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Community composition,co-occurrence,and environmental drivers of bacterioplankton community in surface and 50-m water layers in the subarctic North Pacific

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Journal of Oceanology and Limnology 2023年第6期41卷 2309-2323页

作者： Quandong XIN jufa chen Changkao MU Xinliang WANG Wenjing LIU Tao JIANG Yan LI College of Life Sciences Yantai UniversityYantai 264005China Key Laboratory of Sustainable Development of Marine Fisheries Ministry of AgricultureYellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesQingdao 266071China School of Marine Sciences Ningbo UniversityNingbo 315211China School of Medicine Yunnan UniversityKunming 650091China

The Western Subarctic Gyre(WSG)is one of the two gyre-systems in the subarctic North Pacific known for high nutrient and low-chlorophyll ***,the bacterioplankton in marine water of this area,either in terms of the taxonomic composition or functional structure,remains relatively unexplored.A total of 22 sampling sites from two water layers(surface water,SW and 50-m layer water,FW)were collected in this *** physiochemical parameters of waters,Synechococcus,and bacterial density,as well as the bacterioplankton community composition and distribution pattern,were *** nutrient concentrations of DIN,DIP,and DSi,Chl-a concentration,and the average abundance of heterobacteria in FW were higher than those in ***,temperature and the average abundance of Synechococcus and pico-eukaryotes were higher in SW.A total of 3269 OTUs were assigned,and 2123OTUs were commonly shared;moreover,similar alpha diversity patterns were observed in both SW and *** bacterioplankton community showed significantly obvious correlation with salinity,DIP,DIN,and Chl a in both SW and ***,Cyanobacteria,Bacteroidota,Actinobacteriota,and Firmicutes were the main phyla while Synechococcus_CC9902,Psychrobacter,and Sulfitobacter were the dominant genera in each sampling *** correlations that happened between the OTUs in the cooccurrence network were positive and *** edges and graph density were found in SW,indicating that more correlations occurred,and the community was more complex in *** study provided novel knowledge on the bacterioplankton community structure and the correlation characteristics in WSG.

关键词： Western Subarctic Gyre(WSG) marine water bacterioplankton community co-occurrence network

Distribution of chromophytic phytoplankton in the Western Subarctic Gyre of Pacific Ocean revealed by morphological observation and rbc L gene sequences

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Journal of Oceanology and Limnology 2023年第6期41卷 2166-2179页

作者： Tao JIANG Xiaohan QIN Guannan WU Huaxian ZHAO Xiaotao YU Xueyan XIAO Wenjing LIU Qingjing HU jufa chen Nan LI School of Ocean Yantai UniversityYantai 264005China Key Laboratory of Sustainable Development of Marine Fisheries Ministry of AgricultureYellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesQingdao 266071China Key Laboratory of Ministry of Education for Environment Change and Resources Use in Beibu Gulf Guangxi Key Laboratory of Earth Surface Processes and Intelligent SimulationNanning Normal UniversityNanning 530001China State Key Laboratory of Acoustics Institute of AcousticsChinese Academy of SciencesBeijing 100190China School of Medicine Yunnan UniversityKunming 650091China College of Ocean and Meteorology Guangdong Ocean UniversityZhanjiang 524088China

Western Subarctic Gyre(WSG),which possesses distinctive differences in oceanographic and biogeochemical processes,is situated in the northwest subarctic *** WSG is characterized by high nutrient and low *** carried out a field investigation in this area in summer 2020 and performed microscopic observation,cytometric counting,and RuBisCO large subunit(rbc L)gene analysis to understand the community structure and spatial distribution of chromophytic phytoplankton *** method revealed that total phytoplankton(>10μm,including Bacillariophyta,Dinoflagellata,Ochrophyta,and Chlorophyta)abundances ranged(0.6×10^(3))-(167.4×10^(3))cells/L with an increasing trend from south to *** and Pennatae diatoms dominated the phytoplankton assemblages in the southern and northern stations,*** chromophytic phytoplankton groups derived from rbc L genes included Haptophyta,Ochrophyta,Bacillariophyta,as well as rarely occurring groups,such as Xanthophyta,Cyanobacteria,Dinoflagellata,Rhodophyta,and *** the phylum level,Haptophyta was the most abundant phylum,accounting for approximately 30.80%of the total obtained operational taxonomic units in all *** and Bacillariophyta were the second and third most abundant phylum,and their relative abundance was 20.26% and 19.60%,***,redundancy analysis showed that high proportion of diatoms(e.g.,microscopic and rbc L methods)was positively correlated with nutrients(e.g.,dissolved inorganic nitrogen(DIN),dissolved inorganic phosphorous,and dissolved silicate(DSi))and negatively correlated with temperature and *** proportion of Ochrophyta,Rhodophyta,and Cyanobateria identified by rbc L genes was positively correlated with salinity and temperature and showed negative correlation to *** work is the first molecular study of phytoplankton accomplished in the WSG,and our results show some discrepancies between morphological observa

