| 长江安庆江段鱼类调查及物种多样性初步研究 |
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| 引用本文： | 张敏莹,徐东坡,刘凯,施炜纲.长江安庆江段鱼类调查及物种多样性初步研究[J].湖泊科学,2006,18(6):670-676. |
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| 作者姓名： | 张敏莹 徐东坡 刘凯 施炜纲 |
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| 作者单位： | 中国水产科学研究院淡水渔业研究中心,内陆渔业生态环境和资源重点开放实验室,无锡,214081 |
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| 基金项目： | 农业部海洋与河口渔业重点开放实验室长江水生生物资源保护与管理小额基金;世界自然科学基金;江苏省无锡市自然科学基金 |
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| 摘 要： | 对1990-2004年长江安庆江段鱼类及物种多样性进行了调查研究．该江段共有鱼类46种,分别隶属于9目14科．按迁徙习性可分为江湖半洄游性鱼类、洄游性鱼类、河口鱼类和定居性鱼类4大类型．小型定居性鱼类占优势,群落优势种为黄颡鱼、鲫、鲶、鲤．多样性特征值年间平均指标为:Margalef指数(R)1．54,Wilhm改进指数(H(?))2．14,McNaughton指数(Dw)0．44,Pielou指数(J’)0．75．经济鱼类趋于小型化,四大家鱼资源不容乐观．必须从根本上降低对长江的捕捞压力．
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| 关 键 词： | 长江安庆江段 鱼类调查 物种多样性 |
| 收稿时间： | 2005-09-26 |
| 修稿时间： | 2005-12-14 |
Ichthyologic survey and primary studies on diversity of fishery species in Anqing section of the Yangtze River |
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| ZHANG Minying,XU Dongpo,LIU Kai and SHI Weigang.Ichthyologic survey and primary studies on diversity of fishery species in Anqing section of the Yangtze River[J].Journal of Lake Science,2006,18(6):670-676. |
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| Authors: | ZHANG Minying XU Dongpo LIU Kai and SHI Weigang |
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| Institution: | Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Freshwater Fisheries Research Center of the Chinese Academy of Fishery Sciences. Wuxi 214081, P. R. China |
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| Abstract: | Ichthyologic survey and primary studies on diversity of fishery species in Anqing section of the Yangtze River were carried out during 1990 - 2004. Fishes of 9 orders, 14 families and 46 species were collected in this area. There were four ecological types. They were semi-migrated fishes between the Yangtze River and lakes, migrated fishes between the Yangtze River and the sea, estuarine fishes and resident fishes. Most of the fishes were smallsized and resident. Dominant species were yellow catfish, crucian, catfish and common carp. The diversity indexes from 1990 to 2004 were analysed that Margalef s index was 1. 54, Wilhm's index 2. 14 , McNaughton's index 0.44 and Pielou's index 0. 75. Economical fishes had a trend to he small and the rescoures status of the four major Chinese carp were worring. Intensity of fishing must be reduced in the Yangtze River. |
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| Keywords: | Anqing section of the Yangtze River ichthyologic survey diversity of fishery species |
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