• 中文核心期刊
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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](804) [FullText HTML](591) [PDF 968KB](24)
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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](124) [FullText HTML](92) [PDF 944KB](13)
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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](132) [FullText HTML](118) [PDF 826KB](6)
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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](283) [FullText HTML](237) [PDF 773KB](2)
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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](92) [FullText HTML](98) [PDF 795KB](1)
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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](121) [FullText HTML](68) [PDF 869KB](3)
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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.
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](121) [FullText HTML](103) [PDF 760KB](0)
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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.
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](277) [FullText HTML](195) [PDF 893KB](2)
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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](183) [FullText HTML](132) [PDF 828KB](0)
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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](362) [FullText HTML](234) [PDF 863KB](4)
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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](451) [FullText HTML](320) [PDF 4079KB](1)
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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](531) [FullText HTML](376) [PDF 942KB](4)
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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](305) [FullText HTML](171) [PDF 762KB](1)
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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](736) [FullText HTML](423) [PDF 891KB](27)
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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.
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Investigation and Research
Effect of Aureococcus anophagefferens (brown tide) on growth and feeding of the mussels Perna Viridis
Fan HE, Lei XIE, Xiao-jiao XU, Tian-jiu JIANG
2019, 38(4): 489-493, 502.   doi: 10.12111/j.mes20190401
[Abstract](44) [FullText HTML](79) [PDF 1351KB](8)
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The effects of brown tide algae species Aureocuccos anophagefferens and its mixture with Tetraselmis subcordiformis on the growth and feeding of the mussels Perna viridis were investigated in laboratory.The results showed that A.anophagefferens had a significant negative effects on the growth and feeding of mussels Perna viridis.The soft tissue fresh weight, dry weight and ash free dry weight (AFDW) of mussel fed on both high and medium cell densities of pure culturing A.anophagefferens were significantly lower than those of messel fed on mixed algae groups, the growth condition index (CI) of mussel decreased significantly as well, and the decrease rate was even lower than those mussels treated with starvation.The CI, fresh weight, dry weight and AFDW of mussels exposed to mixed algae group were significantly lower than control groups, and the decrease rate was related to the concentration of A.anophagefferens in mixed algae groups.When the concentration of A. anophagefferens in mixed algae group was higher (≥ 4×105cells/mL), the above indexes of mussels were even obvious lower.The feeding rates of mussels exposed to the mixed algae groups were significantly lower than that in the control group.The inhibitory effect on mussel feeding was also related to the cell density of A.anophagefferens, and the ingestion rate of mussel exposed to the groups of mixed high concentration A.anophagefferens was lower than that in the control group.These results suggested that the inhibitions were not only because A.anophagefferens cell size was too small to be ingested normally by mussel, but also the algae species could produce some toxic substance that inhibited the feeding and growth of mussels.To some extent, the inhibitory effect could be alleviated by the behaviour of mussels fed on T.subcordiformis simultaneously.
Community characteristics of zooplankton in the South Yellow Sea in summer, 2008
Yu-tao HE, Guang-xing LIU, Jing FANG, Hong-ju CHEN
2019, 38(4): 494-502.   doi: 10.12111/j.mes20190402
[Abstract](41) [FullText HTML](46) [PDF 1437KB](3)
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To understand the dynamics of zooplankton community characteristics in the South Yellow Sea, zooplankton composition, abundance, biodiversity and dominant species were investigated in August 2008.A total of 72 species of zooplankton and 27 species of pelagic larvae were identified.The mean abundance of zooplankton was 1054.9 ind/m3.A rising trend of abundance from coastal waters to the middle of the Yellow Sea was observed, while the biodiversity showed an opposite trend.Based on the similarity of species composition, the zooplankton in the study area were clustered to three communities:South Yellow Sea coast community, South Yellow Sea central community, Yangtze River Estuary coast community.The community division in this study was generally consistent with previous studies, but the southern boundary of the zooplankton community in the South Yellow Sea has moved northward over the past five decades.
Composition of common fatty acids in sea cucumber at different latitudes
Yu LIU, Song-bai ZHOU, Xin-da ZHAO, Zhi-qiang FANG
2019, 38(4): 503-507.   doi: 10.12111/j.mes20190403
[Abstract](32) [FullText HTML](37) [PDF 1249KB](2)
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In this paper, we collected fatty acid data of Acanthopsis japonicus from 7 locations and fatty acid data of Holothuria from 3 locations to investigate the fatty acid changes with latitude, these data include sixteen carbon saturated fatty acid (16:0), eighteen carbon saturated fatty acid (18:0), Eicosapentaenoic acid (EPA, 20:5n-3) and Docosahexaenoic acid (DHA, 22:6n-3).The results showed that the percentage of EPA and DHA of Acanthopsis japonicus decreased with the reduce of latitude.The percentage of EPA and DHA of Holothuria decreased with the reduce of latitude, while the percentage of 16:0 and 18:0 increased with the reduce of latitude.
