水产学报2018，Vol.42Issue(5)：684-693,10.DOI:10.11964/jfc.20170710892
莱州湾头足类的群落结构及其与环境因子的关系
Community structure of Cephalopods and its relationships with environmental factors in Laizhou Bay, Bohai Sea
摘要
Abstract
The community structure of Cephalopods and its relationship with environmental factors were analyzed based on the bottom trawl data of nine months from May 2011 to April 2012, in order to reveal the resource status of Cephalopods in Laizhou Bay. A total of 6 species belonging to 3 orders, 3 families, 4 genera, were collected by 148 hauls. Both the biomass density and the individual density were highest in October 2011 and lowest in March 2012. The annual average of biomass density and individual density were 3 111.39 g/h and 723.54 ind/h, respect-ively.Loligo sp.was the dominant species,with the annual index of relative importance(IRI)reaching up to 13097. The spatial distribution of individual density of Cephalopods changed with different month in Laizhou Bay. The individual density of Cephalopods was the highest in the central and southern Laizhou bay from June to July, and the highest in the central and northern Laizhou bay from August to November 2011. The individual density of Cephalopods were very low from March to May. CLUSTER and MDS analysis indicated that 9 months were di-vided into 4 groups at 85% similarity level. ANOSIM analysis indicated that the community structure of Cephalo-pods of random two groups were significantly different.SIMPER analysis indicated that Loligo sp.contributed the most to the group distinguishing. Pearson correlation analysis indicated that the density of zooplankton matched the density of Cephalopods best. Reproductive migration and wintering migration were the principal influence factors on the variation of spatial distribution of Cephalopods in Laizhou Bay. The present results would be help-ful to better utilizing and protecting the Cephalopods resources in Laizhou Bay.关键词
头足类/群落结构/空间分布/环境因子/莱州湾Key words
Cephalopods/community structure/spatial distribution/environmental factors/Laizhou Bay分类
农业科技引用本文复制引用
吴强,陈瑞盛,左涛,关丽莎,金显仕..莱州湾头足类的群落结构及其与环境因子的关系[J].水产学报,2018,42(5):684-693,10.基金项目
国家基础研究计划(2015CB453303) （2015CB453303）
国家重点研发计划(2017YFE0104400) （2017YFE0104400）
公益性行业(农业)科研专项(201303050) （农业）
山东省泰山学者专项(2008-67) （2008-67）
National Basic Research Program of China(2015CB453303) （2015CB453303）
National Key Research and De-velopment Program of China(2017YFE0104400) （2017YFE0104400）
the Special Fund for Agro-scientific Research in the Public In-terest(201303050) （201303050）
the Taishan Scholar Program of Shandong Province(2008-67) （2008-67）
