1998年2月
Whole-body cortisol concentrations and ontogeny of aggressive behavior in yellowtail (Seriola quinqueradiata Temminck & Schlegel, Carangidae)
GENERAL AND COMPARATIVE ENDOCRINOLOGY
- ,
- ,
- 巻
- 109
- 号
- 2
- 開始ページ
- 286
- 終了ページ
- 292
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1006/gcen.1997.7032
- 出版者・発行元
- ACADEMIC PRESS INC
Ontogenetic changes in whole-body immunoreactive cortisol concentrations (IRC) and aggressive behavior were examined in yellowtail Seriola quinqueradiata (Temminck & Schlegel; Carangidae). Baseline IRC significantly increased during the transition from larval to juvenile stage and was correlated with the onset of aggressive behavior. Handled fish (13.1 +/- 2.6 ng/g tissue) showed an IRC level about three times higher than unhandled fish (4.7 +/- 1.4 ng/g tissue), indicating that whole-body immunoreactive cortisol level may be an indicator of stress in juvenile yellowtails. Behaviorally subordinate fish (8.6 +/- 1.6 ng/g tissue, n = 4) showed IRC levels significantly higher than dominant fish (0.6 +/- 0.3 ng/g tissue, n = 4). Whole-body immunoreactive cortisol levels may thus reflect stress and social status in juvenile yellowtails, and the inverse relationship between social rank and IRC may result from agonistic interactions. (C) 1998 Academic Press.
- リンク情報
- ID情報
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- DOI : 10.1006/gcen.1997.7032
- ISSN : 0016-6480
- Web of Science ID : WOS:000071912700015