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日本沿岸におけるキタオットセイを中心とした鰭脚類の漂着・混獲記録,1977-1998年

https://fra.repo.nii.ac.jp/records/2002179
https://fra.repo.nii.ac.jp/records/2002179
b156d3d1-2c34-40a7-852a-8bf37535cbee
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2024-04-22
タイトル
タイトル 日本沿岸におけるキタオットセイを中心とした鰭脚類の漂着・混獲記録,1977-1998年
言語 ja
タイトル
タイトル Records of Notthern Fur Seals and Other Pinnipeds Stranded or Taken Incidentally by Coastal Fishery inJapan, 1977-1998
言語 en
言語
言語 eng
キーワード
言語 en
主題Scheme Other
主題 stranding; incidental catch; Pinnipedia; northern fur seal
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ departmental bulletin paper
アクセス権
アクセス権 metadata only access
アクセス権URI http://purl.org/coar/access_right/c_14cb
著者 清田, 雅史

× 清田, 雅史

ja 清田, 雅史

ja-Kana キヨタ, マサシ

en Kiyota, Masashi

Search repository
馬場, 徳寿

× 馬場, 徳寿

ja 馬場, 徳寿

ja-Kana ババ, ノリヒサ

en Baba, Norihisa

Search repository
抄録
内容記述タイプ Abstract
内容記述 Records of strandings and incidental catches of northern fur seals and other pinniped species collected during 1977-1998 were analyzed. Steller sea lions (Eumetopias jubatus) were recorded from Hokkaido (four incidental catches) and central Honshu (one stranding). All the sea lions were juveniles deployed with tags and/or hot branding on Kuril Islands as they were pups. One incidental catch of tagged Kuril seal (Phoca vitulina stejnegeri) was recorded in Hokkaido. These tag recovery records covered only a small portion of strandings and incidental catches of Steller sea lion and phocid seals in Hokkaido. A live young male spotted seal (P. largha) was found in Hiratsuka, on the Pacific coast of central Honshu in May 1997. Live stranding of a young male northern elephant seal (Mirounga angustirostris) was recorded on Niijima Island off the Pacific coast of central Honshu in November 1989. Forty-one strandings and 29 incidental catches in coastal fishery were recorded for northern fur seals (Callorhinus ursinus). Incidental catches of fur seals occurred mostly in northern Japan, with the highest incidence off southeastern Hokkaido. Gill net and set net fisheries comprised 86% of the incidental catch. Strandings were distributed from Hokkaido down to central Honshu on both the Pacific and Japan Sea coasts. Proportion of live northern fur seals among reports of stranding and incidental catch was low (13%), possibly because the government has recommended people to keep away from live fur seals to discourage illegal capture. Origins of tagged northern fur seals consisted of Robben Island (n=31), Kuril Islands (n=5), and Commander Islands (n=9). Recapture rate of tagged fur seals suggested that Japanese adjacent water was an important foraging/wintering area for the Robben and Kuril populations but less important for the Commander population. Juveniles (age <4) constituted the majority of fur seals stranded (49%) or incidentally taken (69%), predominated by pups and yearlings (age <1 ; 32% and 55% of each total). Seals younger than one-year-old occurred intensively from November to March. Monthly number and distribution of pups and yearlings revealed their pattern of migration. Occurrence of older fur seals showed no seasonal peak, suggesting that small number of fur seals were distributed around Japan even in the summer season. Several problems exist on the treatment of stranded or incidentally taken pinnipeds in Japan, e.g., no legal regulation for the management of pinnipeds except northern fur seals, inconsistency and inaccuracy of animal identification and biological measurement in the field, lack of stuff and facility for biological inspection. On the contrary, legal prohibition of handling northern fur seals sometimes hindered timely treatment of stranded and incidentally taken animals. A proper network for pinniped stranding and incidental catch would facilitate management of pinniped populations, biological use of data and samples, and public education on environmental issues.
言語 en
書誌情報 ja : 遠洋水産研究所研究報告
en : Bulletin of National Research Institute of Far Seas Fisheries

巻 36, p. 9-16, ページ数 8, 発行日 1999-03
出版者
出版者 遠洋水産研究所
言語 ja
出版者
出版者 The National Research Institute of Far Seas Fisheries
言語 en
ISSN
収録物識別子タイプ PISSN
収録物識別子 0386-7285
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AN00025949
情報源
識別子タイプ Local
関連識別子 enyo_k_36-9
関連サイト
識別子タイプ URI
関連識別子 https://agriknowledge.affrc.go.jp/RN/2010591237
関連名称 日本農学文献記事索引 (AgriKnowledge)
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