Primary studies on structure of fishery community and species diversity in Changshu section of the Yangtze River
ZHANG Min-ying, XU Dong-po, DUAN Jin-rong, LIU Kai, SHI Wei-gang
Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Freshwater Fisheries Research Center of the Chinese Academy of Fishery Sciences, Wuxi 214081, China
Primary studies on structure of fishery community and species diversity in Changshu section of the Yangtze River were carried out during 2000-2006.Fishes,shrimps and crabs covered 13 orders,29 families and 66 species were collected in this area.Number of species belonging to Cypriniformes was the most and the second was fishes belonging to Perciformes.There were four ecological types,which were semi-migrated fishes between the Yangtze River and lakes,migrated fishes between the Yangtze River and the sea,estuarine fishes and resident fishes.Economical fishes were more than others.Dominant species were Parabramis pekinensis,Carassius auratus auratus,Coilia macrognathos,Coreius heterodon,Cu1ter ilishaeformis and Hemiculter leucisculus.The diversity indexes from 2000 to 2006 were analysed that Margalef's index was 1.68,Wilhm's index 2.50,McNaughton's index 0.37 and Pielou's index 0.76.Value of McNaughton's index was a little lower than oher fishery community,while values of Margalef's index,Pielou's index and Wilhm's index were higher.Unfavorable influence of irrigation works,water pollution and water resources adjusting on the fishery resources in Changshu section was discussed。 Advices how to develop and protect fishery resources in the area were given.
张敏莹, 徐东坡, 段金荣, 刘凯, 施炜纲*. 长江常熟江段渔业群落结构及物种多样性初步研究[J]. , 2007, 26(6): 525-530.
ZHANG Min-ying, XU Dong-po, DUAN Jin-rong, LIU Kai, SHI Wei-gang. Primary studies on structure of fishery community and species diversity in Changshu section of the Yangtze River. , 2007, 26(6): 525-530.
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