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Onset and development of cannibalistic and schooling behavior in the early life stages of Pacific bluefin tuna Thunnus orientalis
http://hdl.handle.net/10069/23024
http://hdl.handle.net/10069/2302488c91222-136e-477f-9f75-2ea6ee2ea9b4
名前 / ファイル | ライセンス | アクション |
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Aqua301_16.pdf (90.2 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2010-03-01 | |||||
タイトル | ||||||
タイトル | Onset and development of cannibalistic and schooling behavior in the early life stages of Pacific bluefin tuna Thunnus orientalis | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Aggressive behavior | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Ontogeny | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Scombridae | |||||
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 | journal article | |||||
著者 |
Sabate, Francisco de la Serna
× Sabate, Francisco de la Serna× Sakakura, Yoshitaka× Tanaka, Yousuke× Kumon, Kazunori× Nikaido, Hideki× Eba, Takeshi× Nishi, Akefumi× Shiozawa, Satoshi× Hagiwara, Atsushi× Masuma, Shukei |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Behavioral development was observed in the early life stages of Pacific bluefin tuna in order to provide fundamental information for improving seedling production techniques. Behavioral observations to quantify swimming, schooling and cannibalistic behavior were made at different developmental stages: pre-flexion (5 days after hatching, DAH), flexion (12 DAH), post-flexion (14 DAH) and juvenile (20 DAH). Video recordings of either observation containers or the rearing tank were made to observe swimming and schooling behavior, respectively. Cannibalistic behavior was estimated by frequency of chase behavior. Swimming speed maintained constant values from 6 DAH (9.2 ± 6.0 mm/s, pre-flexion stage) to 20 DAH (22.4 ± 9.0 mm/s, beginning of juvenile stage) and increased rapidly thereafter to 29 DAH (85.2 ± 32.5 mm/s). Schooling behavior was first observed on 25 DAH juveniles (SL 23.5 ± 5.0 mm). Chase behavior was first observed at 14 DAH (standard length, SL 6.1 ± 0.6 mm, transition at flexion to post-flexion stage) and increased thereafter. We propose that a practical developmental stage for size grading to reduce the mortality by cannibalism should be between post-flexion and early juvenile (SL 6-23 mm), when the cannibalistic behavior onsets and swimming speed are relatively low. | |||||
書誌情報 |
Aquaculture 巻 301, 号 1-4, p. 16-21, 発行日 2010-03-23 |
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出版者 | ||||||
出版者 | Elsevier B.V. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00448486 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00543624 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.aquaculture.2010.01.023 | |||||
権利 | ||||||
権利情報 | Copyright © 2010 Elsevier B.V. All rights reserved. | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Aquaculture, 301(1-4), pp.16-21; 2010 |