瓯江口海域浮游动物群落结构与环境因子的相关性分析  

Correlation analysis of zooplankton community structure and environmental factors in the Oujiang River Estuary

作　　者：王雨航 李尚清 叶深[2,3] 唐未 秦松 范青松 邱文致 艾龙威 郑春芳 刘伟成 Wang Yuhang;Li Shangqing;Ye Shen;Tang Wei;Qin Song;Fan Qingsong;Qiu Wenzhi;Ai Longwei;Zheng Chunfang;Liu Weicheng(College of Life and Environmental Science,Wenzhou University,Wenzhou 325035,China;Zhejiang Mariculture Research Institute,Wenzhou 325005,China;Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bioresource,Wenzhou 325005,China)

机构地区：[1]温州大学生命与环境科学学院,浙江温州325035 [2]浙江省海洋水产养殖研究所,浙江温州325005 [3]浙江省近岸水域生物资源开发与保护重点实验室,浙江温州325005

出　　处：《海洋学报》2024年第3期98-110,共13页

基　　金：国家重点研发计划项目(2020YFD0900805);温州河口渔业资源养护试点专项调查研究项目(05202251)。

摘　　要：为探究瓯江口海域浮游动物群落结构与环境因子的相关性,分别于2021年3月(冬季)、5月(春季)、8月(夏季)、11月(秋季)对瓯江口海域的浮游动物及海水温度、盐度、叶绿素a浓度等环境因子进行了4个航次的调查。结果显示,本次调查共鉴定出浮游动物78种,其中包括16种浮游幼虫,隶属于8门14大类,夏季物种数最丰富(47种),冬季物种数最低(23种),优势种(Y≥0.02)有17种,其中桡足类占8种,如中华哲水蚤(Calanus sinicus)、中华华哲水蚤(Sinocalanus sinensis)、太平洋纺锤水蚤(Acartia pacifica)和背针胸刺水蚤(Centropages dorsispinatus)等。浮游动物的年平均丰度为(162.95±310.96)ind./m^(3),年平均生物量为(118.85±62.80)mg/m^(3),存在明显的季节变化差异,春季丰度和生物量最高,秋季最低;冬季丰度比夏季高,生物量低于夏季。浮游动物Shannon-Wiener多样性指数(H')、Pielou均匀度指数(J')和浮游动物Margalef丰富度指数(D)年平均值分别为1.500±0.702、0.656±0.270和2.301±1.087。Spearman相关性分析和典范对应分析结果表明,海水温度、盐度、叶绿素a浓度和浮游植物丰度是影响瓯江口海域浮游动物优势丰度的重要环境因素。这为瓯江口环境季节变化对浮游动物的影响研究提供科学参考依据,为瓯江口生物资源的可持续发展提供基础资料和理论依据。In order to explore the relationship between zooplankton community structure and environmental factors in the Oujiang River Estuary,four voyages were conducted in March(winter),May(spring),August(summer)and November(autumn)in 2021 to investigate the zooplankton and other environmental factors such as sea temperat-ure,salinity and chlorophyll a concentration in the Oujiang River Estuary sea area.The results show that 78 spe-cies of zooplankton are identified,including 16 species of larva,it belongs to 8 classes and 14 categories,with the highest number of species in summer(47 species)and the lowest number in winter(23 species).The dominant spe-cies(Y≥0.02)include Calanus sinicus,Sinocalanus sinensis,Acartia pacifica,and Centropages dorsispinatus,17 species.The average annual abundance of zooplankton is(162.95±310.96)ind./m^(3),and the average annual bio-mass is(118.85±62.80)mg/m^(3).The abundance and biomass of zooplankton are the highest in spring and the low-est in autumn.The abundance in winter is higher than that in summer,and the biomass is lower than that in summer.The average annual Shannon-Wiener diversity index(H'),Pielou evenness index(J')and Margalef richness index(D)are 1.500±0.702,0.656±0.270 and 2.301±1.087,respectively.Spearman correlation analysis and canonical correspondence analysis show that sea temperature,salinity,Chl a concentration and phytoplankton abundance are important environmental factors affecting the dominant abundance of zooplankton in the Oujiang River Estuary.It provides scientific reference for the study on the influence of seasonal environmental changes on zooplankton in the Oujiang River Estuary,and provides basic data and theoretical basis for the sustainable development of biological resources in the Oujiang River Estuary.

关 键 词：浮游动物 瓯江口 季节变化 环境因子 典范对应分析 

分 类 号：Q179.1[生物学—水生生物学] P714.4[生物学—普通生物学]