贵州荔波8种金线鲃对环境的适应性特征  

The adaptive characters on the environment of eight Sinocyclocheilus species in Libo

作　　者：周江[1] 侯秀发[1] 李显周[1] 高兰[1] 孙泽娟[1] 

机构地区：[1]贵州师范大学生命科学学院,贵州贵阳550001

出　　处：《贵州师范大学学报（自然科学版）》2009年第3期1-8,共8页Journal of Guizhou Normal University：Natural Sciences

基　　金：贵州自然科学基金项目黔科合丁字(2005)2021"西南喀斯地特质鱼类生物学特征及适应性研究"

摘　　要：论述了贵州省荔波茂兰自然保护区内采集到的8种金线鲃的形态特征及对环境的适应性特征,发现这8种金线鲃对于不同水环境的适应演化过程中,眼睛的退化、侧线管的两侧及头部衍生出众多短的感觉管、胸鳍和口须的适应性变化、头背部的特殊突起等独特的适应性特征,认为这8种金线鲃都属于非典型的洞穴鱼类。This article described the morphological characteristics, discussed the adaptive traits on eight species of Sinocyclocheilus collected in Libo county of Guizhou province, and found some representative adaptive characteristics to the underground environment such as vestigial eyes, sense tubes derived from lateral line and head, width of pectoral fins and length of barbels, and special protuberance on head or back. It suggested that all eight species belonged to the atypical cave species, and showed the transitional distribution in the underground water.

关 键 词：荔波 金线鲃 适应性特征 环境 

分 类 号：Q959.458[生物学—动物学]