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Behavior of chum salmon as revealed by micro data loggers off the Sanriku coast, Japan: A review
https://doi.org/10.15083/00038776
https://doi.org/10.15083/000387768dce0e25-ca3d-44e9-9177-7a835a31334c
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00000046661.pdf (1.1 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2007-04-05 | |||||
| タイトル | ||||||
| タイトル | Behavior of chum salmon as revealed by micro data loggers off the Sanriku coast, Japan: A review | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | chum salmon | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | migration | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | vertical movement | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | swimming speed | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | data logger | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | departmental bulletin paper | |||||
| ID登録 | ||||||
| ID登録 | 10.15083/00038776 | |||||
| ID登録タイプ | JaLC | |||||
| 著者 |
Takagi, Yasuaki
× Takagi, Yasuaki× Tanaka, Hideji× Naito, Yasuhiko |
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| 著者所属 | ||||||
| 著者所属 | Otsuchi Marine Research Center, Ocean Research Institute, the University of Tokyo | |||||
| 著者所属 | ||||||
| 著者所属 | National Institute of Polar Research | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The homing season of chum salmon in the Sanriku coastal area is generally late September to January. The surface water temperature is 20℃ at the beginning of the season and decreases to 12℃ at the end. This temperature condition is very tough for the homing migration of chum salmon, since they are typical cold-water species. How do they behave in the waters where temperatures can be close to their upper lethal limit? We monitored swimming behavior of salmon using micro data-loggers to study the relationship between homing behavior and ambient temperature. Seasonal changes in seawater temperature transformed the salmon behavior from deep diving to surface swimming. The deep diving is a type of behavioral thermoregulation in thermally stratified water with high surface temperature, whereas surface swimming helps the salmon to locate their natal rivers. Sexual maturation induced the salmon to seek their natal river in the surface water, even if their temperature was high. An analysis of the vertical movements of the salmon indicated that salmon are negatively buoyant throughout the dive, and thus, the energy cost for deep diving cannot be negligible. Our data indicate the high behavioral adaptability of salmon to such thermally stratified water with high surface temperature. | |||||
| 書誌情報 |
Otsuchi marine science = 東京大学海洋研究所大槌臨海研究センター研究報告 巻 28, p. 6-13, 発行日 2003-03-28 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 13448420 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA11358599 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 452 | |||||
| 出版者 | ||||||
| 出版者 | Otsuchi Marine Research Center, Ocean Research Institute, the University of Tokyo | |||||
| 出版者別名 | ||||||
| 東京大学海洋研究所大槌臨海研究センター | ||||||
