abstract:
Based on two cruises respectively carried out in May 2014 and August 2013 in Caofeidian coastal waters, temporal and spatial distributions of nutrients and chlorophyll a (Chl a), their influential factors and correlations with water temperature, salinity, chemical oxygen demand (COD) and suspended particle matter (SPM) were analyzed in this study.Trophic status and nutrient limitation were assessed, and changes of trophic status after land reclamation were discussed.The results showed dissolved inorganic nitrogen (DIN), dissolved inorganic phosphate (DIP) and dissolved silicate (DSi) were mainly affected by riverine inputs and sediment release with high values ordinarily occurred in inshore waters.Nutrient quality index (NQI) ranged from 1.07 to 2.23, indicating their oligotrophic or mesotrophic status.Nutrient limitations showed seasonal variations, which were Si limitation in spring and P limitation in summer.The high values of Chl a in spring were observed in eastern offshore waters and the northeastern bay, which was related to salinity, P and Si, while those in summer occurred near Caofeidian foreland and the northeastern bay, which was mainly related to P and Si.The comparison between historical data and this study revealed that in spring DIN, NQI and Chl a decreased in western sea areas and increased in eastern sea areas, which was possibly related to nutrients redistribution induced by spatial variations of tidal changes after reclamation, while in summer DIN and NQI decreased and Chl a increased in most study areas, suggesting nutrients were largely consumed by phytoplankton and influence of reclamation should be further discussed basing on phytoplankton community.
Validation of MODIS aerosol optical depth over Yuandao in the North Yellow Sea
Yu-juan MA, Yan-long CHEN, Jian-hua ZHAO, Ling-ling JIANG
2020, 39(1): 99-105.   doi: 10.12111/j.mes20200114
[Abstract](30) [FullText HTML](5) [PDF 4149KB](0)
Abstract:
The latest version MODIS C061 aerosol retrievals were evaluated with collocated aerosol optical depth(AOD) from island-based Sun photometer over Yuandao in the North Yellow Sea.Based on the two kinds of data, the size of spatial-temporal windows were discussed and spatial window of 30 km×30 km and temporal window of ±0.5 h were selected.The validation results showed there was a good relationship between the MODIS AOD and the island-based AOD, the correlation coefficient was 0.98.The MODIS AOD products at 550 nm fell well within NASA expected error envelop (EE) ([(0.04+0.1*AOD), (-0.02-0.1*AOD)])in spring, autumn and winter, while the proportion within expected EE was only 40% in summer, the inconsistency between aerosol module assumption and in-situ may explain the lower precision of AOD in summer.
Study on material transport characteristics in Jiaozhou bay based on Lagrangian method
Yi-lei FENG, Xue-qing ZHANG, Jin-zhen YU
2020, 39(1): 106-113.   doi: 10.12111/j.mes20200115
[Abstract](33) [FullText HTML](6) [PDF 6568KB](0)
Abstract:
Based on finite volume community ocean model (FVCOM), this paper simulated Lagrange residual current, finite-time Lyapunov exponents (FTLEs) and Lagrangian coherent structures (LCSs) in Jiaozhou bay.The results show that the main vortices in the west and east of Jiaozhou bay are all anticlockwise, and three vortices, clockwise, anticlockwise and clockwise respectively, spread from north to south in the middle.There are also some small residual vortices in Dagu River estuary, Yanghe River estuary and so on.Corresponding to the residual current structures, the obvious ridges of LCSs in north-south direction exist in Jiaozhou bay.The ridges of LCSs characterize the boundary of the residual vortices and play a barrier role in material transport from one side to the other.This paper clarifies the distribution characteristics of pollutant transport in Jiaozhou bay from the aspect of Lagrangian method.The research results can explain the high concentration phenomenon of pollutant, optimize the site selection of sewage outlets and provide reference for marine environmental management in Jiaozhou bay.