关键词： flow cytometry microscopic counting phytoplankton rbc L Western Subarctic Gyre

Oceanographic Condition in the Distribution Areas of Anchovy Engraulis Japonicus in the Yellow Sea and East China Sea

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Marine Science Bulletin 1999年第1期1卷 68-82页

作者： chen jufa and Ma ShaosaiYellow Sea Fisheries Research Institute, CAFS, Qingdao 266071

Based on the data obtained from the cooperative surveys by China and Norway from 1984 to 1994, this paper deals with the hydrographic characteristics of didribution areas of anchovy in the Yellow Sea and East China Sea from November to May. The relationships between distribution of anchovy and hydro-graphic environment are also analysed in this paper. The main research findings are briefly given below. (1) From November to March, the water temperature continually decreases and meanwhile the dense areas of anchovy move from north to south. The high schooling areas of anchovy are mainly distributed in the warm of cold front areas with temperature of 11-13℃. (2) In November and December, the Yellw Sea cold water-mass exists roughly between 50m depth and sea bottom. The thermo-balocline is approximately located at the 30 ~ 50m depth and the anchovy is usually distributed above the thermo-halocline In January and March, the Yellow Sea cold watermass disappears and the fish schools are distributed at the

关键词： Oceanographic condition Anchovy Yellow Sea and East China Sea

Progress on Research and Construction of Marine Ranching along the Coast of Shandong Province of China

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Journal of Shipping and Ocean Engineering 2014年第11期4卷 338-347页

作者： Jiao Li Changtao Guan Yong Cui jufa chen Jun Wang Wei Yuan Baoqing Yang Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Qingdao 266071 China Department of Marine Ranching Management Shandong Hydrobios Resources Conservation and Mangement Center Yantai64001. China

As a new fishery mode of low-carbon economy, marine ranching has played an important role in promoting sustainable development of fishery and construction of ocean economic zone in China. Since the year of 2000, environment improvement, stock enhancement and mariculture development have been given very high degree of importance along the coast of Shandong Province of China. Studies and tests on artificial reefs and marine ranching, including effect investigation of artificial reefs set up in Jiaonan coastal areas in 1980s, hydrodynamic characteristics experiment of artificial reef, study on material and configuration of artificial reef models, algae transplantation and seaweed beds construction, stock enhancement and releasing etc., have been carried out in recent years. Furthermore, the Restoration Plan of Fishery Resources of Shandong Province has been implemented since the year of 2005, which greatly boosted the construction of artificial reefs and marine ranching along the coast of Shandong. By June of 2010, the total investment on the construction of artificial reefs and marine ranching is over $77 million USD. One hundred artificial reef districts, with total area about 33,350,000 m2 have been set up. The construction of marine ranching along the coast of Shandong Province has been in certain scale and the economic, social and ecological effects are obvious.

关键词： Marine ranching artificial reef seaweed beds stock enhancement Shandong Province.

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夏季鄂霍茨克海公海区狭鳕渔场环境特征

应用生态学报 2000年第6期11卷 939-942页

作者：陈聚法唐启升中国水产科学研究院黄海水产研究所青岛266071

根据鄂霍茨克公海区狭鳕资源声学评估调查资料 ,研究了狭鳕分布状况及渔场环境特征 ,并分析了狭鳕行动分布与环境的关系 .结果表明 ,8月公海区狭鳕密集群位于 5 5°N以北、水深小于 5 0 0m的海域 ,其主要分布水层在 15 0～ 30 0m之间 ;... 详细信息

