塔里木裂腹鱼资源与分布的调查研究

于2003~2006年在新疆塔里木河水系调查了塔里木裂腹鱼(Schizothorax biddulphi Günther)的分布和资源现状。结果表明:塔里木裂腹鱼在流域内各主要河流均有分布;分布范围较广,但分布区域缩小;栖息环境条件恶劣,水温低,饵料少;主要种群分布在海拔1000~3300 m区域;个体低龄化,种群数量占土著鱼类的比例小。水利工程、过度捕捞、引入外来物种和生态环境恶化等因素已对该鱼资源造成严重破坏。

A Survey on the Resource and Distribution of Schizothorax biddulphi Günther

Resource and distribution of Schizothorax biddulphi Günther in the Talimo River was surveyed from 2003 to 2006.The result showed that:the fish distributed in all major rivers,but the distribution region became narrow.The habitats were bad,such as low water temperature and less food.The altitude of distribution regions was mainly from 1000 m to 3300 m.All populations of S.biddulphi were low-aged,and the proportions of the indigenous fish were small.The factors such as water conservancy facilities,over fishing,introduction of living things had caused huge destruction to the fish′s survival.