摘要
根据2009—2010年在东山湾及其邻近海域进行的4个航次底拖网的调查资料,分析了该海域的鱼类群落结构。调查共获得鱼类114种,其中暖水性鱼类有76种,暖温性鱼类有38种,优势种鱼类(IRI>1 000)共有8种,无常年优势种。多样性指数、季节更替指数和迁移指数分析显示,东山湾及其邻近海域各季节的Margalef种类丰富度指数(D)较低且季节变化明显,变化范围在3.70～5.34之间;Shannon-Weiner种类多样性指数(H′)较低;Pielou均匀度指数(J′)季节变化不明显;Jaccard相似性指数(Js)较低,季节间种类相似度较低。东山湾及其邻近海域鱼类群落结构稳定性相对较差。同时发现部分鱼类在湾内和湾外的分布与季节有关。
Fish community structure of Dongshan Bay and its adjacent areas was described according to the data of four bottom trawl surveys carried out from 2009 to 2010.In total,114 species including 76 warm-water species and 38 warm-temperate water species were found,of them,8 species were dominant（IRI1000） and none was year round dominant.Margalef index（D） was low and fluctuated seasonally between 5.93 and 8.09.Shannon-Wiener index（H′） was low.Pielou index（J′） was similar among seasons.Jaccard index（Js） was low,which indicated that less fish species overlapped seasonally.The fish community structure in Dongshan Bay and its adjacent areas was less stable.The distribution of some fish species internal and external Dongshan Bay and its adjacent areas associated with seasons.
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第4期51-57,共7页
Periodical of Ocean University of China
基金
国家自然科学基金项目(41176117)
国家海洋局第三海洋研究所基本科研业务费专项(海三科2010016)
国家海洋公益性行业科研专项(201105012)资助
关键词
东山湾
鱼类
群落结构
生物多样性
优势种
Dongshan Bay
adjacent area
fish community structure
biodiversity
dominant species
