西北太平洋海域表层浮游动物群落结构与其环境因子的关系  

Community structure of zooplankton and its relationship with environmental factors in the surface waters of the Northwest Pacific Ocean

作　　者：辛全栋 李向阳 肖雪艳 于小涛[2] 陈聚法[2] 王新良[2] 胡清静 江涛[2,3] 母昌考 XIN Quandong;LI Xiangyang;XIAO Xueyan;YU Xiaotao;CHEN Jufa;WANG Xinliang;HU Qingjing;JIANG Tao;MU Changkao(School of Marine Sciences,Ningbo University,Ningbo 315832,China;Yellow Sea Fisheries Research Institute,Chinese Academy of Fisheries Science,Qingdao 266071,China;School of Marine Sciences,Yantai University,Yantai 264005,China)

机构地区：[1]宁波大学海洋学院,浙江宁波315832 [2]中国水产科学研究院黄海水产研究所,山东青岛266071 [3]烟台大学海洋学院,山东烟台264005

出　　处：《宁波大学学报（理工版）》2023年第2期23-30,共8页Journal of Ningbo University：Natural Science and Engineering Edition

基　　金：国家重点研发计划“蓝色粮仓”专项(2019YFD0901401);中国水产科学研究院黄海水产研究所基本科研项目(20603022020006)。

摘　　要：2020年5月底至8月初在西北太平洋海域(41°11′24″—48°06′09″N,162°15′52″—169°34′09″E)进行了27个站位的浮游动物大面积调查,共鉴定出6个门类,28个浮游动物的主要类群,浮游动物的平均丰度为66.61 ind·m^(-3).该海域浮游动物的优势种为桡足类中的新哲水蚤(Neocalanus plumchrus)和太平洋哲水蚤(Calanus pacificus),其出现频率分别为88.9%和92.6%.浮游动物的平均丰度总体上呈现由北向南降低的趋势,多样性指数高值区主要位于调查海域中东部和东南部.浮游动物群落丰度与环境中叶绿素a(Chla)、PO_(4)^(3-)、SiO_(3)^(2-)具有正相关性,与温度和盐度具有负相关性.研究表明,该海域浮游动物的分布特征与水文环境特征契合度较高,其中温度、盐度及营养盐的分布差异是构成浮游动物空间格局分布差异的主要原因.In the present study,a field investigation was carried out to reveal the community structure of zooplankton in the Northwest Pacific Ocean(41°11′24″—48°06′09″N,162°15′52″—169°34′09″E)during June to August 2020.The results showed that zooplankton comprised 6 phyla and the average abundance of zooplankton was 66.60 ind·m^(-3).The dominant species of zooplankton in this sea area were Neocalanus plumchrus and Calanus pacificus in copepods,with their occurrence frequencies reaching 88.9%and 92.6%respectively.The average abundance of zooplankton generally decreased from north to south.The high diversity index was mainly located in the middle-east and southeast of the study area.Zooplankton community abundance was positively correlated with Chla,PO_(4)^(3-)and SiO_(3)^(2-),and negatively correlated with temperature and salinity of the seawater.The study suggested that the distribution of zooplankton was tightly coupled with the environmental factors,with temperature,salinity and nutrients as the main controlling elements for its distribution.

关 键 词：西北太平洋 浮游动物 群落结构 生物多样性指数 

分 类 号：Q958.8[生物学—动物学]