Characteristics of microbial Fe(Ⅲ) reduction by Fe(Ⅲ)-reducing strain ZQ21 from marine sediment
Hong-yan LIU, Hai-hua QIN, Shan WANG
2019, 38(4): 508-512, 520.   doi: 10.12111/j.mes20190404
[Abstract](37) [FullText HTML](44) [PDF 1710KB](2)
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The sludge collected from the sea sediment in Bohai was enriched to isolate Fe (Ⅲ)-reducing bacteria.A Fe(Ⅲ)-reducing bacterium, Enterococcus sp.ZQ21 (GenBank MF192756), was isolated using three layer plate method and identified by 16S rRNA gene sequence analysis.The characteristics of Fe(Ⅲ)-reduction by strain ZQ21 was investigated under different conditions.The results showed that strain ZQ21 had the highest Fe(Ⅲ)-reducing activity with Fe(Ⅱ) concentration of 113.14±3.46 mg/L, using pyruvate as electron donor among EDTA-2Na, citrate, glucose, acetate, pyruvate and formate.Fe(Ⅲ)-reducing activity by strain ZQ21 using ferric citrate and iron hydroxide as electron acceptors was not the same, with Fe(Ⅱ) concentration of 91.75±1.45 mg/L, 58.39±4.34 mg/L respectively.Fe(Ⅲ)-reducing activity was improved by the addition of anthraquinone-2-sulfonic acid sodium (AQS) when iron hydroxide was as electron acceptors.At the AQS concentration of 1.50 mmol/L, it had the highest Fe(Ⅱ) concentration of 80.28±3.95 mg/L, which increased Fe(Ⅱ) concentration by 27% compared with that of the control group.The Fe(Ⅲ)-reducing bacterium ZQ21 showed high Fe(Ⅲ)-reducing activity using soluble and insoluble electron acceptors, which will provide the relevant experimental evidence for the application of dissimilatory Fe(Ⅲ)-reducing bacteria for the purification of pollutants in the marine environment.
Evaluation of marine natural disaster risk in Sinopec Guangxi liquefied natural gas project
You-li SHEN, Yan SUN, Shou-wen ZHANG, Zi-mei HUANG
2019, 38(4): 513-520.   doi: 10.12111/j.mes20190405
[Abstract](34) [FullText HTML](34) [PDF 3228KB](3)
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Sinopec Guangxi liquefied natural gas (LNG) project is the important national clean energy program introduced by Guangxi coastal region, and its defense capacity of marine natural disaster (MND) could directly influence the Guangxi economic development.This study investigated the design standard and status quo of LNG coastal defense project (CDP), analyzed the design standard and parameter of storm surge and ocean wave, and evaluated the MND defense capacity of each section by comparing the right theoretical CDP elevations with the measured ones.Results showed that evaluation results of both design high tide level and extreme high tide level in consideration of sea level exceeded the preliminary design value.Evaluation results of wave height in south by southeast (SSE) direction were greater than the designed values, and in other directions they were fairly equivalence.The measured minimum elevation of CDP in southeastern and southwestern section was lower than the evaluation value, which carried some risk, and the CDP in other sections could defense the MND to some extent.
Distribution status of seagrass and its relationship with different habitat types in Liusha bay of Guangdong province
Chao ZHONG, Kai-feng SUN, Yan LIAO, Shi-bin QI, Qing-hua CHEN, Qian-ting YIN, Min XU
2019, 38(4): 521-527.   doi: 10.12111/j.mes20190406
[Abstract](66) [FullText HTML](65) [PDF 1448KB](4)
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Field investigation was carried out in 2016 and 2017, indexes including seawater, sediment, seagrass, plankton, zoobenthos and benthic macroalgae was obtained from Liusha bay of Guangdong Province.The results showed that average biomass and total distribution area of Halophila ovalis were 3.74 g/m2 and 26.9 hm2 with patches distribution pattern.Three habitat types were divided by principal component-cluster analysis of seawater parameters, they were "influence area of fish raft and fishing net" (Area Ⅰ), "shellfish farming area" (Area Ⅱ) and "non-cultured area" (Area Ⅲ).Comprehensive scores of principal component showed that Area Ⅰ was most polluted.Comparison between Area Ⅰ and Area Ⅱ showed that biomass of seagrass and zoobenthos, concentration of dissolved oxygen and active phosphate, phytoplankton abundance, salinity in Area Ⅰ were lower than that in Area Ⅱ, biomass of benthic macroalgae, N/P ratio, concentration of ammonia nitrogen, inorganic nitrogen and COD in Area Ⅰ were higher than that in Area Ⅱ.Total distribution area and biomass of seagrass bed in Liusha bay seriously degraded in 2017 when compared with that in 2002.Due to the production mode of fish raft and fishing net, mass multiplication of small shellfishes and low-salinity water derived from river input, seagrass biomass decreased.The relationship between seagrass biomass and other indexes reflected that shellfish culture played a positive role in seagrass survival and strong self-purifying ability of water was beneficial to seagrass growth.Also, this paper put forward the suggestions of protecting seagrass including promoting public consciousness, strengthening natural reserve management and implementating normal monitoring.
