Diet of Minke Whales Balaenoptera acutorostrata in the Northwestern Part of the North Pacific in the Summer,1994 and 1995

• Tamura Tsutomu

  Faculty of Fisheries, Hokkaido University

• Fujise Yoshihiro

  The Institute of Cetacean Research

• Shimazaki Kenji

  Faculty of Fisheries, Hokkaido University

書誌事項

タイトル別名

• Diet of Minke Whales <i>Balaenoptera acutorostrata</i> in the Northwestern Part of the North Pacific in Summer, 1994 and 1995
• Diet of Minke Whales Balaenoptera acuto

抄録

The forestomach contents of 114 minke whales Balaenoptera acutorostrata randomly sampled in the northwestern part of the North Pacific in the summer of 1994 and 1995 were analyzed. Twelve prey species consisting of 7 fishes, 4 euphausiids and 1 copepod were identified. Pacific saury Cololabis saira was the most important prey species, occurring in 77.2% of the stomachs and composing 80.6% of the weight ingested, with some spatial and temporal variation. Japanese anchovy Engraulis japonicus was the next most important prey species, occurring in 14.0% of the stomachs and composing 6.7% of the weight ingested. Diurnal changes in the mean forestomach content weight and in the relative freshness of the forestomach contents showed little change between 06:00-18:00 h. The minke whales fed mainly on pelagic schooling fishes at the surface in the daytime.

収録刊行物

• Ｆｉｓｈｅｒｉｅｓ　ｓｃｉｅｎｃｅ

  Ｆｉｓｈｅｒｉｅｓ　ｓｃｉｅｎｃｅ 64 (1), 71-76, 1998

  公益社団法人 日本水産学会

キーワード

• minke whale
• stomach contents
• Pacific saury
• Japanese anchovy
• diurnal changes

詳細情報

• CRID: 1390282679405385472
• NII論文ID: 130003742095
• NII論文ID: 10004873149
• NII書誌ID: AA10993718
• DOI: 10.2331/fishsci.64.71
• NDL書誌ID: 4406507
• ISSN: 09199268
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4406507
• Web Site: https://www.jstage.jst.go.jp/article/fishsci1994/64/1/64_1_71/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可