广西森林溪流淡水鱼类区系研究

Study on the freshwater fish fauna of forest streams in the Guangxi

摘要: 通过调查发现 ,分布于广西森林溪流中的淡水鱼类有 92种 ,分别隶属于 5目、16科、6 3属 .鲤形目占 6 4.1% ,鲇形目占 11.96 % ,鲈形目占 2 0 .6 5 % ,合鳃目占 1.0 1% ,形目占 2 .2 7% .其中鲤科鱼类占总种数的 46 .7% .可划分为热带平原、江河平原、中印山区、上第三纪、北方平原 5个区系复合体 .在不同的海拔高度鱼类分布不同 ,具有明显的山区特征 .广西森林溪流淡水鱼类区系形成与广西自然环境的历史演变有密切关系 .

Abstract: This paper explored the freshwater fish fauna of forest streams in the Guangxi and found the species of the fresh water fish living in the streams of forests count up 92,being subjected to 5 orders .16 families,63 genera. The paper also make a system analysis about this fauna,such as the composition,the characteristics,the division and the cause of becoming thus fish fauna.