Data/hora: 12/06/2024 11:51:58

Provedor de dados: 	83	
País: 	Brazil	
Título: 	Feeding habits of Thoracocharax stellatus (Characiformes: Gasteropelecidae) in the upper rio Tocantins, Brazil	
Autores: 	Netto-Ferreira,André L.; Albrecht,Míriam P.; Nessimian,Jorge L.; Caramaschi,Érica P.	
Data: 	2007-03-01	
Ano: 	2007	
Palavras-chave: 	Hatchetfishes; Autoecology; Diet; Tocantins-Araguaia basin.	
Resumo: 	The silver hatchetfish Thoracocharax stellatus is one of the approximately 200 fish species recorded for the upper rio Tocantins, in the region where it was impounded by the Serra da Mesa hydroelectric dam. Analysis of the stomach contents of 88 specimens revealed a diet consisting almost entirely of insects (99.6%), most of which were terrestrial (87.6%). Ants, beetles, and mayflies were the main food items. Dawn and dusk seemed to be the periods of highest foraging activity for T. stellatus. As a specialist on terrestrial insects, this species has a close connection with the region near the river bank, where prey is provided from the associated riparian vegetation. Despite the impoundment and depletion of the land-water ecotone observed in later stages of reservoir formation, no significant changes in the diet of the few remnant specimens were recorded, which seems to indicate little feeding flexibility. Thus, feeding seemed to be an overriding factor for the displacement of this species after river impoundment.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000100009	
Editor: 	Sociedade Brasileira de Ictiologia	
Relação: 	10.1590/S1679-62252007000100009	
Formato: 	text/html	
Fonte: 	Neotropical Ichthyology  v.5 n.1 2007	
Fonte: 	info:eu-repo/semantics/openAccess