Data/hora: 02/06/2024 10:50:21

Provedor de dados: 	Iheringia Série Zoologia	
País: 	Brazil	
Título: 	Feeding of two Cichlidae species (Perciformes) in an hypertrophic urban lake	
Autores: 	Yafe,Alejandro; Loureiro,Marcelo; Scasso,Flavio; Quintans,Federico.	
Data: 	2002-12-01	
Ano: 	2002	
Palavras-chave: 	Diet; Freshwater trophic web; Cichlasoma; Gymnogeophagus.	
Resumo: 	Diet of two cichlid species, Cichlasoma facetum (Jenyns, 1842), and Gymnogeophagus rhabdotus Hensel, 1870, was studied in Rodó Lake, an urban hypertrophic lake in Uruguay. The stomach contents from 192 individuals of C. facetum and 202 of G. rhabdotus, obtained through seasonal sampling in the year 2000, were analyzed. The occurrence frequency and the alimentary importance index of each food item were calculated for each season and size class in both species. Cichlasoma facetum fed upon insects (mainly chironomid larvae and pupae), fish (Cnesterodon decemmaculatus Jenyns, 1842), and vegetals (algae, periphyton and macrophytes debris); large individuals also fed upon the freshwater shrimp Palaemonetes argentinus Nobili, 1901. Gymnogeophagus rhabdotus consumed zooplankton (mainly copepods), vegetals (algae and detritus) and Chironomidae larvae in a lesser extent.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212002000400009	
Editor: 	Museu de Ciências Naturais	
Relação: 	10.1590/S0073-47212002000400009	
Formato: 	text/html	
Fonte: 	Iheringia. Série Zoologia  v.92 n.4 2002	
Fonte: 	info:eu-repo/semantics/openAccess