| 漓江鱼类物种多样性及其演变态势研究 |
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| 引用本文： | 韩耀全.漓江鱼类物种多样性及其演变态势研究[J].水利渔业,2010(1). |
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| 作者姓名： | 韩耀全 |
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| 作者单位： | 广西壮族自治区水产研究所; |
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| 基金项目： | 广西自治区直属公益性科研院所基本科研业务专项资金项目经费支持(编号:2060302GXIF-2009-08) |
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| 摘 要： | 根据漓江30多年来3次较大规模的水生生物自然资源调查的鱼类信息数据,按照内陆水域渔业自然资源调查方法,利用数学统计法和多样性指数法分析历史与现状数据,研究了漓江鱼类多样性特点及30多年来多样性的变化趋势,并在此基础上分析了漓江鱼类日益枯竭的原因,为漓江水生态系统保护与修复提供科学依据。研究显示,漓江鱼类的物种多样性指数处于较高水平,但由于各种致危因素的叠加影响,漓江水生态系统呈现出亚健康状态,水生生物结构严重失调,鱼类自然资源日趋衰竭的态势严重,鱼类物种多样性下降趋势显著。
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| 关 键 词： | 漓江 鱼类 多样性 演变态势 |
Studies on Fish Species Diversity and Evolution Trend in Lijiang River |
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| HAN Yao-quan.Studies on Fish Species Diversity and Evolution Trend in Lijiang River[J].Reservoir Fisheries,2010(1). |
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| Authors: | HAN Yao-quan |
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| Institution: | HAN Yao-quan(Guangxi Institute of Fisheries,Nanning 530021,China) |
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| Abstract: | Based on the fish data of three large scale surveys on aquatic organisms natrual resources in the Lijiang River more than 30 years,and according to the method of inland water fishery natural resource investigation,by means of mathematics statistics and species diversity index to analyze the history and present data,studied the fish biodiversity characteristics and trend of biodiversity variation in the last 30 years. On the basis,found the reasons of exhaustion of fish resources and provided the scientific ... |
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| Keywords: | Lijiang River Fish Diversity Evolution Trend |
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