Study on the thermal tolerance of wide-area fish in the typical coastal NPP sites in China
Yong-ye LIU, Yu-fei WANG, Ya-hua QIAO, Yang YANG, Lu CHEN
2019, 38(4): 528-532.   doi: 10.12111/j.mes20190407
[Abstract](35) [FullText HTML](33) [PDF 1143KB](2)
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The study on the thermal tolerance of marine organisms in the receiving water body of thermal discharge is an essential part and important basis for establishing and perfecting the assessment of environmental impact of thermal discharge and its emission control standards.The adjacent waters of four typical coastal nuclear power plants (Hongyanhe, Shidao bay, Sanmen and Taishan NPP) were chosen as the research objects.The Chaeturichthys stigmatias was selected as the wide-area fish in the four typical coastal sites.The CTM (critical temperature maximum) tests and UILT50 (upper incipient lethal temperature) tests of the Chaeturichthys stigmatias were carried out.According to the results of these two kinds of tests, the rates of temperature rise had different effects on the CTM value of Chaeturichthys stigmatias captured from different sea areas in different seasons; the CTM and 24-hour UILT50 were in direct proportion to the initial temperature of the test; except for the rates of temperature rise and the initial temperatures of the tests, other key factors, such as the individual size and the growth stages of the species, were also the main influencing factors of the CTM value of the same species; the CTM of Chaeturichthys stigmatias was higher than its 24-hour UILT50 under the same condition.
The health status of the coral reef ecosystem and its ecological response to reclamation in Yelin bay, Wenchang, Hainan province
Hai-zhou CHEN, Yuan-chao LI
2019, 38(4): 533-539.   doi: 10.12111/j.mes20190408
[Abstract](39) [FullText HTML](40) [PDF 1530KB](5)
Abstract:
The distribution of coral reefs were investigated in Yelin bay, Wenchang, Hainan, by the line intercept transect methods to assess the health status of coral reef ecosystems, and the main factors affecting the health status of coral reef ecosystems were analyzed.Preliminary analysis showed that reclamation could be the main factors affecting the health status of coral reef ecosystems in Yelin bay.Taking the reclamation in Nanhai and Dongjiao areas as an example, the paper made a comparative analysis of the changes in the distribution of coral reefs (species, coverage, etc.), and the changes in the water quality in the study area before and after the construction.The result shows that the coral reefs have obvious ecological response to the reclamation construction, which makes it clear that reclamation construction is one of the most important factors affecting the coral ecosystem in the Yelin bay area.
Net-phytoplankton community and its relationship with environmental factors in the Wanshan islands adjacent sea
Ming DAI, Hua-xue LIU, Feng-xia WU, Xiu-yu GONG, Xiu-li LIAO, Hong-hui HUANG
2019, 38(4): 540-547, 554.   doi: 10.12111/j.mes20190409
[Abstract](38) [FullText HTML](40) [PDF 1795KB](2)
Abstract:
The abundance and spatial variation of net-phytoplankton were studied in Wanshan islands adjacent sea, based on field survey in May 2014.We analyzed the environmental factors, species composition and cell density of net-phytoplankton (mesh size 77 μm), aimed to understand the impact of water exchange on community structure.A total of 93 species of phytoplankton were identified.Bacillariophyta was the dominant functional group, represented the highest number of species, accounting for 73.1% of total abundance.There were significant effects between net-phytoplankton community structure and environmental factors such as water temperature, salinity, chemical oxygen demand, dissolved oxygen, pH, chlorophyll a and N:P. In the mixed area, Pearl river plume and oceanic water converged to form salinity fronts, the number of euryhaline species, offshore species and oceanic species were higher than other areas.Net-phytoplankton abundance was represented by euryhaline species in the mixed area, dominated by small particle size species of Bacillariophyta and the dominant species was Skeletonema costatum, with more than 90.2% of total abundance.Mean net-phytoplankton abundance was 5.96×108/m3 in the mixed area, about 4000 times higher than other areas.Bacillariophyta was still the most abundant group in the low salt area, accounting up to 80.6% total abundance, but the proportion of big particle size species of Bacillariophyta such as Bellerochea malleus, Coscinodiscus gigas, Hemidiscus hardmannianus and Planktoniella formosa increased obviously.Moreover, the proportion of big particle size species of Pyrrophyta such as Ceratium breve, C.fusus, C.macroceros and Noctiluca scintillans increased in the high salt area, and Pyrrophyta further increased to 40.7%, where Bacillariophyta and Pyrrophyta became the dominant group together.The superiority of Skeletonema costatum is particularly prominent, together high phytoplankton abundance, support high primary production in Wanshan islands adjacent sea.
