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Onset and development of aggressive behavior in the early life stages of the seven-band grouper Epinephelus septemfasciatus


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タイトル: Onset and development of aggressive behavior in the early life stages of the seven-band grouper Epinephelus septemfasciatus
著者: de la S. Sabate, F. / Sakakura, Yoshitaka / Shiozaki, Masashi / Hagiwara, A.
発行日: 2009年 5月 4日
出版者: ELSEVIER
引用: Aquaculture, 290(1-2), pp.97-103; 2009
抄録: Onset and development of aggressive behavior were observed in the early life stages of seven-band grouper Epinephelus septemfasciatus. Fish culture was divided into two terms: the first term, from hatch until 21 days after hatching (DAH); and the second term, from 21 DAH until settlement (65 DAH). During the second term the effect of different aeration rate on survival was investigated. Survival during the first term was 14.1 ± 7.1%. In the second term, survival in control tanks (aeration rate 200 mL/min) was 14.7 ± 10.2% and 18.8 ± 7.8% in the increasing aeration tanks (aeration rate 200-800 mL/min). Behavioral observations were conducted at about 8-day intervals and aggressive behavior was quantified by the frequency of chase behavior. Aggressive behavior was first observed on 52 DAH when pigment appeared on the dorsal area of the metamorphosing larvae (standard length 16.6 ± 6.0 mm). Aggressive behavior significantly increased from 59 DAH coinciding with the beginning of settlement.
キーワード: Aggressive behavior / Epinephelus septemfasciatus / Ontogeny / Swimming behavior
URI: http://hdl.handle.net/10069/21810
ISSN: 00448486
DOI: 10.1016/j.aquaculture.2009.02.005
権利: Copyright (c) 2009 Elsevier B.V. All rights reserved.
資料タイプ: Journal Article
原稿種類: author
出現コレクション:080 学術雑誌論文

引用URI : http://hdl.handle.net/10069/21810

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