Planktonsurvey and fish productivity estimation in Hongshan Reservoir
With reference to the manual of fishery resources survey in inland waters,three sampling surveys of phy-toplankton in Hongshan Reservoir,Chifeng City,Inner Mongolia Autonomous Region,were conducted in May,Ju-ly and September 2021,and a total of 87 species and genera of phytoplankton of six phyla were identified,with an average phytoplankton biomass of 11.899 mg/L,an average density of 3,111.99 × 104 individuals/L,a Margalef.The average Margalef index was 2.087,the average Shannon-Wiener index was 2.044,and the average Pielou in-dex was 0.548.The results of the integrated zooplankton population structure,the existing amount and the biodi-versity index showed that the Hongshan Reservoir was in the state of eutrophication.The fish productivity was esti-mated to be 115.611 kg/hm2 based on the results of plankton survey in Hongshan Reservoir.
万方数据
维普
