Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
2000-02-01 |
タイトル |
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タイトル |
Biological characteristics of euphausiids preyed upon by Adelie penguin, Pygoscelis adeliae, breeding at Hukuro Cove, Lutzow-Holm bay in 1995/1996 |
言語 |
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言語 |
eng |
キーワード |
|
|
言語 |
en |
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主題Scheme |
Other |
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主題 |
Euphausia superba |
キーワード |
|
|
言語 |
en |
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主題Scheme |
Other |
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主題 |
Euphausia crystallorophias |
キーワード |
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|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Adelie penguin |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
biological sampler |
キーワード |
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言語 |
en |
|
主題Scheme |
Other |
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主題 |
Lutzow-Holm Bay |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
ID登録 |
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ID登録 |
10.15094/00006147 |
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ID登録タイプ |
JaLC |
ページ属性 |
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内容記述タイプ |
Other |
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内容記述 |
P(論文) |
著者名(英) |
Endo,Yoshinari
Asari,Hiroshi
Watanuki,Yutaka
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著者所属(英) |
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|
en |
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Graduate School of Agricultural Science, Tohoku University/Graduate School of Agricultural Science, Tohoku University/Faculty of Agriculture, Hokkaido University |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
Adelie penguins were used as a biological sampler from late December 1995 to late January 1996 to study biological characteristics of euphausiids in Lutzow-Holm Bay, which is generally covered with fast sea-ice even in summer. Stomach contents and diving behavior of the penguins were examined. Euphausiids accounted for 73% of total wet weight of stomach contents, and fish 27%. Among euphausiids, Euphausia superba occupied 83%, and E. crystallorophias 17%. Females occupied 96% of the total number of E. superba, males only 4%. E. crystallorophias consisted of 73% females, 10% males and 17% juveniles. Adelie penguins might eat nutritionally superior female euphausiids selectively, and/or they could not catch male euphausiids which can swim faster. It was suggested that those individuals which dived deeper ate more euphausiids than fish, and larger E. superba. |
雑誌書誌ID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA11327019 |
書誌情報 |
Polar bioscience
巻 13,
p. 66-73,
発行日 2000-02
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出版者 |
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出版者 |
National Institute of Polar Research |