SWIMMING BEHAVIOR OF <i>Tribolodon hakonensis</i> AROUND SPUR DIKE IN NORMAL FLOW

DOI Web Site Web Site 1 References
  • AKEMA Daiki
    東洋大学大学院 理工学研究科都市環境デザイン専攻
  • AOKI Muneyuki
    東洋大学 理工学部都市環境デザイン学科

Bibliographic Information

Other Title
  • 平常時における杭水制周辺でのウグイの遊泳行動について
  • ヘイジョウジ ニ オケル クイスイセイ シュウヘン デ ノ ウグイ ノ ユウエイ コウドウ ニ ツイテ

Search this article

Description

<p> In this study, the authors aimed at clarifying river environment functions of spur dike focusing on swimming behaviors of Tribolodon hakonensis in normal flow. Therefore, we carried out behavior experiments and hydraulics experiments using fish and columns with relatively large diameters. Results revealed that the presence points of fish mainly were two patterns, 1) a column group and 2) downstream site of the column group. Further, fish was mainly presented the downstream site of the columns in the case of the column group. The flow rate of the place was less than 4BL/s and the fish chose the flow that was lower than the cruising velocity, we presume. Further, difference occurred between the cases in the flow of the transverse direction in the downstream site of the columns although difference did not occur in time of fish's presence in the column group of the fish in each case. This is because the flow rate v of the downstream site of the column was less than 2BL/s and the fish were not affected by the flow rate, we infer. Further, the column installation interval in the identical y-axis was wider than the fish's length, which made it easier for the fish to present in the column group, we presume.</p>

Journal

References(1)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top