Japan Society of Civil Engineers 2019 Annual Meeting

Presentation information

第VII部門

環境計画 (3)

Thu. Sep 5, 2019 12:40 PM - 2:10 PM VII-1 (幸町総合教育棟 多目的室6)

座長:佐藤 厚子(寒地土木研究所)

[VII-106] Water level characteristics of Japanese crayfish habitat

*池田 幸資1、土居 秀幸2、加藤 敦子1、三塚 多佳志1、川井 唯史3、根岸 淳二郎4 (1. パシフィックコンサルタンツ株式会社、2. 兵庫県立大学大学院、3. 北海道立総合研究機構、4. 北海道大学地球環境科学研究院)

Keywords:Jananese crayfish, Habitat, Water level fluctuation, Flood, Drought

As Japanese crayfish generally have less mobility than fish, the negative effects of runoff and lower water levels are usually expected. However, there is no report that clearly shows them. This study aimed to clarify the habitat factor of the Japanese crayfish, focusing on the time variation of water level environment. Based on the idea that the fluctuation of water level is a factor that defines the habitat of Japanese crayfish, we conducted capture surveys and environmental measurements.

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