三重県青蓮寺湖と滋賀県西の湖におけるオオクチバスの食性

• 淀 太我

  三重大学生物資源学部附属水産実験所

• 木村 清志

  三重大学生物資源学部附属水産実験所

書誌事項

タイトル別名

• Feeding Habits of Largemouth Bass Micropterus salmoides in Lakes Shorenji and Nishinoko, Central Japan.
• ミエケン ショウレンジコ ト シガケン ニシ ノ コ ニ オケル オオクチ

抄録

Stomach contents of the largemouth bass collected from Lakes Shorenji (typical reservoir) and Nishinoko (typical swamp) were analyzed to determine its feeding habits and environmental adaptability. Main preys were a goby Rhinogobius sp(p). and shrimps Macrobranchium nipponense and Palaemon paucidense in Lake Shorenji, and a crayfish Procambarus clarkii and a shrimp M. nipponense in Lake Nishinoko. Fishes and crustaceans were the most important prey in Lakes Shorenji and Nishinoko, respectively. Principal preys changed ontogeneitically from the goby into bluegill Lepomis macrochirus and a cyprinid fish Tribolodon hakonensis in Lake Shorenji, and from a shrimp M. nipponense to the crayfish in Lake Nishinoko. The feeding activity was intense in summer and declined in winter. The bass may affect the ayu Plecoglossus altivelis altivelis population in both lakes. The bass has very flexible feeding habits, and this allows it to adapt easily to various feeding environments. The bass in Lake Nishinoko fed on larger amounts of prey organisms than that in Lake Shorenji. This fact may cause the higher growth rate of the bass in the former lake.

収録刊行物

• 日本水産学会誌

  日本水産学会誌 64 (1), 26-38, 1998

  公益社団法人 日本水産学会

キーワード

• オオクチバス
• 食性
• 青蓮寺湖
• 西の湖
• 餌料重要度指数
• 食性の季節変化
• 食性-体長関係

詳細情報

• CRID: 1390001206412787712
• NII論文ID: 10004852420
• NII論文ID: 10008266203
• NII書誌ID: AN00193422
• DOI: 10.2331/suisan.64.26
• ISSN: 1349998X
• ISSN: 00215392
• NDL書誌ID: 4381357
• Web Site: https://agriknowledge.affrc.go.jp/RN/2010571917
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4381357
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可