Numerical simulation of water exchange in the Dalian bay of China
Xue-feng CAO, Yu-ming ZHANG, Shu-fang ZHANG, Wen-qi SHI, Qing-jie LI, Hong-yuan SHI, Ping WANG, Yu WANG, Qian ZHAO, Cheng-wei HAN
2020, 39(1): 114-120.   doi: 10.12111/j.mes20200116
[Abstract](32) [FullText HTML](7) [PDF 4946KB](0)
Abstract:
Based on an unstructured grid and finite-volume coastal ocean model that contained eight main tidal components of K1、O1、P1、Q1、M2、S2、N2 and K2, this paper developed a three-dimensional hydrodynamic model with high-resolution in Dalian bay of China.By comparing the simulated elevation and current data with the observed data, the model could well reflect the hydrodynamic characteristics.Furthermore, DYE-RELEASE module was merged into model to simulate water exchange process and half-life time was used to evaluate the capacity of the whole and sub-regions of Dalian bay.The simulation results indicates that, initial time of tracer release has an impact on the half-life time.On the average, half-life time is 9.6 d~12.3 d in Dalian bay.The concentration decreased more rapidly in spring tide period than in neap tide period so that water exchange capacity in spring tide period is stronger.The half-life time distribution is characterized by the shorter distance from the mouth to the bay and the shorter half-life time.Under the same distance, the half-life time of the southwest is shorter than that of the northeast.The water exchange capacity is characterized by that, the strongest is the central part of Dalian bay, followed by Hongtuduizi bay and the weakest is Tianshuitao and Choushuitao bays.
Biological and ecological characteristics of intertidal seagrass Halophila beccarii and its conservation countermeasures
Guang-long QIU, Zhi-nan SU, Hang-qing FAN, Chao FANG, Si-ting CHEN
2020, 39(1): 121-126.   doi: 10.12111/j.mes20200117
[Abstract](35) [FullText HTML](7) [PDF 5490KB](0)
Abstract:
The dubbed "living dinosaur" Halophila beccarii Asch., among one of the oldest lineage of seagrasses, is a typical intertidal seagrass in Indo-Pacific area.It is biologically characterized by being ancient, tiny, fast-growing, monoecious, protogynous, low genetic variation and having both annual and perennial life cycles forms.Ecologically, it is considered as a colonizing or a pioneer seagrass species and a "tiny but mighty" seagrass species, since it may recover quickly from disturbance generally.H.beccarii and its' significance are neglected to a large extent due to its limited distribution, very tiny plant size, fast turn over, easily buried-shoot by sediment in the field.The intensive human disturbances in the intertidal zones pose profound threats to this species.The global population trends indicate the species is declining and it was listed as "Vulnerable" by the International Union for Conservation of Nature (IUCN) under criterion B2 and among one of the ten seagrass species which are at elevated risk of extinction in the world.Based on the biological and ecological features and the threatened situation of H.beccarii, we propose that:(1)include it into "China red data book of endangered species"; (2)take measures to conserve the soil seed bank; (3)the seagrass plants should be appended to the key protection objects list of the associated mangrove reserves; (4)ex-situ conservations may be carried out when facing inevitable loss of seagrass habitats; (5)some studies, such as releasing of seed dormancy, promoting of seed germination, cultivating in the laboratory and transplanting in the field, are encouraged to enhance.
