水生生物学报2018，Vol.42Issue(3)：606-615,10.DOI:10.7541/2018.076
浙江沿岸海域春季螺类群落结构特征及其与环境因子的关系
COMMUNITY STRUCTURE OF SNAILS AND ITS RELATIONSHIP WITH ENVIRONMENTAL FACTORS ALONG ZHEJIANG COAST IN SPRING
摘要
Abstract
Based on the survey data collected in April 2015 via bottom trawl along Zhejiang coast, this study identified the species composition and dominant species, as well as analysed the resource biomass and density, and community di-versity. In addition, the relationship between the community structure of snails and environmental factors was also ex-plored in this study. The results showed that 27 snail species were identified, and they belong to 2 orders, 15 families and 21 genera.The dominant species were Turritella bacillum and Siphonalia spadicea;The average biomass and den-sity were 246.64 kg/km2and 27.75×103ind./km2, respectively, whose distributions appeared to be inhomogeneous. However, the density in the northern area was lower than that in the middle-southern area. The average values for spe-cies abundance index (D), species diversity index (H′) and species evenness index (J′) were 0.36, 0.56 and 0.50, re-spectively, indicating the snail community diversity was on a low level. Species diversity index (H′) display spatial dis-tribution pattern, but the other two indexes remained almost constant in the study area. The ABC curve showed that snail community was unstable in spring. According to the CCA analysis, the distribution of snail community was af-fected mainly by depth, bottom temperature and bottom dissolved oxygen in the surveyed area.关键词
浙江沿岸/螺类/种类组成/资源密度/生物多样性/环境因子Key words
Zhejiang Coast/Snails/Species composition/Resource density/Biological diversity/Environmental factors分类
农业科技引用本文复制引用
卢占晖,朱文斌,徐开达,周永东,戴乾,卢衎尔..浙江沿岸海域春季螺类群落结构特征及其与环境因子的关系[J].水生生物学报,2018,42(3):606-615,10.基金项目
农业部公益性行业(农业)科研专项(201303047) （农业）
浙江省科技厅开展协同创新项目(2015F50005)资助[Supported by the Public Welfare Industry(Agriculture)Research Project of Ministry of Agriculture(201303047) （2015F50005）
Collaborative and Innovation Projects from Science and Technology Department of Zhejiang Provincial(2015F50005)] （2015F50005）
