Abstract：In order to explore the succession of plankton community and the productivity of silver carp Hypophthalmichthys molitrix and bighead carp Aristichthys nobilis in Angezhuang Reservoir, surveys of plankton and silver carp and bighead carp productivity were carried out in Angezhuang Reservoir in spring, summer and autumn, respectively. The results showed that 96 species of 49 genera and 8 phyla of phytoplankton were identified, summer>autumn>spring. In spring, phytoplankton exhibitsed the “diatom-cyanobacteria” type characteristics, and in summer and autumn, the phytoplankton exhibitsed the “diatom-green algae” type. The average biomass of phytoplankton was 6.54 mg/L, autumn>spring>summer. The average of Shannon-Wiener diversity index of phytoplankton was 0.74, spring>autumn>summer, with average Pielou eveness index of 0.24. The seasonal variation was consistent with the Shannon-Wiener diversity index. Eighty-three species of zooplankton were identified in 4 categories, spring>autumn>summer. The dominant species were mainly protozoa in spring, rotifers and some protozoa in summer, and protozoa, rotifers and a few copepods in autumn. The average biomass of zooplankton was 5.68 mg/L, summer>spring>autumn. The average Shannon-Wiener diversity index was 0.44, spring>summer>autumn. Pielou eveness index was 0.16, autumn>spring>summer. According to the biomass of plankton, the productivity of silver carp was 111.83 t, and the productivity of bighead carp was 215.84 t. The reasonable maximum stocking amount of silver carp and bighead carp was 111.18 thousand individuals and 431.7 thousand individuals respectively, and the reasonable stocking ratio of silver carp and bighead carp was about 1∶3.86.
赵祺, 张秀文, 于佳, 叶敏, 崔晨, 石保佳, 侯润, 齐遵利. 安格庄水库浮游生物群落季节演替及鲢、鳙鱼产力评估[J]. 水产科学, 2022, 41(5): 876-882.
ZHAO Qi, ZHANG Xiuwen, YU Jia, YE Min, CUI Chen, SHI Baojia, HOU Run, QI Zunli. Seasonal Succession of Plankton Community and Evaluation of Silver Carp and Bighead Carp Production in Angezhuang Reservoir. 水产科学, 2022, 41(5): 876-882.
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