The habitat status of native and invasive aquatic animals in an inter-levee floodplain water body in a stream, the Tone River basin

DOI
  • Tawa Kota
    River Restoration Team, Water Environment Research Group, Public Works Research Institute
  • Enju Chigaya
    River Restoration Team, Water Environment Research Group, Public Works Research Institute
  • Nakamura Keigo
    River Restoration Team, Water Environment Research Group, Public Works Research Institute

Bibliographic Information

Other Title
  • 利根川水系の小河川に形成された河道内氾濫原における在来および外来水生動物の生息状況

Abstract

<p>We investigated an aquatic animal community in a small floodplain water body of the Ohya River in the Tone River system of Japan in August 2020. We captured and observed native aquatic animals such as the diving beetle Copelatus weymarni, the water scavenger beetle Sternolophus rufipes, the Tokyo daruma pond frog Pelophylax porosus porosus, and the Japanese tree frog Dryophytes japonicus, inhabiting the lentic water areas in the study site. However, two invasive species, the pond loach Misgurnus dabryanus and the red swamp crayfish Procambarus clarkii were dominant. Most loaches were juveniles born during a reproductive season in 2020. Our results indicate that the inter-levee floodplain water bodies may serve not only as suitable habitats for native wetland aquatic animals but also as breeding sites for invasive species that have negative effects on wetland ecosystems.</p>

Journal

Keywords

Details 詳細情報について

  • CRID
    1390011461951833088
  • DOI
    10.20745/izu.16.0_1
  • ISSN
    24242101
    18819559
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Allowed

Report a problem

Back to top