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西部太平洋赤道反流域の漂流物について
http://hdl.handle.net/10069/29733
http://hdl.handle.net/10069/29733741d4bdb-918d-4269-939d-c1e32553af46
名前 / ファイル | ライセンス | アクション |
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suisan77_097.pdf (580.5 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2012-11-14 | |||||
タイトル | ||||||
タイトル | 西部太平洋赤道反流域の漂流物について | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 漁場 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Fishing ground | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 漂流物 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Flotsam | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 流木 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Drift wood | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 旋網漁業 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Tuna purse seine | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 魚探反応 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Echo-sounder response | |||||
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 | |||||
著者 |
秋重, 祐章
× 秋重, 祐章× 吉村, 浩× 西田, 英明× 久野, 俊行× 森井, 康宏× 青島, 隆 |
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著者別名 | ||||||
姓名 | Akishige, Yusho | |||||
著者別名 | ||||||
姓名 | Yoshimura, Hiroshi | |||||
著者別名 | ||||||
姓名 | Nishida, Hideaki | |||||
著者別名 | ||||||
姓名 | Kuno, Toshiyuki | |||||
著者別名 | ||||||
姓名 | Morii, Yasuhiro | |||||
著者別名 | ||||||
姓名 | Aoshima, Takashi | |||||
その他のタイトル | ||||||
その他のタイトル | Flotsam in the Equatorial Counter Current Region of the Western Pacific with Reference to Tuna Purse Seine Fishing | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Types and densities of flotsam in the Equatorial Counter Current area of the western Pacific were recorded for 19 years. In all 16 types were observed, of which drift wood accounted for 81%. Densities of flotsam fluctuated seasonally, presumably reflecting the seasonal flucutuation of rain fall on the lands where flotsam originated. The densities were relatively low in the years of El Nino period. Responses of fish on echo-sounder record positively related with the size of drift wood, whereas the effect of the flotsam size on catch with purse seine was obscured by a high degree of variance in the latter. Out of 69 hauls of the purse seine operated during the survey period for training purposa, two hauls yielded more than 100 tons of skipjack indicating extremely large school of fish sometimes accompany flotsam. | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 1)西部太平洋の赤道反流域で,過去19年間漂流物の種類や分布密度を調べた。 2)漂流物の種類は16種類におよんだが,流木が最も多く全体の81%に達した。 3)漂流物の分布密度は季節により異なり、雨期と乾期の影響があることが示唆された。 4)エルニーニョ現象発生年の漂流物の分布密度は,多くの場合その季節の平均分布密度を下回った。 5)魚探反応の強さが流木の大きさと正の相関関係を示したが,漁獲は変動がきわめて大きく,漁獲高と流木の大きさとの関係ははっきりしなかった。 6)カツオ・マグロは時として大群となって漂流物に付くことがあり,100トン以上の魚群を網に入れたことが2回あった。 | |||||
書誌情報 |
長崎大学水産学部研究報告 en : Bulletin of the Faculty of Fisheries, Nagasaki University 巻 77, p. 97-102, 発行日 1996-03 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 05471427 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00178473 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
論文ID(NAID) | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | NAID | |||||
関連識別子 | 110000294136 | |||||
出版者 | ||||||
出版者 | 長崎大学水産学部 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 長崎大学水産学部研究報告, v.77, pp.97-102; 1996 |