The speciation and ecological risk of heavy metals in the ballast tank sediments from a shipyard of Jiangsu province, China
Bao-yi LV, Liang-long CHEN, Wan-lin LUO, Wen TIAN, Jing LI, Di ZHANG, Xiao-fei CHEN
2019, 38(4): 548-554.   doi: 10.12111/j.mes20190410
[Abstract](35) [FullText HTML](37) [PDF 1545KB](4)
Abstract:
Tessier sequential extraction procedure was used to analyze the distributions of six kinds of heavy metals in the ballast tank sediments from 10 ships.The ecological risks of the heavy metals were evaluated according to the potential ecological risk index and the ratio of secondary and primary phases.Results show that the average concentration of Zn and Cd are 3915.73×10-6 and 6.17×10-6, which present as the highest and the lowest contents in all of ballast sediments, respectively.In this study, Ni, Pb and Cr are found mainly distributed in the residual form, while Cd mainly exists in the organic and residual fraction.Cu is primarily belonged to the organic form and Zn mainly bounds to the Fe/Mn oxides.Hakanson ecological risk index indicates that the ecological risk of heavy metals is in the order of Cd > Zn > Cu > Pb > Ni > Cr.The risk evaluation of heavy metal based on speciation shows that the pollution of Cr, Ni and Pb in the sediments was light, while the Cd and Zn were at the level of heavy pollution.In conclusion, the heavy metals in ballast tank sediments have high potential bio-toxicity and reasonable managements and treatments are required to prevent the marine environment pollution.
Research on iron speciation in surface sediments in intertidal zone of Yantai Sishili bay
Chen-chen WANG, Da-wei PAN, Hai-tao HAN, Xue-ping HU
2019, 38(4): 555-560.   doi: 10.12111/j.mes20190411
[Abstract](34) [FullText HTML](35) [PDF 2188KB](2)
Abstract:
To provide a theoretical basis for iron pollution in sediment, iron speciation in the sediments from the intertidal zone of Yantai Sishili bay was studied in this paper.Contents of exchangeable, carbonate, Fe-Mn oxide, organic and residual iron in surface sediments were analyzed by Tessier sequential extraction procedure.Distribution and correlation of total iron and different iron speciation in surface sediments were discussed in detail.The results showed that the contents of iron in different sampling sites had no significant difference.The iron speciation was dominated by residual iron with percentage of 56.43%~85.92%, while the percentage of bio-available fraction iron was 14.08%~43.57%.Correlation analysis showed that the content of total iron was mainly controlled by residual iron.Correlation between exchangeable iron and other iron forms as well as total iron reflected the migration of iron between water and sediment.
Effects of microorganism and algal decomposition on nitrogen and phosphorus release from the sediments in Rongcheng Swan lake
Wen-bin ZHANG, Zhao-jie DONG, Shu-tong XU, Li GAO
2019, 38(4): 561-567.   doi: 10.12111/j.mes20190412
[Abstract](28) [FullText HTML](44) [PDF 1472KB](1)
Abstract:
In Rongcheng Swan lake, the sediments and Chaetomorpha were collected to study the changes of nitrogen and phosphorus contents in water under different microbial activities and algae conditions in the laboratory, and the influence of algal decomposition and microbial activity on the release of nutrients from the sediments was discussed.Under the condition without algae, the contents of total nitrogen and total phosphorus in water at different treatments changed at the range of 0.42~11.71 mg/L and 0.02~0.32 mg/L, which fluctuated over time during the experiment.In the middle and late stages, the order of nitrogen and phosphorus contents at different microbial treatments was mercuric chloride > glucose, control > formaldehyde.Under the condition with algal decomposition, the contents of total nitrogen and total phosphorus in water were much higher than those without algae, which ranged at 5.43~34.76 mg/L and 0.28~1.80 mg/L, respectively.The contents of nitrogen and phosphorus in water were high in the early stage, which decreased with time after that.In the early stage, total nitrogen and total phosphorus contents at different treatments followed the orders of mercuric chloride > glucose > control > formaldehyde and mercuric chloride > glucose, formaldehyde > control, respectively, while the difference among treatments decreased at the late period.Under the same microbial activity, the contents of nitrogen and phosphorus with algae were significantly higher than those without algae.At the end of experiment, microbial activities in sediments were relatively high under the condition with algae, which followed the order of control > glucose, mercuric chloride >> formaldehyde.Under the condition with algal decomposition, microbial activity had a significant effect on nitrogen and phosphorus releases from the sediments in Swan lake.The release amount of nitrogen and phosphorus from the sediments was high when microbial activity was stronger.
Research on coordinated development of marine ecological-economic system —taking Hainan province as an example
Qiang GAO, Tao LIU, Yan WANG, Chu-chen DING
2019, 38(4): 568-574.   doi: 10.12111/j.mes20190413
[Abstract](37) [FullText HTML](39) [PDF 1299KB](4)
Abstract:
In recent years, sum of results in the development of marine economy and building a powerful marine province were obtained in Hainan province.At the same time, there were many nu-harmonious factors merging in the marine ecological-economic system.Based on the theory of synergism, ecological economy, and the statistical data from 2005 to 2014, the evaluation index system of marine ecological-economic system was built, the marine ecological-economic system development level, coordination degree, and coordination development degree of Hainan province were calculated, analyzed and evaluated, the Marine ecological-economic system coordination development stage of Hainan province was determined.Finally, the suggestions were advanced.Studies have shown that marine ecological-economic system of Hainan province and its each subsystem coordination degree were on high quality coordinated development stage, the coordinated development degree was on the rise wholly, but the overall level of development were still a lot of room to improve.
