云南独龙江流域渔业资源现状及保护建议

2018年5月和11月,开展了独龙江域渔业资源调查。调查共采集到鱼类标本4种,73尾。独龙江鱼类结构较为单一,裂腹鱼类是独龙江流域的绝对优势种,占渔获物总重的98.9%,占渔获物总数的97.2%。独龙江流域渔业资源自北向南明显的增长趋势,下游的渔业资源远高于上游。为有效保护独龙江渔业资源,本文提出了加强基础性研究、异地保护、人工增殖放流、加大保护宣传与渔政执法力度等保护建议。

The investigation on fishery resources of Du-long river in Yunnan

In May and November 2018, a survey of fish in Du-long River, Gongshan City, Yunnan Province was conducled, and a total of 73 fish individuals belonging to 4 species were collected. Results shows the structure of fish in Du-long River is very simple: The absolute dominant species is schizothorax fish in Du-long River, about 98.9% of total catch weight and 97.2% of the total catch. The fishery resources of Du-long River have a significant growth trend from north to south and downstream of the river are more than upstream . In order to protect the fish resources of Du-long River, same suggestions should be carry out for fish, such as enhanceSbasicSstudies, exsituSconservation, artificialSreleasing, knowledge of protectionSpromotion and fishingSenforcement.