青田水利枢纽工程建设对渔业资源的影响预测

Prediction of Impact of Qintian Water Conservancy Hub Project Comstruction on Fisheries Resources

通过鉴定标本、社会调查和查阅相关资料,预测了浙江省青田水利枢纽工程建设对所涉及流域渔业资源的影响。调查发现,该区域内现有浮游生物10大类、36种(属);鱼类隶属8目、16科、43属、55种;其中,国家重点保护经济鱼类13种,洄游性鱼类3种。根据工程开发的实际情况,从生态学角度阐述了水库建设不同时期对渔业资源的负面影响,指出了水库建设造成的悬浮物、爆破施工、大坝阻隔、水文情势变化、饵料和生境改变等因素将会对该流域鱼类多样性造成影响。为减缓这些影响,宜采取相应的措施,切实有效地保护该区域内的鱼类资源。

This paper predicts the impacts of Qintian water conservancy hub project construction on the fisheries resources by identifying specimens,doing social investigation and consulting relevant materials.It is found that 36 species of plankton exists in this region,which can be devided into 10 categories.And there are 55 species of fish,belonging to 8 orders,16 families and 43 genuses.Among these,13 kinds are national protective economy fishes and 3 kinds are migration species.Based on the real situation of project exploitation,the paper states the negative influences of reservoir construction on fisheries resources in different phases from the view of ecology.And it points out that the suspended solids,blasting construction,bam separation,changes of hydrological situation,baits and habitat changes,wchih caused by reservoir constraction,would influence the diversity of fishes in this river.In order to reduce these influences and to protect fish resources effectively,appropriate measures should be put forward.