INFLUENCE OF TURBIDITY ON SWIMMING BEHAVIOR OF ISOLATED AYU IN STATISTIC WATER

• ONITSUKA Kouki

  九州工業大学大学院 建設社会工学研究系

• AKIYAMA Juichiro

  九州工業大学大学院 建設社会工学研究系

• KURAMOTO Saori

  九州工業大学大学院 工学府建設社会工学専攻

• NOGUCHI Shohei

  九州工業大学大学院 工学府建設社会工学専攻

• UEDA Sanae

  みくに産業株式会社

Bibliographic Information

Other Title

• 静止流体中を単独で遊泳するアユの遊泳特性に及ぼす濁度の影響

Abstract

 The water includes turbidity during and after the flood. Almost fish uses eyes and lateral line during swimming, so that the turbidity may affect on the swimming behavior of fish. Fish trajectories in openchannel flows with turbidity are not known. In this study, the trajectories of ayu, Plecoglossus altivelis altivelis, in static water with turbidity were recorded with a digital video camera and trajectories of an each time were analyzed. It was found that the swimming velocity decreased with an increase of the turbidity, because visibility decreased with an increase of turbidity. The turning angle during swimming is almost constant irrespective of the turbidity.

Journal

• Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)

  Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 69 (6), II_337-II_342, 2013

  Japan Society of Civil Engineers

Keywords

• turbidity
• swimming behavior of fish
• static water
• ayu
• swimming speed

Details

• CRID: 1390282680334647680
• NII Article ID: 130004962509
• DOI: 10.2208/jscejer.69.ii_337
• ISSN: 21856648
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed