文章摘要
黄、东海渔业资源群落结构变化研究
Variations of fishery resource structure in the Yellow Sea and East China Sea
投稿时间:2018-11-20  修订日期:2018-12-20
DOI:
中文关键词: 黄海  渔业资源  群落结构  优势种
英文关键词: Yellow Sea  fishery resources  community structure  dominate species
基金项目:
作者单位
戴芳群 农业农村部海洋渔业可持续发展重点实验室 山东省渔业资源与生态环境重点实验室 中国水产科学研究院黄海水产研究所 
朱玲 农业农村部海洋渔业可持续发展重点实验室 山东省渔业资源与生态环境重点实验室 中国水产科学研究院黄海水产研究所 
陈云龙 1.农业农村部海洋渔业可持续发展重点实验室 山东省渔业资源与生态环境重点实验室 中国水产科学研究院黄海水产研究所 青岛 2660712. 青岛海洋科学与技术试点国家实验室 海洋渔业科学与食物产出过程功能实验室 青岛 266071 
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中文摘要:
      为了解黄海和东海渔业资源群落结构的变化,基于2013年6月(夏季)和2013年9月(秋季)黄、东海渔业资源底拖网调查数据,对渔业资源种类组成、优势种、渔获量空间分布、群落多样性和群落结构进行了研究。结果显示,在渔获中鉴定出渔业种类185种,其中底层鱼类92种、中上层鱼类31种、甲壳类48种、头足类12种和贝类1种。在鱼类中,鲈形目种类最多,27 科47属56 种,占鱼类总种类数的45.5%。夏季优势种为鳀 (Engraulis japonicus)、脊腹褐虾 (Crangon affinis)、带鱼(Trichiurus lepturus)和小黄鱼(Larimichthys polyactis),秋季优势种为三疣梭子蟹(Portunus trituberculatus)、小黄鱼、鳀和带鱼,优势种季节波动不大。秋季平均单位网次渔获量为46.60kg/h.net,高于夏季(39.35 kg/h.net) 。秋季航次调查中渔业资源较夏季更为集中,主要分布在长江口和吕泗渔场附近位置,其他断面渔获量较低。夏季航次群落多样性指数高于秋季航次。通过CLUSTER聚类分析,将黄、东海渔业生物群落分为2组,夏秋季两组界线变动不大,两组聚类形成可能受水温和长江径流影响。
英文摘要:
      In order to elucidate the dynamics of fishery resources structure in the Yellow Sea and East China Sea, based on the bottom trawl survey data collected from June 2013, September 2013, species composition, dominate species, spatial distribution of catch, community diversity and community structure of fishery species in Yellow Sea and East China Sea were studied. A total of 185 fishery species were collected, including 92 dermersal fish species, 31 pelagic species, 48 crustacean species,7 cephalopod species and one mollusk species. Among fish species, the richest species was found in Perciformes (27 families, 47 genera and 56 species). There was no obvious seasonal variation for dominate species. In summer, the dominate species were, sand shrimp Crangon affinis, hairtail Trichiurus lepturus, while in autumn, the dominate species were the swimming crab Portunus trituberculatus, yellow small croaker Larimichthys polyactis,anchovy Engraulis japonicus and hairtail Trichiurus lepturus. The average catch per haul was higher in autumn (46.60 kg/h.net) than that in summer (39.35 kg/h.net). The spatial distribution of fishery resource in autumn concentrated in Yangtze River estuary and lvsi fishing ground. The diversity indices of fishery species in summer were higher than that in autumn. The fishery biological communities could be divided into two groups by the cluster analysis. The separation between two groups was mainly influenced by the temperature and discharge of Yangtze River.
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