湖泊科学2024，Vol.36Issue(5)：1459-1469,中插14,12.DOI:10.18307/2024.0532
乌梁素海鱼类群落结构特征及其与环境因子的关系
Fish community structure in Lake Wuliangsuhai and its relationship with major environ-mental factors
摘要
Abstract
Utilizing data obtained from three surveys conducted in 2021 and historical records pertinent to fisheries,this study scru-tinized the alterations in the fish community structure within Lake Wuliangsuhai and elucidated its correlation with key environmen-tal factors.Comparative scrutiny with historical data unveiled substantial shifts in the fish community structure in Lake Wuliangsu-hai,typified by a decline in indigenous species,alterations in dominant species composition,and a discernible trend toward indi-vidual fish miniaturization.According to the distribution characteristics of fish communities,the lake was divided into three lake ar-eas:western,eastern and southern.ANOSIM and SIMPER results showed significant differences in fish community composition be-tween the lake regions.The mean difference was more than 70％and was mainly attributed to Carassius auratus,Pseudorasbora par-va and Cyprinus carpio.The results of biodiversity analysis showed that the diversity index of fish communities in the whole lake and each lake area was low(H'＜2).Mantel test analysis and CCA underscored turbidity and chlorophyll-a as key environmental factors influencing the fish community structure in the lake.The differences in fish communities and biodiversity among lake areas reflect the adaptation of fish community structure to the environmental characteristics of the lake.This paper proposes a reference direction for future fisheries management planning in the lake from different perspectives:1)the policy of fishing ban and stocking,2)make full use of the relationship between the fish community and environmental characteristics.关键词
渔业资源小型化/优势种/生物多样性/环境因子/多元统计分析/乌梁素海Key words
Miniaturization of fish resources/dominant species/biodiversity/environmental variable/multivariate analysis/Lake Wuliangsuhai引用本文复制引用
姚禹佳,毛志刚,谷孝鸿,王奕杨,曾庆飞,陈辉辉,兰海今..乌梁素海鱼类群落结构特征及其与环境因子的关系[J].湖泊科学,2024,36(5):1459-1469,中插14,12.基金项目
内蒙古自治区科技成果转化专项资金项目(2021CG0013)、江苏省水利厅科技重大技术攻关项目(2021003)、国家自然科学基金项目(32071575)和湖泊与流域水安全重点实验室项目(Grant No.NKL2023-KP02)联合资助. （2021CG0013）
