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连江鱼类资源现状调查及资源衰退原因分析
引用本文:李捷,罗建仁,李新辉,谭细畅,王超,郭绍常.连江鱼类资源现状调查及资源衰退原因分析[J].淡水渔业,2007,37(3):49-53.
作者姓名:李捷  罗建仁  李新辉  谭细畅  王超  郭绍常
作者单位:1. 中国水产科学研究院珠江水产研究所,广州,510380
2. 广东省清远市渔政支队,清远,511518
基金项目:科技部科研院所社会公益研究专项基金,广东省科研计划项目
摘    要:于2005~2006年间对清远市筑坝后连江的鱼类种群结构状况进行了调查。在河流的上游、中游、下游三个江段采样,共采集到鱼类87种,分属于7目18科69属,优势种为亚科(占鲤科总数的29.4%)、鲌亚科(占鲤科总数的15.7%)鱼类。通过与历史资料比较发现,多种适应急流的鱼类、洄游或半洄游性鱼类和产飘浮性卵鱼类已在连江中上游消失,连江鱼类组成、结构和分布已发生了较大的变化。

关 键 词:鱼类  资源调查  连江  航闸  水坝
文章编号:1000-6907-(2007)03-0049-05
修稿时间:2006-11-20

Investigation of Fish Resources and Analysis of Resources Decline along Lianjiang River
LI Jie,LUO Jian-ren,LI Xin-hui,TAN Xi-chang,WANG Chao,GUO Shao-chang.Investigation of Fish Resources and Analysis of Resources Decline along Lianjiang River[J].Freshwater Fisheries,2007,37(3):49-53.
Authors:LI Jie  LUO Jian-ren  LI Xin-hui  TAN Xi-chang  WANG Chao  GUO Shao-chang
Institution:1. Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380; 2. Qingyuan Fishery Bureau, Qingyuan, Guangdong 511518
Abstract:In order to know the fish group structure after the dam built in Lianjiang River,a lot of investigation had been carried out from 2005 to 2006.87 freshwater fishes belonging to 7 orders,18 families and 69 genura were collected from 3 research localities.Pint-sized fishes of Gobioninae(29.4% of Cyprinidae)and Culterinae(15.7% of Cyprinidae)were preponderant.Compared with the history data,the species,structure and distribution changed greatly.
Keywords:fishes  resource investigation  Liangjiang river  ship gate  dam
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