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	Provedor de dados BJMBR (1) Autor Barreto,R.E. (1) Duarte,C.R.A. (1) Luchiari,A.C. (1) Ramanzini,G.C. (1) Volpato,G.L. (1) Palavra-chave Aggression (1) Eye color (1) Fish (1) Oreochromis niloticus (1) Social hierarchy (1) Social stress (1) Mais... Tipo do documento Info:eu-repo/semantics/other (1) Ano 2003 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Eye color as an indicator of social rank in the fish Nile tilapia BJMBR Volpato,G.L.; Luchiari,A.C.; Duarte,C.R.A.; Barreto,R.E.; Ramanzini,G.C.. We investigated the association of eye color with the dominant-subordinate relationship in the fish Nile tilapia, Oreochromis niloticus. Eye color pattern was also examined in relation to the intensity of attacks. We paired 20 size-matched fish (intruder: 73.69 ± 11.49 g; resident: 75.42 ± 8.83 g) and evaluated eye color and fights. These fish were isolated in individual aquaria for 10 days and then their eye color was measured 5 min before pairing (basal values). Twenty minutes after pairing, eye color and fights were quantified for 10 min. Clear establishment of social hierarchy was observed in 7 of 10 pairs of fish. Number of attacks ranged from 1 to 168 among pairs. The quartile was calculated for these data and the pairs were then divided into two... Tipo: Info:eu-repo/semantics/other Palavras-chave: Aggression; Eye color; Social hierarchy; Social stress; Fish; Oreochromis niloticus. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001200007 Registros recuperados: 1 Primeira ... 1 ... Última

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