HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
水産科学院・水産科学研究院  >
北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University >
第62巻 第3号 >

Geographical variations in abundance and body size of the hydromedusa Aglantha digitale in the northern North Pacific and its adjacent seas

フルテキスト
62(3)p63-69.pdf1.54 MBPDF見る/開く
この文献へのリンクには次のURLを使用してください:http://hdl.handle.net/2115/51114

タイトル: Geographical variations in abundance and body size of the hydromedusa Aglantha digitale in the northern North Pacific and its adjacent seas
著者: Shiota, Tomoya 著作を一覧する
Yamaguchi, Atsushi 著作を一覧する
Saito, Rui 著作を一覧する
Imai, Ichiro 著作を一覧する
キーワード: Aglantha digitale
jellyfish
abundance
body size
geographical variation
発行日: 2012年12月14日
出版者: 北海道大学大学院水産科学研究院
誌名: 北海道大学水産科学研究彙報
掲載誌等別名: Bulletin of Fisheries Sciences, Hokkaido University
巻: 62
号: 3
開始ページ: 63
終了ページ: 69
抄録: Geographical variations in abundance and body size of the hydromedusa Aglantha digitale (O.F. Müller, 1766) were evaluated in the northern North Pacific (NP), the water around Aleutian Islands (AL), eastern Bering Sea shelf (BS) and Chukchi Sea (CH) during the summers of 2007 and 2008. Abundances of A. digitale ranged between 38 and 221 ind. m-2, and had significant inverse relationships with the proportion of mature individuals. While abundances showed large annual variability, body sizes had a common regional pattern both 2007 and 2008. Body size and minimum size of maturity A. digitale were smaller in the BS and CH than those in the NP and AL. The smaller size at maturity in the BS and CH suggests regional variations in the acquired energy budget. The rapid maturity and reproduction in the BS and CH may indicate that they utilize acquired energy to mature and reproduce from smaller body sizes, while slow maturity in the NP and AL may imply that they convert acquired energy to somatic growth first.
資料タイプ: bulletin (article)
URI: http://hdl.handle.net/2115/51114
出現コレクション:第62巻 第3号

 

本サイトに関するご意見・お問い合わせは repo at lib.hokudai.ac.jp へお願いします。 - 北海道大学