Study on the macrobenthic community structure of the intertidal zone in the Yuhuan National Marine Park in summer
Hang-jun WANG, Qing ZOU, Jun-zhang GAO, Ya-lin LIU, Wei-min YAO
2020, 39(1): 127-132.   doi: 10.12111/j.mes20200118
[Abstract](33) [FullText HTML](7) [PDF 1847KB](1)
Abstract:
In this paper, the results of research on the benthos at rocky bottom in five sections of Yuhuan National Marine Park, in August 2017, have been reported.A total of 113 species including 38 spceies of Mollusca, 25 species of Crustacea, 25 species of Polychaeta, 11 species of Plantae, 7 species of Cnidaria, and 7 other species were identified.The dominant species were Tetraclita japonica, Septifer virgatus, Tetraclita squamosa squamosa, Exosphaeroma oregonensis, Hyale honoluluensis, Spirobranchus kraussii and Kellia porculus.The average abundance and biomass for all the sections were 3772 ind/m2 and 2853.32 g/m2, respectively.Other calculated parameters are showed as follows:Shannon-Wiener(H')=1.89, Margalef index(d)=1.30, Pielou index (J)=0.48.Compared with the macrobenthos in other sea islands which are adjacent to the rocky intertidal zone, the macrobenthos in the Yuhuan National Marine Park had a high level of biodiversity and biomass a moderate habitat density.
Spatial and temporal distribution characteristics and source analysis of beach litter in Shandong province from 2009 to 2017
Wei SUN, Huan-jun LI, Yan-dong XU, Yuan-qing MA, Xian-chun TANG, Xiao WEI
2020, 39(1): 133-137.   doi: 10.12111/j.mes20200119
[Abstract](34) [FullText HTML](10) [PDF 1923KB](2)
Abstract:
On the basis of the survey data from 2009 to 2017, we systematically analyzed the temporal and spatial distribution characteristics of beach litter on seven typical beaches of Shandong province in the past 9 years.Then the source analysis of beach litter was conducted.The results showed that the main components of beach litter were plastics, wood products, glass and paper in Shandong province, with the largest amount of plastics accounting for 55.86%.The mean quantity and quality density of beach litter were 75958/km2 and 1186.47 kg/km2, respectively, and they both showed significant regional differences.There were plenty of small and medium-sized light wastes (74.03%) in beach litters in Shandong province, and their inventory had similarly changed with other monitoring areas of China.For many years, the main sources of beach litter were human coastal activities (54.88%), other refuse (24.59%) and shipping/fishing wastes (10.40%) in Shandong province.The regional statistics indicated that different cities varied in litter sources, which might be related to the economic development, coastal utilization as well as the functional zones in monitoring area of different cities.
Estimation of adsorbed nitrogen pollution load by soil erosion in Biliu river basin based on spatial grid unit
Zi-zhou XU, Dong YU, Guan-feng TAO, Bin LIANG, Rong-juan ZHU, Ya-hui LIANG
2020, 39(1): 138-144.   doi: 10.12111/j.mes20200120
[Abstract](31) [FullText HTML](6) [PDF 5911KB](0)
Abstract:
Integration of universal soil loss equation with sediment delivery and nitrogen enrichment model supporting by ENVI and ArcGIS system, an universal calculation method of absorbed nitrogen load was established based on spatial grid unit.Illustrated by the example of Biliu river basin, the calculation factors of the models were studied, the amount of soil and sediment loss and the pollution load of absorbed nitrogen was estimated with the sampling data and collection information.The result showed that, the average soil erosion module of Biliu river basin was 1137 tons/(km2·a), the average sediment delivery modulus was 295 tons/(km2·a), the loss of adsorbed nitrogen module was 326 tons/(km2·a) in 2012.The total loss of adsorbed nitrogen was 878 tons, forest and arable land together accounted for 64% and 32%, which forest was 562 tons and arable land was 285 tons respectively.In order to reduce the loss of absorbed nitrogen because of soil erosion in Biliu river basin, one should improve the quality of forest and grassland, and implement protection projects in weak water and soil conversation areas.
