云南思茅地区鱼类多样性分析  

Fish Diversity in Simao District,Yunnan

作　　者：李凤莲[1] 李旭[1] 付蔷[1] 周伟[1] 

机构地区：[1]西南林学院保护生物学学院,云南昆明650224

出　　处：《广西师范大学学报（自然科学版）》2006年第3期77-80,共4页Journal of Guangxi Normal University:Natural Science Edition

基　　金：国家重点基础研究发展计划(973)资助项目(2003CB415100);云南省环境科学与工程创新人才联合培养基地资助项目

摘　　要：为了解云南思茅境内澜沧江和李仙江的鱼类多样性,以红河水系的2条一级支流绿汁江和南溪河作为分析的对照样本,采用β多样性指数中的二元属性数据测定法的Cody指数、R ou tledge指数和相似性系数作分析。经整理,澜沧江思茅片土著鱼类61种,分属13科41属;李仙江土著鱼类37种,分属11科31属。2个水系合起来,共有土著鱼类82种,隶属于5目14科50属。β多样性指数的计算结果表明:在比较的4条河流中,澜沧江思茅片的鱼类多样性最为丰富。河流长度、流域面积的大小及支流的多少、生物群落的相互作用、河流的位置与生产力等均影响着鱼类多样性。In order to find out the fish diversity of Lancang Jiang and Lixian Jiang in Simao district,the Cody index, Routedge index and similarity coefficient in the binary feature data of β diversity, with Lvzhi Jiang and Nanxi He （2 arterial branches of Red River） were calulated as accessorial samples. There are 61 endemic species are recorded in Lancang Jiang in Simao district, belong to 13 families and 41 genera. 37 endemic species are recorded in Lixian Jiang, belong to 11 families and 31 genera. Totally, there are 82 endemic species, belong to 5 orders 14 families and 50 genera in the two rivers. The results of 13 diversity analysis indicate that fish diversity on Lancang Jiang in Simao district is the richest among the four rivers. Fish diversity was impacted by river length, basin area, branches quantity, interspecific interaction in aquatic community, river location, and its productivity.

关 键 词：生态学 澜沧江思茅片 李仙江 鱼类多样性 β多样性指数 

分 类 号：Q959.46[生物学—动物学]