水生生物学报2017，Vol.41Issue(3)：560-564,5.DOI:10.7541/2017.72
鳙幼鱼在下行过程中应对加速流的行为响应研究
THE BEHAVIOR RESPONSE OF JUVENILEARISTICHTHYS NOBILIS TO THE ACCELERATING FLOW DURING THEIR DOWNSTREAM MIGRATION
摘要
Abstract
To investigate the ability of downstream migration of Juvenile bighead carp (Aristichthys noblis), a self-de-signed equipment with three inlet velocity (0.018m/s, 0.034m/s, 0.053m/s) was utilized. Results indicated that the passing rate under three inlet velocity were all 100%. Most fish used tail through first (tail-first) to pass the hole, espe-cially under the high velocity, and the percentage of head-first was merely 6.25%. The total passing time in the low ve-locity was significantly less than the middle velocity (P<0.05), and no difference existed between the high velocity and the other two conditions (P>0.10). In regard to the passing time, from the time subject enter the accelerating flow field to the moment it left the experimental area, the carp appeared no significant difference (P>0.10) in all three conditions. These results indicated the impact the accelerating flow on the duration and methods of Juvenile bighead carp's down-stream action, which provide knowledge for fish passage techniques and preserve fish resources. In addition, this work established an available method to study the behavioral reaction fish fight accelerating flow during its downstream mi-gration.关键词
鳙幼鱼/下行/加速流/洄游Key words
JuvenileAristichthys nobilis/Downstream/Accelerating flow/Migration分类
生物科学引用本文复制引用
林晨宇,罗佳,刘德富,吴欢,许家炜,石小涛..鳙幼鱼在下行过程中应对加速流的行为响应研究[J].水生生物学报,2017,41(3):560-564,5.基金项目
国家自然科学基金(51579136) （51579136）
技术服务项目(SDHZ2015158)资助 Supported by the National Natural Science Foundation of China (51579136) （SDHZ2015158）
Technical Service Project (SDHZ2015158) （SDHZ2015158）