Influence on the sandy coast evolution of the ocean engineering——A case study of artificial Riyue island, Wanning city, Hainan Island
Han-ying LI, Hong-yu ZHANG, Xia WANG, Hong-bing YU, Yu-fen XU, Xing-jian LIU, Ye-chun ZHANG
2019, 38(4): 575-581.   doi: 10.12111/j.mes20190414
[Abstract](37) [FullText HTML](43) [PDF 6907KB](5)
Abstract:
The construction projects on artificial Riyue islands have led to a fast change of coastal erosion and deposition on Riyue bay.The erosion of the southwest coast has threatened the development of the vitica mangachapoi forest natural reserves on the land.Monitoring and management of Riyue bay becomes an urgent demand.With the studies of multi-temporal remote sensing images and four groups of costal testing data, following erosive and depositional effects of constructions on Riyue bay can be discussed.Due to the depositional growth of shadow zone of artifical Riyue islands, a tombolo was formed in 2016 with a width of 370 meters and a length of 1, 500 meter; at the northeast side of artifical Ri island, erosion was created because of the wave refraction and diffraction after the construction was done, witch with a width of 20 meters and a length of 380 meters.At the southeast side of artifical Ri island, severe erosions and retreats were found.The erosive width is around 40 meters and the erosive length is around 2, 000 meters.The construction projects on artifical Yue island have improved the erosive problems on southeast side.However, 800 meters of costal line still lays in an erosive state.Considering the natural situations and technical capacities comprehensively, the combination of groyne, artificial sand filling as well as ecological conservation of ipomoea pes-caprae would be the most suitable solution.
Impacts of the shoreline change in Qinzhou bay on the tide and water exchange of Maowei sea
Li-ling YANG, Lin WANG, Fang YANG, Liu-zhu YANG
2019, 38(4): 582-588.   doi: 10.12111/j.mes20190415
[Abstract](28) [FullText HTML](39) [PDF 14263KB](3)
Abstract:
Since 2005, nearly 3000 hm2 water area were reclaimed in Qinzhou bay, change of shoreline is very significant.By a 2D numerical simulation of tidal current in Qinzhou bay, influence of shoreline change on dynamics and water exchange in Maowei sea, upstream of Qinzhou bay were discussed form aspect of tide current characteristics, tidal flux and water change, etc.Among them, the exchange period of water is characterized by a half exchange time of total load, to avoid the deviation caused by position of sampling points in single point concentration half exchange time, and the deviation caused by water volume difference at different tide period in average concentration half exchange time.The results show that:by the change of shoreline, mouth of Qinzhou bay narrowed further and tidal volume of it decreased; to the Maowei sea, the tidal range and flow velocity decreased, the tidal flux diminished 1.30%~1.53%, and the half-exchange period increased 51 hours, the tide and water exchange capacity were weakened.
Concentration and composition of polychlorinated biphenyls in the water of the East China Sea
Min-qiao LI, Tian LIN, Yuan-yuan LI, Zhi-gang GUO
2019, 38(4): 589-593, 601.   doi: 10.12111/j.mes20190416
[Abstract](31) [FullText HTML](37) [PDF 1713KB](1)
Abstract:
The East China Sea (ECS) is considered a heavily polluted area of polychlorinated biphenyls (PCBs) due to the input of industrial wastewater from the Yangtze River, Fujian and Zhejiang coastal runoff and emissions from adjacent e-waste disposal sites.In this study, eleven surface water samples were collected from the ECS to determine the occurrence of PCBs in the seawater by the "Science Ⅲ" scientific research ship during October 2012.The PCB concentrations of the water from ECS ranged from 0.59 to 1.68 ng/L, and the values were at a middle-low level compared with other studying areas.There was a significant negative correlation between concentration of PCBs and salinity, indicating that the coastal runoff was an important way for PCBs transport in the ECS.The profile of PCB homologues was dominated by less chlorinated compounds, i.e.tri-PCBs, tetra-PCBs and penta-PCBs, which related to the historical production and usage of PCBs in china.The concentrations of different PCB congeners were consistent with the theoretical ones which obtained from the Kow values, indicating the physicochemical properties was an important factor affecting the occurrence of PCBs in the water.Besides, a relatively higher abundance of hexa-PCBs was observed in the seawater from the ECS, hinting that the e-wastes treatment emissions from coastal areas might be a potential source.
Study on the potential tsunami hazard of adjacent trenches in the southeast coast of China
Qiang HUANG, Hui-min JING, Pei HU
2019, 38(4): 594-601.   doi: 10.12111/j.mes20190417
[Abstract](31) [FullText HTML](38) [PDF 9300KB](1)
Abstract:
In view of the possibility of a large potential earthquakes in the adjacent trenches along the southeastern coast of China, a numerical simulation of the Mw9.0 earthquake tsunami in both the Ryukyu Trench and Manila Trench is conducted using a shallow water numerical model GeoClaw based on the finite volume method.The results show that both the Ryukyu Trench and Manila Trench released tremendous energy at the time of the earthquake and spread to the coast of China in the form of tsunami waves.Among them, the tsunami triggered by the Ryukyu Trench earthquake reached the northern part of Fujian province three hours after it spread over the East China Sea continental shelf, and affected the coastal areas of Zhejiang, Shanghai and Jiangsu in the next two hours.The tsunami wave height generally reached above 0.5 m and local coasts of Zhejiang and Shanghai is above 1 m.The Manila trench earthquake and tsunami propagation process was smooth and reached the coast of Hainan two hours later, and in turn affected Zhanjiang, Macao, Hong Kong, Xiamen, Kaohsiung and other coastal areas.The wave height of tsunami generally reached above 2 m, and the coastal areas of Macao and Hong Kong reached more than 5 m, facing serious danger levels.Considering the continuous construction of offshore projects such as ports, nuclear power plants and drilling platforms in the southeast coast of China, it is necessary to study the potential tsunami threats and take corresponding measures.
