Data/hora: 15/06/2024 22:07:57

Provedor de dados: 	83	
País: 	Brazil	
Título: 	Comparative feeding ecology and habitats use of Crenicichla species (Perciformes: Cichlidae) in a Venezuelan floodplain river	
Autores: 	Montaña,Carmen G.; Winemiller,Kirk O.	
Data: 	2009-06-01	
Ano: 	2009	
Palavras-chave: 	Llanos; Pike cichlid; Neotropics; Niche breadth; Venezuela.	
Resumo: 	Feeding behavior and habitat use of two species of pike cichlids, or mataguaros, (Crenicichla lugubris and C. aff. wallacii) were studied in the río Cinaruco, a floodplain river in the Venezuelan llanos. We examined 309 individuals of C. lugubris and 270 individuals of C. aff. wallacii from both the main channel and lagoons throughout the falling-water phase of the annual hydrological cycle. Crenicichla lugubris was common within habitats that contained rocks or woody debris, whereas C. aff. wallacii was more abundant in lagoons than the main channel, especially within shallow areas containing leaf litter. Although we did not capture C. aff. wallacii in rocky shoals, they sometimes were observed in these habitats. Crenicichla lugubris was larger than C. aff. wallacii (198.4 mm and 44.6 mm, respectively). Analysis of stomach contents showed that larger specimens (&gt; 100 mm SL) C. lugubris fed mostly on small fishes (e. g. characids, cichlids), but juveniles (&lt; 100 mm SL) consumed mostly aquatic insects, fish scales, and shrimps. Crenicichla aff. wallacii fed on aquatic insects and other invertebrates associated with leaf litter substrates.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000200019	
Editor: 	Sociedade Brasileira de Ictiologia	
Relação: 	10.1590/S1679-62252009000200019	
Formato: 	text/html	
Fonte: 	Neotropical Ichthyology  v.7 n.2 2009	
Fonte: 	info:eu-repo/semantics/openAccess