Establishing a technique to prevent great cormorant from foraging for the Ryukyu-ayu ―Project for rescuing Ryukyu-ayu harboring on Amami-oshima Island―

DOI

Bibliographic Information

Other Title
  • 絶滅の危機に瀕したリュウキュウアユをカワウの食害から回避させる手法の確立 ―奄美リュウキュウアユ蘇生プロジェクト―

Abstract

<p>A sudden decline in the population of Ryukyu-ayu (Plecoglossus altivelis ryukyuensis) harboring on Amami-oshima Island occurred in 2019 concurrently with a rapid increase in the number of migratory great cormorant (Phalacrocorax carbo). Since selective foraging by great cormorant has a suspected risk of causing extinction of Ryukyu-ayu, a line-technique was applied to protect the endangered species from the piscivorous predator. Consequently, the measures against great cormorant allowed Ryukyu-ayu to spawn and reproduce themselves. Our approach of investigation revealed the line-technique is effective.</p>

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Details 詳細情報について

  • CRID
    1390289553400302720
  • NII Article ID
    130008095013
  • DOI
    10.32215/pronatura.30.0_57
  • ISSN
    21897727
    24320943
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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