Study on the influence of coastline evolution on water exchange in Zhifu bay
Jin-long ZHU, Yan-dong XU, Shu-xiang ZHU, Gui-qin SUN, Xiao WEI, Wei SUN
2020, 39(1): 145-152.   doi: 10.12111/j.mes20200121
[Abstract](41) [FullText HTML](9) [PDF 6901KB](1)
Abstract:
The Zhifu bay of Yantai, a typical semi-closed bay, was taken as our research object.Firstly, based on multi-temporal remote sensing images and topographic data, data of coastline was extracted in 4 time phases from 1976 to 2016.Then a 2D advection-diffusion model of Zhifu bay was established by water exchange rate to study the evolution of its water exchange ability under the influence of coastline changes.The western Zhifu bay, whose coastline had changed significantly, was divided into 5 sub-regions to analyze heterogeneity of regional water exchange ability elaborately.The results showed that the coastline of Zhifu bay has been growing seaward tortuously, in which the western part has greatly changed and increased by 58.17% in the past 40 years.Construction of ports and jetties was the main cause of coastline variation.The water exchange ability of Zhifu bay firstly strengthened from 1976 to 1991, and then weakened during 1991~2016.The average half-life time showed an overall growth trend, and the time of 2016 was 127 h, increasing by 35 h compared with that of 1976 (92 h).The regional disparity of water exchange ability varied widely in the west of Zhifu bay, and the formation of 3 harbors, the North Harbor, the Harbor Ⅲ and the Harbor I, was the major contributor which weakened the water exchange ability of Zhifu bay.
Techniques and Methods
Automatic extraction of coastline in complex coastal areas simulating high tide
De-zheng TIAN, Chang-ying WANG, Yuan-feng HAN, Yi SUI, Jia-lan CHU
2020, 39(1): 153-161.   doi: 10.12111/j.mes20200122
[Abstract](36) [FullText HTML](7) [PDF 6763KB](0)
Abstract:
Traditional coastline extraction methods only aim at a certain type of coast effectively.For areas containing a variety of types of coastal areas, it is necessary to cut the image classification, extract the coastline, and stitching images to extract the complete coastline.The process is not only complicated, but also difficult to divide different types of coastal areas strictly.Therefore, a new coastline method suitable for mixed coastal area is proposed-automatic coastline extraction method for simulating sea water rising process.Firstly, a classification method based on spectral difference decision tree (SDDT) is applied to classify remote sensing images.According to the difference of the types of land, the two categories are marked as "tidal area" and "non tidal area".Secondly, by calculating the area of each patch area, the area blocks less than a preset threshold are defined as the noise region, and all noise areas are removed.Finally the maximum rectangle filling algorithm(MRFA) is used to simulate the flood tide to gradually fill the "tidal area" and extract the coastline.The coastline extracted by this method is continuous, and is not affected by a small number of misclassified patches in the classification map.
Design and implementation of losses assessment system for red tide disasters in Qinhuangdao sea area
Bing-nan LI, Yan-long CHEN, Tao ZHU, Jian-hua ZHAO, Shi-yong WEN, Wan-lei ZHANG
2020, 39(1): 162-168.   doi: 10.12111/j.mes20200123
[Abstract](40) [FullText HTML](12) [PDF 4241KB](2)
Abstract:
Based on the existing losses assessment methods for red tide disasters proposed by the predecessors and the hazard characteristics of red tide disasters, economic loss assessment index of red tide disasters is put forward based on the actual needs and the operational data that can be got in the operational work.The losses assessment system for red tide disasters is based on ArcGIS Engine and Visual C#, established to realize functions of data input and management, GIS data detection query, loss evaluation model calculation, thematic maps production and output, and achieve visualization of assessment results.The results of the assessment include the losses assessment of marine aquaculture industry, the losses assessment of coastal tourism, the assessment of the cost of emergency monitoring and the assessment of the cost of disposal of red tides.It also plays an important role in the local post-disaster rescue and economic losses assessment and also provides the scientific basis for the managers' decision-making.
