2022年秋季南黄海浮游动物群落功能特征OA
Functional traits of zooplankton community in the South Yellow Sea during autumn 2022
为了解南黄海秋季浮游动物群落结构及功能特征,本研究基于2022年秋季在南黄海的采集样品,分析浮游动物群落的种类组成、丰度、优势种、功能特征及功能群.共鉴定浮游动物成体 84 种和浮游幼虫 28 类,其中桡足类种类最丰富.浮游动物群落平均丰度为(4 087.4±2 613.9)ind./m3,可以表层盐度 31 等值线为界划分为黄海沿岸组群和黄海中部组群 2 个组群.组群间的浮游动物种类组成(R=0.809,P<0.001)及环境因子(P<0.05)均存在显著差异.物种多样性(丰富度、均匀度和香农-威纳指数)表现为黄海沿岸组群高于黄海中部组群.黄海沿岸组群的优势种包括小拟哲水蚤(Paracalanus parvus)、拟长腹剑水蚤(Oithona similis)和异体住囊虫(Oikopleura dioica)等,功能特征以小型体长(<1 mm)、滤食捕食、杂食-植食及自由产卵占据优势.黄海中部组群在丰度上以桡足类占优势,功能特征以小型体长(<1 mm)、伏击捕食、杂食-植食和挂卵占据优势.基于功能特征划分的 9 个浮游动物功能群在两组群间的丰度比例差异较大.底层盐度是导致浮游动物群落功能特征以及功能空间差异的最主要因素(P<0.05),其次为叶绿素 a 浓度.研究结果可为了解南黄海秋季浮游动物群落的生态格局提供基础数据.
To explore the community structure and functional traits of zooplankton in the South Yellow Sea during autumn,this study analyzed species composition and abundance while identifying the dominant species,functional traits,and functional groups based on samples collected in 2022.A total of 84 adult species and 28 pelagic larvae were documented,with copepods being the most diverse.The average abundance was 4087.4±2613.9 ind./m3.Cluster analysis classified the assemblages into two distinct groups,namely,the Yellow Sea Coastal Group and the Central Yellow Sea Group,which were roughly demarcated by the sea surface 31 isohaline.Significant intergroup differences were detected in species composition(R=0.809,P<0.001)and environmental factors(P<0.05).Bio-diversity indices,species richness index,species evenness index,and Shannon-Wiener index,revealed that the Yel-low Sea Coastal Group was more diverse than the other group.Dominant species within the former included Para-calanus parvus,Oithona similis,and Oikopleura dioica,with functional traits dominated by small body size(<1 mm),current feeding,omnivore-herbivore,and broadcast spawner.The Central Group was dominated by co-pepods,with functional traits characterized by small body size(<1 mm),ambush feeding,omnivore-herbivore,and sac spawner bearing.The relative abundance of the two groups differed within the nine functional groups identified based on functional traits.Bottom salinity was identified as the primary driver of spatial variations in functional traits and space of the zooplankton community(P<0.05);it was followed by bottom temperature and chlorophyll-a concentration.This study provides fundamental data for further understanding the ecological patterns of zooplank-ton communities within the South Yellow Sea during autumn.
郑羽璇;葛汝平;陈洪举;庄昀筠;刘光兴
中国海洋大学 海洋环境与生态教育部重点实验室,山东 青岛 266100||青岛海洋科技中心 海洋生态与环境科学功能实验室,山东 青岛 266237中国海洋大学 海洋环境与生态教育部重点实验室,山东 青岛 266100||青岛海洋科技中心 海洋生态与环境科学功能实验室,山东 青岛 266237中国海洋大学 海洋环境与生态教育部重点实验室,山东 青岛 266100||青岛海洋科技中心 海洋生态与环境科学功能实验室,山东 青岛 266237中国海洋大学 海洋环境与生态教育部重点实验室,山东 青岛 266100||青岛海洋科技中心 海洋生态与环境科学功能实验室,山东 青岛 266237中国海洋大学 海洋环境与生态教育部重点实验室,山东 青岛 266100||青岛海洋科技中心 海洋生态与环境科学功能实验室,山东 青岛 266237
生物科学
南黄海浮游动物群落结构功能特征
the South Yellow Seazooplanktoncommunity structurefunctional traits
《海洋科学》 2026 (3)
1-16,16
国家自然科学基金项目(42076146)National Natural Science Foundation of China,No.42076146 本研究的数据及样品采集得到国家自然科学基金委员会共享航次计划项目(项目批准号:42149901)的支持.
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