根据鄂霍茨克公海区狭鳕资源声学评估调查资料 ,研究了狭鳕分布状况及渔场环境特征 ,并分析了狭鳕行动分布与环境的关系 .结果表明 ,8月公海区狭鳕密集群位于 5 5°N以北、水深小于 5 0 0m的海域 ,其主要分布水层在 15 0～ 30 0m之间 ;调查期间狭鳕只为索饵群体 ,主要摄食太平洋磷虾 ,狭鳕密集区一般也为太平洋磷虾高密度分布区 ;8月公海区水温跃层大致在 0～ 5 0m之间 ,强度为 0 .2 5℃·m-1左右 ;冷水团位于 5 0～ 15 0m之间 ;由于温跃层的屏障作用和饵料因素的影响 ,狭鳕主要分布于冷水团以下的水层 .40 0m以下的水层狭鳕分布稀少 ,部分原因是溶解氧含量过低 .

关键词：鄂霍茨克海狭鳕分布渔场环境资源评估

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夏季白令海温跃层和中层冷水的分布特征

海洋水产研究 2000年第2期21卷 48-54页

作者：陈聚法中国水产科学研究院增养殖环境优化及污染控制重点开放实验室黄海水产研究所青岛266071

研究了夏季白令海阿留申海盆区温跃层和中层冷水的分布特征及形成机制。结果表明：（1）以水温为主要分析指标，调查海区自上而下（0～500m层）可分为上匀和层、温跃层、中层冷水和下匀和层；（2）温跃层广泛分布于大部分调查海域，绝... 详细信息

研究了夏季白令海阿留申海盆区温跃层和中层冷水的分布特征及形成机制。结果表明：（1）以水温为主要分析指标，调查海区自上而下（0～500m层）可分为上匀和层、温跃层、中层冷水和下匀和层；（2）温跃层广泛分布于大部分调查海域，绝大多数测站其深度在25～50m，强度在0.10～0．16℃／m，其中公海东南部为一相对强温跃区（≥0．15℃／m）；（3）中层冷水的上界深度在40～130m左右，下界深度在150～260m左右，厚度在40～220m左右，其中公海区中层冷水的厚度在100m以上，中层冷水内部水温在1～3℃。（4）涡动混合和对流混合的共同作用，是夏季白令海形成温跃层和中层冷水的主要原因。

关键词：白令海温跃层中层冷水分布形成渔业资源

胶州湾大沽河口潮滩水体N、P营养盐的时空分布

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海洋湖沼通报 2012年第2期 59-68页

作者：张帆葛长字陈聚法任一平中国海洋大学水产学院山东青岛266003 中国水产科学研究院黄海水产研究所山东青岛266071 山东大学威海分校海洋学院山东威海264209

根据2009年2、5,8和11月对大沽河口潮滩水体N、P营养盐浓度、盐度、溶解氧含量和大型底栖动物的调查,研究了大沽河口潮滩N、P的时空分布特征。结果表明,DIN在冬、春,秋季以NO3-N为主,其次为NO2-N和NH4-N。在夏季,NO3-N、NO2-N和NH4-N在... 详细信息

根据2009年2、5,8和11月对大沽河口潮滩水体N、P营养盐浓度、盐度、溶解氧含量和大型底栖动物的调查,研究了大沽河口潮滩N、P的时空分布特征。结果表明,DIN在冬、春,秋季以NO3-N为主,其次为NO2-N和NH4-N。在夏季,NO3-N、NO2-N和NH4-N在DIN中所占比重相当。N/P比值在夏季接近Redfield比值,在其它季节偏高。NO3-N浓度在冬季较高、夏季偏低;NO2-N浓度的季节变化不明显;NH4-N浓度在夏季较高、冬季偏低;PO4-P浓度在夏季较高、秋季偏低。NO3-N、NO2-N和PO4-P浓度主要自河道向东西潮滩递减,从近岸向湾内递减;NH4-N浓度无显著平面分布趋势,但在夏、秋季的西潮滩较高。NO3-N、NO2-N和PO4-P的分布主要受大沽河淡水注入的影响,同时在夏季受到浮游植物的吸收作用的显著影响,而NH4-N的分布则可能主要受到潮滩贝类等底栖动物NH4-N排泄作用的影响。潮滩在冬、春季为P中等限制潜在性富营养,在夏季为中等营养,在秋季为P限制潜在性富营养。

