Data/hora: 13/06/2024 18:55:15

Provedor de dados: | Neotropical Ichthyology
País: | Brazil
Título: | Unusual effect of chemical communication on social aggression in juvenile cichlid fish Cichlasoma paranaense (Cichliformes: Cichlidae)
Autores: | Gauy,Ana Carolina dos Santos; Bolognesi,Marcela Cesar; Gonçalves-de-Freitas,Eliane.
Data: | 2019-01-01
Ano: | 2019
Palavras-chave: | Agonistic behavior; Social behavior; Social environment; Social signals; Water renewal.
Resumo: | ABSTRACT Some fish species are socially organized and show a social rank order which is achieved through aggressive interactions. After hierarchy is settled, such species communicate their ranks through several sensorial cues; this communication is adaptive because it reduces detrimental effects from physical contests. Cichlid fish are socially organized and signal their social ranks through visual, acoustic and chemical communication. The response to signaling may vary according to the species and environment; the knowledge of different species is fundamental to understand the evolutionary forces upon their social communication. We tested the effect of chemical signaling on social groups of juvenile cichlid Cichlasoma paranaense by renewing the water in the aquarium, a procedure that washes away chemical information and increases aggressive interactions in other cichlid species. Two treatments were designed: 50% and 0% water renewal. Aggressive interactions were video-recorded immediately before water renewal, 1min, 1h, 2h, and 24h after water renewal. The treatment with the water renewal did not increase aggressive interactions within the group. The 50% water renewal apparently reduced aggressive interactions in this species, indicating an interspecific difference on the aggressive response to chemical variation in the social environment.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000200208
Editor: | Sociedade Brasileira de Ictiologia
Relação: | 10.1590/1982-0224-20180159
Formato: | text/html
Fonte: | Neotropical Ichthyology  v.17 n.2 2019
Fonte: | info:eu-repo/semantics/openAccess