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引用本文:袁刚,茹辉军,刘学勤.2007-2008年云南高原湖泊鱼类多样性与资源现状.湖泊科学,2010,22(6):837-841. DOI:10.18307/2010.0605
YUAN Gang,RU Huijun,LIU Xueqin.Fish diversity and fishery resources in lakes of Yunnan Plateau during 2007-2008. J. Lake Sci.2010,22(6):837-841. DOI:10.18307/2010.0605
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2007-2008年云南高原湖泊鱼类多样性与资源现状
袁刚1,2, 茹辉军1,2, 刘学勤1
1.中国科学院水生生物研究所, 武汉 430072;2.中国科学院研究生院, 北京 100049
摘要:
为了解云南高原湖泊鱼类资源及多样性现状,于2007-2008年对云南高原11个大型湖泊进行了2次调查.共鉴定鱼类39种,隶属于7目13科33属,鲤形目鱼类最多,占65.0%.其中共调查到土著鱼类14种,外来鱼类25种.在种数上,外来鱼类已经成为各湖泊的主体.在鱼类区系上,由高原鱼类区系向长江中下游鱼类区系演变.主要经济鱼类年龄结构以0+和1+鱼为主.分析表明,土著鱼类多样性与海拔和湖泊面积密切相关.土著鱼类物种数在中等海拔(1700-1800m)处最高,并与湖泊面积呈显著正相关.最后根据调查结果,提出了一些保护建议.
关键词:  鱼类资源  多样性  土著鱼类  云南高原湖泊
DOI:10.18307/2010.0605
分类号:
基金项目:科技部基础性工作专项"中国湖泊水质、水量和生物资源调查"项目(2006FY110600)资助
Fish diversity and fishery resources in lakes of Yunnan Plateau during 2007-2008
YUAN Gang1,2, RU Huijun1,2, LIU Xueqin1
1.Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P. R. China;2.Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China
Abstract:
To study current status of fishery resources and fish diversity in Yunnan Plateau lakes, a survey was earned out in 11 lakes during 2007-2008, Total 39 fish species belonging to 7 orders, 13 families and 33 genera were recorded. Cyprinifomes were the richest, accounting for 65.0% of total fish species. There were 14 native fishes and 25 exotic fishes being recorded during the survey. In terms of species richness, exotic fishes have dominated in each lake. Fish fauna is characteristic o£ a shifting from the Plateau to the Plain characters. The age structure analysis showed that year 0+ and 1+ individuals dominated in moet economic fishes. Analysis showed that native species diversity was closely correlated with lake elevatitm and area. The diversity of native species was highest in elevation of 1700-1800m above sea level. There was significant positive relationship between diversity native species and lake area. Some conservation suggestions were gave at the end of the paper.
Key words:  Fishery resources  diversity  native fishes  Yunnan Plateau lakes
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