Characteristics and dry deposition fluxes of organochlorine pesticides (OCPs) in atmospheric particulate matters in Western Taiwan Strait during autumn and winter
Qi-bin LAO, De-zhi BU, Ke-xin ZHANG, Xia SUN, Jin-pei YAN, Fa-jin CHEN, Li-qi CHEN, Li-ping JIAO
2019, 38(4): 602-607, 614.   doi: 10.12111/j.mes20190418
[Abstract](34) [FullText HTML](42) [PDF 2257KB](2)
Abstract:
To explore the OCP pollution characteristics of atmospheric particles, possible sources and dry deposition fluxes, 20 OCP compounds were examined in autumn and winter from 2006 to 2008 in the Western Taiwan Strait (Xiamen island, Fujian Province).The results showed that DDTs, HCHs and Methoxychlor were the main component of OCPs in the atmospheric particles.The concentrations of OCP compounds in winter were higher than autumn, which is influenced by the air mass sources during winter in Northern China.Compared with other areas, the average levels of OCP compounds in the atmospheric particles of Xiamen island, which is similar to the levels of background areas.Source apportionment indicated that DDTs, Chlordanes and Endosulfans were mainly historical residue, and the HCHs was mainly effected by industrial HCHs.The total dry deposition flux of OCPs to Xiamen island was 3.49 ng/m2/d and 9.25 ng/m2/d in winter and autumn, respectively, and the average input to the adjacent waters was 20.03 kg and 52.45 kg in autumn and winter, respectively.
The grain size effect of 7Be activity in surface sediments of Chongming tidal flat, China
Mei-gui WU, Feng ZHAO, Jin-long WANG, Jin-zhou DU, He-quan GU
2019, 38(4): 608-614.   doi: 10.12111/j.mes20190419
[Abstract](31) [FullText HTML](34) [PDF 2678KB](1)
Abstract:
The time-series surface sediments were collected monthly in high flat phragmites australis zone, middle flat scirpus triqueter zone and low flat zone, respectively, at Chongming tidal flat which lies in Changjiang Estuary during July 2010 and February 2011.By using a water elutriation apparatus, sediments were separated into four size fractions from 8~16 μm to >63 μm which were called A (the coarsest), B, C and D (the finest).In order to know the distribution of 7Be in different size fractions and different seasons, sediment grain size was measured as well as 7Be activity.The following conclusions were drawn:In the same level the coarse-particle fraction exhibited an offshore increasing trend, and the fine fraction showed a decreasing trend.The activities of 7Be generally decreased as the grain size increased.Correlation analysis between grain size and 7Be activity showed that the 7Be activity of sediment in high and middle tidal flat were influenced by the precipitation more than that of the low tidal flat.The correlation between grain size and 7Be activity at station 14# was weakest among all the sampling stations.However, there was no obvious seasonal difference for the correlation between grain size and 7Be activity.Our study showed that the grain size effect of 7Be activity should be considered when 7Be is utilized to trace transport and deposition of particles in the estuary and coastal areas on a seasonal scale.
Study on the current characteristics in the eastern area of Liaodong bay in autumn based on synchronous observations
Hui-hui CAO, Yuan CHEN, Qian ZHAO, Jing Wang
2019, 38(4): 615-620.   doi: 10.12111/j.mes20190420
[Abstract](32) [FullText HTML](37) [PDF 8524KB](3)
Abstract:
Based on the synchronous observed current data of seven stations in the east side of Liaodong bay in autumn, we analyzed and compared the characteristics of tidal and residual current by means of harmonic analysis.The results showed that:(1)The dominant tidal current constituent was M2 with the maximum speed ranging from 35.8 cm/s to 69.8 cm/s, and the major axis directions of M2 and K1 tidal current were basically consistent with the shoreline.(2)The regular semi-diurnal tidal current in the north of Liaodong bay was obvious, while it was mainly irregular in the central and south of Liaodong bay.The north part of Liaodong bay and the south part of Jinpu bay mouth belong to the strong tidal zone, while the tidal current in the north and middle parts of Jinpu bay mouth were relatively weak.Furthermore, the directions of maximum possible tidal current were parallel to the coastline approximately.(3)The residual current was weak in the eastern area of Liaodong bay, and was characterized by the southward migration along the coastal line, therefore the long-term transport effects of pollutants could not be ignored.