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](2405) [PDF 1206KB](31)
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](2328) [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](2577) [PDF 1239KB](7)
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](2517) [PDF 1366KB](11)
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](2515) [PDF 1311KB](17)
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](2413) [PDF 1290KB](14)
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](2467) [PDF 1281KB](10)
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](2560) [PDF 1214KB](12)
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](2597) [PDF 1089KB](30)
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](2371) [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](2521) [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](2437) [PDF 1095KB](21)
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](2405) [PDF 1285KB](9)
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](2474) [PDF 1169KB](14)
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](2513) [PDF 1280KB](15)
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](2526) [PDF 1176KB](9)
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](2174) [PDF 1088KB](7)
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](2342) [PDF 1135KB](13)
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](1899) [PDF 1144KB](11)
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](2704) [PDF 1179KB](11)
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](2453) [PDF 1351KB](3)
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](1620) [PDF 1115KB](7)
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](2048) [PDF 1312KB](26)
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](2786) [PDF 1195KB](9)
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](2400) [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](2208) [PDF 1121KB](23)
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](2090) [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](2117) [PDF 1173KB](5)
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](1916) [PDF 1447KB](16)
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](2233) [PDF 1184KB](14)
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](1887) [PDF 1145KB](10)
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](1473) [PDF 1231KB](5)
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](1508) [PDF 1239KB](10)
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](2048) [PDF 1088KB](10)
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](1542) [PDF 1216KB](7)
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](1833) [PDF 1100KB](7)
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](1792) [PDF 1168KB](9)
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](1553) [PDF 1097KB](2)
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](1621) [PDF 1261KB](7)
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](1889) [FullText HTML](292) [PDF 1202KB](292)
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](1518) [PDF 1136KB](10)
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](1582) [PDF 1258KB](7)
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](1619) [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](1727) [PDF 1165KB](5)
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](1962) [PDF 1218KB](9)
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](2171) [PDF 1332KB](5)
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](1741) [PDF 1163KB](14)
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](1378) [PDF 1224KB](7)
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](1469) [PDF 1258KB](3)
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](1665) [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](1588) [PDF 1165KB](9)
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](1901) [PDF 1255KB](17)
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](1622) [PDF 2033KB](4)
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](1678) [PDF 1377KB](9)
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](1964) [PDF 1384KB](12)
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](1659) [PDF 1212KB](4)
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](1111) [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](2040) [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](1558) [PDF 1884KB](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](1684) [PDF 1227KB](15)
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](1281) [PDF 1338KB](6)
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](1674) [PDF 1244KB](15)
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](1311) [FullText HTML](238) [PDF 1392KB](238)
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](1852) [PDF 1282KB](21)
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](1756) [PDF 1243KB](7)
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](1791) [PDF 1382KB](6)
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](2649) [PDF 1998KB](7)
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](1645) [PDF 1243KB](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](1611) [PDF 1233KB](17)
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](1556) [PDF 1133KB](5)
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](1807) [PDF 1090KB](22)
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](1880) [PDF 1274KB](13)
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](1951) [PDF 1221KB](14)
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](1801) [PDF 1452KB](20)
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](1454) [PDF 1593KB](10)
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](1360) [PDF 1145KB](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](1389) [PDF 1161KB](7)
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](1569) [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](1659) [PDF 1312KB](4)
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](1673) [PDF 1110KB](16)
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](1678) [PDF 1136KB](9)
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](1754) [FullText HTML](273) [PDF 3058KB](273)
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](1220) [FullText HTML](253) [PDF 1638KB](253)
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](1626) [PDF 1394KB](9)
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](1583) [PDF 1231KB](4)
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](1472) [PDF 1130KB](6)
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](1822) [PDF 1172KB](24)
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](1650) [PDF 1212KB](10)
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](1582) [PDF 1255KB](5)
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](1531) [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](1614) [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](1730) [PDF 1112KB](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](1033) [PDF 1179KB](6)
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](1397) [PDF 1730KB](11)
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](2107) [PDF 1259KB](6)
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](1593) [PDF 1915KB](2)
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](1384) [PDF 1239KB](7)
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](1891) [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](1712) [PDF 1106KB](8)
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](1194) [FullText HTML](253) [PDF 1568KB](253)

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