蔺河电站水库渔业资源调查和鱼产力估算  

Investigation of Fishery Resources and Estimation of Fish Productivity in Linhe Hydropower Plant Reservoir

作　　者：李涛 周小愿 张星朗 贾秋红 白海锋 周伟 高宏伟 LI Tao;ZHOU Xiao-yuan;ZHANG Xing-lang(General Station of Fishery Research and Technology Extension of Shaanxi Province,Xi’an,Shaanxi 710086)

机构地区：[1]陕西省水产研究与技术推广工作总站,陕西西安710086 [2]岚皋县岚翠湖生态渔业开发有限公司,陕西岚皋725400

出　　处：《安徽农业科学》2022年第19期106-109,共4页Journal of Anhui Agricultural Sciences

基　　金：现代农业产业技术体系国家大宗淡水鱼产业技术体系建设专项经费(CARS-45-57)。

摘　　要：[目的]科学评估蔺河电站水库鱼产力,合理利用渔业资源,保护水质。[方法]2020年9月对该水库的水生生物、鱼类种群及水质进行调查,根据有关标准估算鱼产力。[结果]水库浮游植物分属7门25种,密度为0.87×10^(6)个/L,生物量平均为1.266 mg/L;后生浮游动物共计9属11种,密度为165个/L,平均生物量为1.798 mg/L;底栖动物的密度为106.70个/m^(2),生物量为25.64 g/m^(2);渔获物中有鱼类8种。该水库总鱼产力为304.83 t,其中滤食性鱼类的鱼产力为216.68 t,底栖动物食性鱼类的鱼产力为1.45 t,碎屑食性鱼类的鱼产力为86.70 t。[结论]该水库目前的鱼载力已处于极限,须采取措施挖掘鱼产力。[Objective]To scientifically evaluate the fish productivity of the Linhe hydropower plant reservoir,make rational use of fishery resources and protect water quality.[Method]In September 2020 fishery resources including phytoplankton community,metazoan zooplankton community,benthic community and fish species,water quality were investigated,and then according to the related standard,the evaluation of the fish productivity was conducted.[Result]The identified species in this reservoir belonged to 25 species of 7 phyta,the density of the phytoplankton was 0.87×10^(6) ind./L and the biomass was 1.266 mg/L.Metazoan zooplankton was belonged to 11 species of 9 genera,its abundance was 165 ind./L and the biomass was 1.798 mg/L;the density and biomass of the benthic community were 106.70 ind./L and 25.64 g/m^(2) respectively;eight fish species were found in the catches.The total fish productivity of the reservoir was 304.83 t,of which the fish productivity of filter-feeding fish was 216.68 t,that of benthic fish was 1.45 t,and that of detrital fish was 86.70 t.[Conclusion]The carrying capacity of fish in this reservoir was near to its limit at present,and the treatment measures should be taken to explore the potentiality.

关 键 词：蔺河电站水库 渔业资源 调查 鱼产力 

分 类 号：S93[农业科学—渔业资源]