Techniques and Methods
A Convolution neural network model with adaptive learning rate and its application-a case study of remote sensing classification of coastal wetland
Chen CHEN, Yi MA, Ya-bin HU, Jing-yu ZHANG
2019, 38(4): 621-627.   doi: 10.12111/j.mes20190421
[Abstract](33) [FullText HTML](38) [PDF 6771KB](3)
Abstract:
Coastal wetlands are important ecosystems.To monitor the wetland types distribution of the coastal wetland is of great significance for protecting and utilizing coastal wetlands.The learning rate in the traditional convolution neural network (CNN) model is a fixed value that is manually set.In this paper, a CNN model with adaptive learning rate is proposed, and the optimal value of the learning rate is automatically calculated by using the cost function as the objective function, which makes the CNN model adaptive.Based on the CHRIS hyperspectral remote sensing image data of the Yellow River estuary coastal wetland, the CNN model classification method proposed in this paper is validated and optimized.The experimental results show that:The adaptive learning rate CNN model has the highest overall classification accuracy in the interval of[0, 1] for different learning rate search interval, which means that it is necessary to fine tune the interval[0, 1] only to ensure better classification accuracy in the process of learning optimization.For the different the initial learning rate, the accuracy and stability of the adaptive learning rate CNN model are higher than those of the traditional CNN model, indicating that the model proposed in this paper is less sensitive to the initial value.In the case of reducing the number of training samples, the stability of the two model classification accuracy have different degrees of reduction.However, the adaptive learning rate CNN model has high stability under the condition that the training sample is more than 1.35% of the total sample, which indicates that the model proposed in this paper has a certain ability to adapt to the small sample.
Universal design method of ocean environment monitoring systems
Ke-yong HU, Run-tian GENG, Fei-fei SHEN, Qu WU, Zhong-wen GUO
2019, 38(4): 628-633.   doi: 10.12111/j.mes20190422
[Abstract](32) [FullText HTML](65) [PDF 6717KB](2)
Abstract:
This paper proposes a universal design method for ocean environment monitoring system.An ocean environment monitoring system can be separated into collection layer, data layer and application layer.The key technology in three layers is presented:collection program in assistance with configuration tool can obtain observations from multiple heterogeneous sources, storage requirements can be satisfied without database modifications and application client can be fast generated based on functional module library.The method has been applied in IEEE standard P2402-based monitoring system developments.It is proved to be feasible and effective in the development cases for different ocean environment monitoring systems.
The comparative result analysis and method evaluation of two multiple parameters of water quality on-line monitoring
Li-na CUI, Ren XU
2019, 38(4): 634-638.   doi: 10.12111/j.mes20190423
[Abstract](28) [FullText HTML](43) [PDF 4908KB](2)
Abstract:
The article which illustrates the comparative analysis and the method evaluation between the results of standard methods and the two online multi-parameter water quality analyzers.The results show that the parameters such as temperature, salinity, dissolved oxygen, pH and turbidity of the two water quality analyzers have good relativity to the results from standard methods.There are some diversity results from specially appointed factors due to the difference between principles of methods, interference factors, methods of sample collection and so on.Online multi-parameter water quality analyzers can be used for operational works because the ability of high frequency continuously monitoring, it is an essential supplementary to traditional methods.
The parcel sea map-making technology and method
Dao-wei YUAN, Yan ZHANG, An-ning SUO, Ke CAO, Jian-hua ZHAO
2019, 38(4): 639-643.   doi: 10.12111/j.mes20190424
[Abstract](33) [FullText HTML](40) [PDF 1258KB](2)
Abstract:
As a main figure of immovable property certificate and parcel sea archives, the parcel sea map is an important basis for affirming the sea use management authority, it accurately records parcel location, boundary points, boundary line and its relationship with adjacent parcel.The parcel sea map elements, content and compilation process and methods are discussed separately in the paper.In addition, combined with standard requirements and drawing experience, from a perspective of the parcel sea map making, describes the key technical links in the drawing process, aiming at providing technical reference for drawing the parcel sea map, based on the ArcGIS software platform.
Method comparison and analysis of influence factors for determination of dissolved total nitrogen in seawater
Yan WANG, Yan-jie WANG, Shi-lan ZHAO, Zhen WANG, Zi-wei YAO
2019, 38(4): 644-648.   doi: 10.12111/j.mes20190425
[Abstract](30) [FullText HTML](40) [PDF 3704KB](2)
Abstract:
Persulfate oxidation method is the conventional method for the determination of dissolved total nitrogen in seawater.Based on the different ways of nitrate reduction, persulfate oxidation method can be categorized into two types:zinc-cadmium method and cadmium-copper method.Combined with the results of dissolved total nitrogen in seawater measured by 17 laboratories, the comparison of the determination of dissolved total nitrogen in seawater using these two methods was done, and the influencing factors were discussed.The internal-laboratory results showed good precision, and the inter-laboratory comparison results indicated that the zinc-cadmium method was more fluctuating than the cadmium-copper method.For the same seawater sample, lower values were measured by the zinc-cadmium method compared with the cadmium-copper method.Under the condition of using the same experimental reagents and water, the measured concentrations of dissolved total nitrogen with both methods fluctuated obviously, indicating that the impurities from digestion bottle, the nitrate reduction ways and the contamination introduced during the experiment exerted significant impacts on the results of dissolved total nitrogen determination.
