三河口水利枢纽建成初期鱼类增殖放流监测效果评估研究OACSTPCD

In order to comprehensively understand the impact of Sanhekou Hydro-junction Project on aquatic organisms,the fish proliferation and release effects of the Project is investigated and evaluated for two consecutive years.The survey results show that,(a)the aquatic environment is changed with the increase of fish population,but there is no significant difference;(b)the species and quantity of bait organisms are on the rise,which can meet the normal feeding needs of fish;(c)after proliferation and release,the amount of released fish resources in the water area is significantly recovered,and the proportion of catch is increased;and(d)at present,there are still some released species that have not been caught.It is recommended to appropriately expand the variety and quantity of fish populations in the later stage of proliferation and release activities.