Data/hora: 05/06/2024 04:39:58

Provedor de dados: 	Revista Brasileira de Zoologia	
País: 	Brazil	
Título: 	Dinâmica populacional da matrinxã Brycon amazonicus (Characidae) na Amazônia Central	
Autores: 	Santos Filho,Leocy C. dos; Batista,Vandick da S.	
Data: 	2009-06-01	
Ano: 	2009	
Palavras-chave: 	Fisheries; Growth; Mortality; Stock.	
Resumo: 	The matrinxã, Brycon amazonicus (Spix &amp;amp; Agassiz, 1829) is one of the most important fishery resources of the Amazonas state. Its population dynamics in Central Amazon was analyzed based on total landing and biometry data registered in the main landing port of Manaus, between 1994 and 2002. Growth and mortality rates were estimated separately for the rivers Purus, Madeira and Solimões. Differences in size structure and growth curves suggest that different population units exist among these rivers, requiring individualized evaluation and fisheries management strategies. The analysis of the yield per recruit does not indicate overexploitation. However, the highest relative exploitation rate was observed in the Madeira river. The suggested management strategies are related to restrictions to the fishery in the main fishing grounds during the migratory dispersal period, instead of restrictions during reproductive periods.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Português	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200001	
Editor: 	Sociedade Brasileira de Zoologia	
Relação: 	10.1590/S1984-46702009000200001	
Formato: 	text/html	
Fonte: 	Zoologia (Curitiba)  v.26 n.2 2009	
Fonte: 	info:eu-repo/semantics/openAccess