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](2339) [PDF 1206KB](23)
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](2247) [PDF 1172KB](8)
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](2497) [PDF 1239KB](3)
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](2447) [PDF 1366KB](7)
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](2455) [PDF 1311KB](13)
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](2338) [PDF 1290KB](7)
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](2399) [PDF 1281KB](2)
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](2478) [PDF 1214KB](6)
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](2511) [PDF 1089KB](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](2447) [PDF 1196KB](10)
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](2290) [PDF 1285KB](7)
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](2368) [PDF 1095KB](15)
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](2346) [PDF 1285KB](8)
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](2454) [PDF 1280KB](11)
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](2403) [PDF 1169KB](12)
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](2468) [PDF 1176KB](7)
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](2120) [PDF 1088KB](5)
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](2279) [PDF 1135KB](10)
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](1844) [PDF 1144KB](10)
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](2631) [PDF 1179KB](7)
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](2385) [PDF 1351KB](2)
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](1564) [PDF 1115KB](3)
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](1989) [PDF 1312KB](17)
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](2741) [PDF 1195KB](6)
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](2348) [PDF 1184KB](13)
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](2049) [PDF 1458KB](3)
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](2150) [PDF 1121KB](15)
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](2076) [PDF 1173KB](2)
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](1861) [PDF 1447KB](13)
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](2191) [PDF 1184KB](11)
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](1813) [PDF 1145KB](5)
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](1426) [PDF 1231KB](3)
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](1450) [PDF 1239KB](6)
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](1788) [PDF 1100KB](4)
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](2004) [PDF 1088KB](6)
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](1486) [PDF 1216KB](2)
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](1740) [PDF 1168KB](4)
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](1500) [PDF 1097KB](1)
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](1551) [PDF 1261KB](1)
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](1690) [FullText HTML](69) [PDF 1202KB](69)
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](1462) [PDF 1136KB](5)
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](1526) [PDF 1258KB](5)
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](1566) [PDF 1260KB](4)
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](1689) [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](1915) [PDF 1218KB](5)
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](2115) [PDF 1332KB](3)
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](1328) [PDF 1224KB](4)
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](1422) [PDF 1258KB](2)
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](1614) [PDF 1189KB](7)
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](1686) [PDF 1163KB](8)
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](1544) [PDF 1165KB](5)
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](1846) [PDF 1255KB](15)
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](1567) [PDF 2033KB](3)
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](1629) [PDF 1377KB](5)
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](1614) [PDF 1212KB](2)
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](1066) [PDF 2027KB](7)
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](1983) [PDF 1189KB](2)
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](1512) [PDF 1884KB](3)
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](1905) [PDF 1384KB](6)
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](1629) [PDF 1227KB](6)
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](1239) [PDF 1338KB](3)
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](1615) [PDF 1244KB](3)
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](1180) [FullText HTML](55) [PDF 1392KB](55)
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](1794) [PDF 1282KB](14)
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](1712) [PDF 1243KB](6)
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](1718) [PDF 1382KB](2)
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](1592) [PDF 1243KB](13)
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](1554) [PDF 1233KB](9)
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](1516) [PDF 1133KB](4)
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](2608) [PDF 1998KB](2)
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](1751) [PDF 1090KB](17)
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](1828) [PDF 1274KB](7)
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](1896) [PDF 1221KB](12)
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](1736) [PDF 1452KB](8)
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](1401) [PDF 1593KB](7)
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](1344) [PDF 1161KB](4)
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](1514) [PDF 1356KB](2)
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](1610) [PDF 1312KB](3)
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](1618) [PDF 1110KB](8)
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](1632) [PDF 1136KB](7)
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](1305) [PDF 1145KB](5)
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](1610) [FullText HTML](70) [PDF 3058KB](70)
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](1048) [FullText HTML](58) [PDF 1638KB](58)
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](1560) [PDF 1394KB](5)
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](1508) [PDF 1231KB](2)
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](1425) [PDF 1130KB](2)
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](1773) [PDF 1172KB](15)
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](1592) [PDF 1212KB](6)
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](1524) [PDF 1255KB](3)
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](1475) [PDF 1142KB](3)
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](1569) [PDF 1259KB](3)
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](1683) [PDF 1112KB](4)
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](981) [PDF 1179KB](3)
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](1345) [PDF 1730KB](8)
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](2050) [PDF 1259KB](5)
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](1334) [PDF 1239KB](3)
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](1534) [PDF 1915KB](1)
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](1837) [PDF 1210KB](7)
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](1069) [FullText HTML](61) [PDF 1568KB](61)
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](1664) [PDF 1106KB](3)

ChiefEditor:关道明

FirstTime:1982年 双月刊

Director:国家海洋局

Sponsor:国家海洋环境监测中心、中国海洋学会

Tel:0411-84783126

E-mail:hyhjkx@vip.126.com

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