洋山工程海域虾蟹类资源的初步分析  

Preliminary study on crab and shrimp stock biomass in waters around Yangshan Deepwater Port

作　　者：唐峰华[1,2] 沈新强[1] 史赟荣[1,2] 阮雯[1] 张忭忭[1] 

机构地区：[1]中国水产科学研究院东海水产研究所农业部海洋与河口渔业重点开放实验室,上海200090 [2]上海海洋大学海洋科学学院,上海201306

出　　处：《上海海洋大学学报》2010年第3期372-377,共6页Journal of Shanghai Ocean University

基　　金：国家科技支撑计划(2006BAC11B03)

摘　　要：根据2003年-2005年每年5月、8月和11月对洋山深水港一期工程施工海域(30°30′～30°54,N、121°45′～122°30′E)20个站点进行渔业资源监测调查,分析了该海域虾蟹类资源的种类组成、生物量、丰度、生物多样性、个体平均体重及幼体比例等的变化,并与工程前(2001年)相比较。结果显示:虾蟹类的种类基本逐年减少;3年平均的生物量和丰度比工程前低;多样性指数、平均个体体重和幼体比例也是呈逐年降低的趋势。这系列的变化反映出该海域渔业资源结构的改变朝小型化方向发展,群落结构趋于简单化,容易引起生态系统结构与功能的改变。说明洋山工程海域施工期对虾蟹类资源产生了一定程度的影响。The oceanographic survey was carried out in waters around the area of the First Phase Project of Yangshan Deepwater Port（30°30＇-30°54＇N,121°45＇-122°30＇E）in May,August and November from 2003 to 2005.The crab and shrimp stock biomass,species composition,biomass,abundance,biodiversity and the average weight of individual larvae ratio changes were compared with data collected before engineering（in 2001）.The results showed that：the species of crabs and shrimps,diversity index,average individual weight categories and the same proportion of larvae decreased gradually.Furthermore,the average biomass and abundance during 2003-2005 also decreased.These changes reflected that the structure of fishery resources developed towards small-scale and simplification,which made the ecosystem weaker to environmental changes.The results above suggested that Yangshan project had influence on crab and shrimp fishery resources during the construction period.

关 键 词：虾蟹类资源 种类组成 生物量 丰度 多样性 

分 类 号：S932.5[农业科学—渔业资源]