关键词：大沽河口潮滩营养盐时空分布潜在性富营养化

基于BP人工神经网络的大沽河湿地海水水质综合评价

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渔业科学进展 2015年第5期36卷 31-37页

作者：徐勇赵俊过锋乔向英张艳陈聚法农业部海洋渔业可持续发展重点实验室山东省渔业资源与生态环境重点实验室中国水产科学研究院黄海水产研究所青岛266071 中国海洋大学化学化工学院青岛266100

水体环境包含多个影响因素,因素间大多具有非线性相关性,为了能够客观地对大沽河湿地海水水质进行综合评价,以神经网络为基础,利用溶解氧、化学需氧量、无机氮、活性磷酸盐、石油类5个指标作为评价因子,建立了5×5×1拓扑结构的BP人工... 详细信息

水体环境包含多个影响因素,因素间大多具有非线性相关性,为了能够客观地对大沽河湿地海水水质进行综合评价,以神经网络为基础,利用溶解氧、化学需氧量、无机氮、活性磷酸盐、石油类5个指标作为评价因子,建立了5×5×1拓扑结构的BP人工神经网络模型,通过该模型对大沽河湿地水质进行综合评价。同时采用单因子评价方法、内梅罗指数法对该海域环境状况进行评价,以期更好的对比评价BP人工神经网络模型的优缺点。BP人工神经网络模型评价结果显示,大沽河河道内站点的水质均为劣Ⅳ类水质,入海河流断面及其周边海域也达到了Ⅲ类及以上水质标准。调查海域无机氮含量超标严重,劣Ⅳ类及以上站位的数量占总调查站位的59.3%,富营养化状态明显。通过单因子评价法、内梅罗指数法、BP人工神经网络3种评价方法对大沽河湿地水质进行评价,发现Ⅲ类及以上水质站位占总调查站位比例分别为89%、96%、56%。与单因子评价法、内梅罗指数法相比,BP人工神经网络模型设计合理、评价结果科学可靠,是一种更加快捷、客观全面及实用的水体质量评价方法。

关键词：大沽河湿地 BP人工神经网络海水水质综合评价

青岛文昌鱼自然保护区营养盐时空分布特征及富营养化评价

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渔业科学进展 2019年第5期40卷 34-41页

作者：王昊辛梅陈碧鹃朱琳夏斌张艳孙雪梅陈聚法曲克明上海海洋大学海洋科学学院上海201306 中国水产科学研究院黄海水产研究所农业农村部海洋渔业资源可持续发展重点实验室山东省渔业资源与生态环境重点实验室青岛266071 青岛海洋科学与技术试点国家实验室海洋生态与环境科学功能实验室青岛266071 青岛市渔业技术推广站青岛266071

本研究分析了2017年9月(夏季)和11月(秋季)青岛市文昌鱼(Branchidermus fasciatus)水生野生动物市级自然保护区营养盐含量的季节变化和平面分布,并对该海域进行了富营养化评价。研究结果显示,2017年溶解无机氮(DIN)平均含量夏季高于秋季... 详细信息

本研究分析了2017年9月(夏季)和11月(秋季)青岛市文昌鱼(Branchidermus fasciatus)水生野生动物市级自然保护区营养盐含量的季节变化和平面分布,并对该海域进行了富营养化评价。研究结果显示,2017年溶解无机氮(DIN)平均含量夏季高于秋季,NO2-N、NH4-N平均含量分别是秋季的1.98倍、1.44倍,而NO3-N和PO4-P平均含量低于秋季,分别是秋季的88.8%和47.6%。夏季DIN总体水平优于海水一类标准值,PO4-P总体水平优于海水一类标准值;秋季DIN总体水平优于海水一类标准值,PO4-P总体水平劣于海水一类标准值。从水平分布来看,夏季海水的DIN浓度分布趋势大致呈核心区>实验区>缓冲区的趋势;秋季海水的DIN浓度分布呈缓冲区>实验区>核心区。夏季N/P比值略高于Redfield比值,而秋季N/P比值较低于Redfield比值,DIN相对缺乏。根据潜在性富营养化评价模式,2017年保护区海域夏季和秋季营养水平较低,均属于贫营养水平。

关键词：文昌鱼自然保护区营养盐季节变化富营养化