摘要
2009年9月和2010年5月在湑水河流域对鱼类资源进行了调查,共捕获鱼类4目、10科、29种;湑水河上游太白段以山区溪流冷水型鱼类为主,种类较少;下游城固段海拔低,鱼类种类相对上游河段丰富。不同河段在不同季节的鱼类组成和质量密度有显著差异。与相邻山区的河流相比,湑水河鱼类资源较为丰富,但目前外部因素已经开始影响鱼类的生存与繁衍,河流污染和其他人为干扰可能对该流域鱼类造成不可逆转的生态影响。
In this work,we conducted surveys on the fish resources in the Xushui River in September 2009 and May 2010.A totally of 29 fish species were found existed in the river basin,which belonged to 4 orders and 10 families.There were mainly the mountain,streams and cold water fish type at Taibai section in the river upstream,and the fish species were relatively fewer.At Chenggu section in the river downstream,where the elevation was low,the fish species were abundant.The two river sections showed significant differences in composition and mass density of fish species in different seasons.In compared with the adjacent mountain rivers,the fish resources in Xushui River were relatively abundant.However,external factors have begun to affect the survival and reproduction of the fish species.River pollution and other anthropogenic interference may cause irreversible ecological impact on the fish resources in the Xushui River.
出处
《水生态学杂志》
北大核心
2012年第4期100-103,共4页
Journal of Hydroecology
基金
陕西省科学院重大项目(2009K-05)
陕西省科学院青年基金项目(2011K-21)
关键词
湑水河
鱼类资源
多样性
Xushui River
fish resources
diversity
作者简介
王启军，1983年生，男，助理研究员，主要从事水生动物驯养繁殖技术与保护研究。E—mail：wqjab@126．com
通讯作者：张红星。E-mail：kunyang@pub．xaonline．com
