上海海洋大学学报2025，Vol.34Issue(4)：760-770,11.DOI:10.12024/jsou.20240504535
2017-2022年上海金泽水库鱼类群落及其变化
Fish communities and changes in Jinze Reservoir,Shanghai from 2017 to 2022
摘要
Abstract
In order to investigate the change and evolution of fish community structure in Jinze Reservoir from 2017 to 2022,Margalef richness index,Shannon diversity index,Pielou evenness index,abundance biomass curvilinear method,completeness index,and clustering analysis were used to investigate and analyze the fish community.The results showed:A total of 5 119 fish were collected in the survey,belonging to 7 orders,12 families,34 genera,and 46 species.The dominant species in Jinze Reservoir in the 2017 survey were Coilia nasus,Pseudorasbora parva,Hypophthalmichthys molitrix,Aristichys nobilis,Carassius auratus,and the dominant species in Jinze Reservoir in 2018-2022 were Coilia nasus,Hypophthalmichthys molitrix,Aristichys nobilis and Carassius auratus.After clustering analysis:at the level of 70％similarity,2017,2018,and 2019 were separate groups,and 2020,2021,and 2022 were groups,and the fish communities were similar in the last three years.The fish Margalef richness index and Shannon diversity index in Jinze Reservoir from 2017 to 2022 were overall high and showed an upward trend in fluctuation;the Pielou evenness index declined and then stabilized,and the competitive advantages of the dominant species gradually appeared.The fish integrity index evaluated the Jinze Reservoir as"fair"in 2017 and"good"in the remaining years.The biomass of population abundance method showed that the biomass of abundance curves of Jinze Reservoir from 2017 to 2022 did not cross and the statistic W was greater than 0,which indicated that the structure of the fish community was stable.The study showed that the fish diversity in Jinze Reservoir was getting higher from 2017 to 2022,the community structure was not negatively affected,and the ecosystem remained stable.This study can provide a reference for the management of fish resources in the reservoir and the construction of an ecological reservoir.关键词
鱼类群落/多样性指数/ABC曲线/完整性指数/金泽水库Key words
fish communities/diversity index/ABC curves/IBI/Jinze Reservoir分类
农业科技引用本文复制引用
张成,王天霖,陈立婧,龚小玲..2017-2022年上海金泽水库鱼类群落及其变化[J].上海海洋大学学报,2025,34(4):760-770,11.基金项目
上海城投原水有限公司项目(D-8006-19-0088) （D-8006-19-0088）
