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Provedor de dados:  Rev. Bras. Zool.
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
Resumo:  The matrinxã, Brycon amazonicus (Spix & 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
Editor:  Sociedade Brasileira de Zoologia
Relação:  10.1590/S1984-46702009000200001
Formato:  text/html
Fonte:  Zoologia (Curitiba) v.26 n.2 2009
Direitos:  info:eu-repo/semantics/openAccess

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