文章摘要
乐清湾甲壳类群落结构特征及其影响因素
Related affecting factors in community structure characteristics of the crustacean assemblages in Yueqing Bay
投稿时间:2019-04-11  修订日期:2019-07-20
DOI:
中文关键词: 乐清湾  甲壳类  生物多样性  群落结构  环境因子
英文关键词: Yueqing bay  crustacean  biodiversity  community structure  ?environmental factors
基金项目:国家重点研发计划项目(2018YFD0900904,2018YFC1406300,2017YFA0604904);浙江省重点研发计划项目(2019C02056);乐清湾海洋资源本底调查
作者单位E-mail
张琳琳 浙江省海洋水产研究所 1194648931@qq.com 
蒋日进 浙江省海洋水产研究所 jiangridge@163.com 
徐义平 乐清市水产科学研究所  
印瑞 浙江省海洋水产研究所  
陈峰 浙江省海洋水产研究所  
陈鹏 乐清市水产科学研究所  
彭欣 浙江省海洋水产养殖研究所  
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中文摘要:
      根据2016年5月、8月、11月和2017年2月在乐清湾海域的渔业资源调查数据,利用聚类分析、多元统计分析和冗余分析等方法,对该海域甲壳类的种类组成、生物多样性、群落结构特征及其与环境因子的关系进行了分析。结果显示,该海域共鉴定出甲壳类43种,隶属于2目18科28属,全年优势种为三疣梭子蟹、日本蟳和哈氏仿对虾。甲壳类群落结构季节间变化差异显著,夏季甲壳类种类数最多,冬季最少,优势种种类季节变化较小。对不同水深带的甲壳类群落结构分析发现,5~10m种类数最多,小于5m和大于10m种类数较少。单因素方差分析显示,不同水深甲壳类群落的丰富度指数(D)存在显著差异(P<0.05),均匀度指数(J')和多样性指数(H')均无显著差异(P>0.05)。冗余分析结果显示,温度、水深和浑浊度是影响乐清湾甲壳类群落结构季节变化的重要环境因子,其中水深对甲壳类分布的影响较大。
英文摘要:
      Based on the trawl data of fishery resources collected from comprehensive surveys?from?May?2016?to February?2017 inYueqing bay. Species composition, biodiversity index, community structure and its relationship with environmental factors?were examined by?cluster analysis, multivariate statistical analysis and redundancy analysis. The results showed that?a total of 43 species of crustacean?were identified, which belonged to 28?genera, 18?families?and 2 orders.?Portunus trituberculatus, Charybdis japonica?and Parapenaeopsis hardwickii were annual dominant?species. The species number of crustacean was?greatest in summer and the least in winter which varied significantly in four seasons, while?the composition of dominant species changed?slightly. The research about crustacean species in different depth indicated that the richest crustacean were in depth of 5~10 m while less in depth of less than 5 m and?more than 10 m.The?results?of?one-way?ANOVA?showed that the richness index(D) of crustacean community in different depth were distributed significantly (P<0.05), and no significant differences in evenness index?(J') and diversity index(H')(P>0.05).?Redundancy analysis?suggested that?temperature, depth?and turbidity were the?most important environmental factors affecting the crustacean?species composition and community structure characteristics. In particular, the depth has a great influence on the community structure of crustacean.
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