Data/hora: 06/06/2024 10:10:13

Provedor de dados: 	83	
País: 	Brazil	
Título: 	Feeding ecology of three juvenile mojarras (Gerreidae) in a tropical estuary of northeastern Brazil	
Autores: 	Araújo,Antônio Limeira Felinto de; Dantas,Renato Pereira; Pessanha,André Luiz Machado.	
Data: 	2016-01-01	
Ano: 	2016	
Palavras-chave: 	Distribution; Estuarine fishes; Resource partitioning; Shallow water.	
Resumo: 	ABSTRACT Distributions and feeding ecology of mojarra species from shallow water of a tropical estuary in Northeastern Brazil were observed aiming to investigate differences in distribution and resource partitioning among juveniles of three species of mojarras. Fishes were collected with a beach seine across four sites along a salinity gradient from January to December of 2011. Highest abundances were recorded during the rainy season in the upper and middle estuary. Microcrustaceans, mainly copepods, were the preferential prey items of all mojarras, irrespective of size or hydrological season, suggesting these areas may be important nursery habitats. Juveniles of mojarra used two important mechanisms for exploitation of resources: (1) spatial segregation along the salinity and temperature gradient, such as abundance of Eucinostomus melanopterus increased from downstream to upstream estuary, while Eugerres brasilianus displayed an opposite pattern; (2) differences related to the volumetric proportion of the main prey items, with indications that E. melanopterus and Diapterus rhombeus fed predominantly on Calanoida and Cyclopoida, while the diet of E. brasilianus was dominated by items of infauna. Such strategies were important for resource partitioning, favouring the coexistence of these three species in the estuary.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000100220	
Editor: 	Sociedade Brasileira de Ictiologia	
Relação: 	10.1590/1982-0224-20150039	
Formato: 	text/html	
Fonte: 	Neotropical Ichthyology  v.14 n.1 2016	
Fonte: 	info:eu-repo/semantics/openAccess