摘要
本文利用现有资料以及实地调查,对川西地区(甘孜、凉山)的鱼类多样性进行了分析研究。结果表明:①川西地区共有鱼类9目19科82属148种和亚种,分别占整个四川(含重庆)鱼类的61.16%和整个中国鱼类的6.15%;②各科鱼类的种数分布为鲤科最多,为82种,占整个川西鱼类总数的55.41%,其次为鳅科,占14.19%。③川西地区是鲤科鱼类的东亚类群向西扩布的西缘地带,是青藏高原鱼类区系向东延伸的东缘地区,同时是南亚鱼类向北分布的北缘区域;④川西鱼类的垂直分布状况因地貌、海拔高度变化以及生态环境的差异等呈现出一定的规律性。此外,本文还对川西鱼类资源的保护提出了建议和对策。
In this paper, based on the present data and field survey, analysis is made of the diversity of fishes in Western Sichuan （Ganzi and Liangshan prefectures）. The results have shown that： ①in these areas,there are 148 species and subspecies of fishes which have been identified, which belong to 9 orders, 19 families and 82 genera,respectively occupying 61.16% and 6. 15% of the total fishes in Sichuan（ including Chong Qing City） and China. ②In these families, Cyprinidae （having 82 species） is dominant in quantinty,occupying 55.41% of the total fish species in western Sichuan, Cobitidae is next, occupying 14. 19%. ③The regions in Western Sichuan are the western marginal zones, to which the Eastasia class group of Cyprinidae extends westerly. These regions are the eastern marginal zones to which the fish fauna in the Qinghai-Tibet Plateau extends easterly, and also are the north marginal zones to which the Northasia class group extends northerly. ④ Owing to the changes of geomorphology, elevation, the difference of ecoenvironment and so on, the vertical distribution condition of the fish in Western Sichuan exhibits a certain regularity. Moreover, some suggestions and strategies of protecting the resoures of fishes in West Sichuan are put forward in this paper.
出处
《四川林业科技》
2010年第1期34-40,共7页
Journal of Sichuan Forestry Science and Technology
基金
中国林业持续发展国际项目"四川西部生物多样性调查与评价"(赠款号:TF050644-CHA)部分内容
关键词
四川西部
鱼类
多样性
区系
分布
保护
Western Sichuan, Fishes, Diversity, Fauna, Distributtion, Protection
