Data/hora: 16/06/2024 00:36:18

Provedor de dados: 	83	
País: 	Brazil	
Título: 	Flight response of the barber surgeonfish, Acanthurus bahianus Castelnau, 1855 (Teleostei: Acanthuridae), to spearfisher presence	
Autores: 	Benevides,Larissa J.; Nunes,José de Anchieta C. C.; Costa,Tiego L. A.; Sampaio,Cláudio L. S.	
Data: 	2016-01-01	
Ano: 	2016	
Palavras-chave: 	Antipredator behaviour; Brazil; Flight initiation distance; Rocky reefs; Spearfishing.	
Resumo: 	ABSTRACT When confronted by predators, prey need to make an economic decision between continuing their current activity or flee. Flight Initiation Distance (FID), the distance at which an organism begins to flee an approaching threat, has been used to indicate an animal's fearfulness level and a way to examine factors influencing escape decisions. Here we investigated how the FID of the barber surgeonfish, Acanthurus bahianus, responds to the presence of spearfishers in a fishing site in northeast Brazil. Specifically, we examined whether the FID was influenced by body and group size; by the heterogeneity of species in groups formation; and the distance to shelter. Significant differences in FID were observed with increasing body size. We found no significant relationship of FID with size or group formation, neither with distance to shelter. Preferences in forming groups with A. bahianus were seen among some species, and a higher FID was associated with less sheltered substrates. Results obtained here support theories suggesting that spearfishers do influence fish behavior. We highlight that future research should focus on the indirect impacts of spearfishing on the structure of marine communities, emphasizing the anti-predator behaviour of juvenile and adult target fishes.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000100219	
Editor: 	Sociedade Brasileira de Ictiologia	
Relação: 	10.1590/1982-0224-20150010	
Formato: 	text/html	
Fonte: 	Neotropical Ichthyology  v.14 n.1 2016	
Fonte: 	info:eu-repo/semantics/openAccess