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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2014 Vol.33 No.5

Effects of the Gillnets on Fish Resources in the Yichang Reaches of the Yangtze River
Author of the article:MA Qin1, 2, 3, LIN Pengcheng1, 2, LIU Huanzhang1, 2, CAO Wenxuan1, 2, GAO Xin1, 2*
Author's Workplace:(1. Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; 2. The Key Laboratory of Aquatic Biodiversity and Conservation, Chinese Academy of Sciences, Wuhan 430072, China; 3. University of Chinese Academy of Sciences, Beijing 100049, China)
Key Words:gillnet; overfishing; fish resources conservation; fishing ban
Abstract:The catch data from 2004 to 2009 inthe Yichang reaches of theYangtze Riverwere analyzed to understand the effects of the gillnets on fish resources. A total of 40 species belonging to 5 orders, 8 families were collected by gillnets. The lotic species were dominant in the catches, such as Coreius heterodon, Coreius guichenoti, Pelteobagrus vachelli, Leiocassis longirostris, Rhinogobio cylindricus. The body length of the dominant species was obviously less than those at their first maturity. The results indicated that the gillnets mainly captured the juveniles of fluvial meso-demersal fish which caused overfishing on the fish resources in theYangtze River. For effective conservation, it was suggested that a complete ban on fishing should be implemented in theYangtzeBasin.
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