Functional evaluation of fishway and genetic diversity for native fishes in river network

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560630
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Hydraulic engineering
• Research Institution: Gifu National College of Technology
• Principal Investigator: WADA Kiyoshi 岐阜工業高等専門学校, その他部局等, 教授 (50191820)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 魚道 / サイフォン式パイプ魚道 / 魚道カルテ / 遺伝的多様性 / マイクロサテライトDNA / 水中音響

Outline of Final Research Achievements

At first, we conducted to analyze functional evaluation of the fishway using check-list that Gifu Prefecture carried out investigations and improved the fishway that did not function concretely. Furthermore, in the low weir of water surface difference, we developed the siphon-pipe-fishway that fish could migrate to upstream. Under condition of around 2m for water surface difference, it was demonstrated that fish migrate. We analyzed microsatellite DNA of fish (Gnathopogon elongatus) to grasp the continuity of the stream-agriculture waterway network. As a result,
because there was the area where a genetic divergence suddenly changed in the same waterway, we examined the conservation plan of the fish habitat background using analyzed the factor.

Free Research Field

水工学、河川環境生態工学