淀川の流量が天然海産アユの遡上数に及ぼす影響 --天然海産アユを殖やす方策に関する考察--

• 瀬口, 雄一

  株式会社 建設技術研究所

• 竹門, 康弘

  京都大学防災研究所

• 角, 哲也

  京都大学防災研究所

書誌事項

タイトル別名

• Influence of Flow Discharge on the Migration Number of Wild Amphidromous Ayu-FISH in the Yodo River - Consideration on Increasing Method of Wild Amphidromous Ayu-FISH -

抄録

Proliferation of sea-run population is necessary for increasement of Ayu-fish resources in the Yodo River. In order to increase the sea-run population, we investigated a suitable drifting route of the larval fish from the Yodo River to the Osaka Bay, and found that the larvae drifting through the Okawa River via Kema Water Gate are far more in population than those through the Shin Yodo River via Yodo River Barrage, although the number of fry fish migrating upstream is much more through Yodo River Barrage than Kema Water Gate. This result indicates that proliferation of sea-run population is possible if the flow diversification increasing discharge to the Shin Yodo River were adopted by the River Bureau.

収録刊行物

• 京都大学防災研究所年報. B

  京都大学防災研究所年報. B 63 (B), 344-355, 2020-12

  京都大学防災研究所

キーワード

• 天然海産アユ
• 個体群増殖法
• 淀川大堰
• 流下仔魚
• 河川流量

詳細情報

• CRID: 1050006210047750400
• NII論文ID: 120006950357
• NII書誌ID: AN00027784
• ISSN: 0386412X
• HANDLE: 2433/260837
• 本文言語コード: ja
• 資料種別: departmental bulletin paper
• データソース種別:
  • IRDB
  • CiNii Articles