摘要
位于广西西南部的十万大山地区鱼类物种多样性丰富 ,分布于十万大山的野生鱼类以小型或中小型为主 ,缺乏经济价值高、产量大的种类 ,这是该地区野生鱼类资源的主要特点 ,目前资源量和鱼类物种丰富度都呈现出明显下降的趋势。这主要同有害的渔业生产方式和过密的捕捞强度、小水利设施及外来种的入侵有关。加强宣传力度和强化渔政管理、开发其它副业、拆除废弃的小水利工程、对人工养殖鱼种加强管理 ,以及开展入侵种对土著种影响的科学研究等是保护这一地区鱼类多样性的重要手段。
The Shiwan Dashan Mountains (literally “a hundred thousand gigantic mountains') are located in the southwestern part of the Guangxi Zhuang Autonomous Region. These mountains are an important climatic zone in South Guangxi and, due to the complicated geography of the region, have a high diversity of fish species. Wild fish stocks are predominantly comprised of small to middle sized fish. Fish resources and species diversity are clearly decreasing in recent years. Reasons for this decrease may include environmentally harmful capture methods, the intensity of high density capture, small sized water conservancies and invasion of non native species. Enhancing environmental education, strengthening fishery management, developing other sideline industries, demolishing used water conservancies, reinforcing the management of artificially bred species and increasing research on the influence of non native species are all important ways of protecting the fish diversity of the Shiwan Dashan Mountains.
出处
《动物学杂志》
CAS
CSCD
北大核心
2002年第6期43-47,共5页
Chinese Journal of Zoology
基金
中国科学院重大项目 (B)"广西十万大山动物区系
分布格局与演化形成机制研究"
国家基础科学人才培养基金
中国香港特别行政区嘉道理农场暨植物园资助
