生态学杂志2018，Vol.37Issue(4)：1211-1219,9.DOI:10.13292/j.1000-4890.201804.027
鳙幼鱼游泳行为与紊动强度响应关系
The response of swimming behavior of juvenile Aristichthys nobilis to turbulence intensity
摘要
Abstract
Turbulence,a complex flow regime,exists universally in nature.It has important influences on the survival of fish.Turbulence is closely related to the swimming behavior of fish,which has received extensive attention.In this study,with juvenile Aristichthys nobilis (10.10±0.54 cm of body length) as experimental objects,a ball (10 cm in diameter) was put in a tank to generate a non-uniform turbulence field,and turbulence intensity was chosen as the characteristic magnitude of turbulence.We analyzed the relationship between the responses of swimming behavior of A.nobilis and turbulence intensity when the fish migrated upstream,with the spatial distribution of turbulence being overlapped with typical trajectories of juvenile A.nobilis.The results showed that the upstream swimming behavior of A.nobilis was affected by the turbulence intensity.The sensitive turbulence intensity of juvenile A.nobilis ranged 8.7-9.2 cm · s-1 when the flow velocity was 14,26 and 34 cm·s-1,and the preferred turbulence intensity was 5.25-8.4 cm · s-1.The results would improve our understanding of the relationship between fish behavior and turbulence and provide guidance for the conservation of A.nobilis.关键词
鳙幼鱼/游泳行为/紊流/紊动强度Key words
juvenile Aristichthys nobilis/swimming behavior/turbulent flow/turbulence intensity引用本文复制引用
宋基权,王继保,黄伟,吴欢,金志军,石小涛,陈和春,杨盼,向晨光..鳙幼鱼游泳行为与紊动强度响应关系[J].生态学杂志,2018,37(4):1211-1219,9.基金项目
湖北省自然科学基金项目(2014CFB691)、三峡库区生态环境教育部工程研究中心开放基金项目(KF201504)和湖北省高等学校优秀中青年科技创新团队计划鱼类过坝技术项目(T201703)资助. （2014CFB691）
