Dinâmica populacional da matrinxã Brycon amazonicus (Characidae) na Amazônia Central

Detalhes bibliográficos
Autor(a) principal: Santos Filho,Leocy C. dos
Data de Publicação: 2009
Outros Autores: Batista,Vandick da S.
Tipo de documento: Artigo
Idioma: por
Título da fonte: Zoologia (Curitiba. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200001
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.
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spelling Dinâmica populacional da matrinxã Brycon amazonicus (Characidae) na Amazônia CentralFisheriesgrowthmortalitystockThe 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.Sociedade Brasileira de Zoologia2009-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200001Zoologia (Curitiba) v.26 n.2 2009reponame:Zoologia (Curitiba. Online)instname:Sociedade Brasileira de Zoologiainstacron:SBZ10.1590/S1984-46702009000200001info:eu-repo/semantics/openAccessSantos Filho,Leocy C. dosBatista,Vandick da S.por2009-07-27T00:00:00Zoai:scielo:S1984-46702009000200001Revistahttp://www.scielo.br/zoolONGhttps://old.scielo.br/oai/scielo-oai.phpsbz@sbzoologia.org.br1984-46891984-4670opendoar:2009-07-27T00:00Zoologia (Curitiba. Online) - Sociedade Brasileira de Zoologiafalse
dc.title.none.fl_str_mv Dinâmica populacional da matrinxã Brycon amazonicus (Characidae) na Amazônia Central
title Dinâmica populacional da matrinxã Brycon amazonicus (Characidae) na Amazônia Central
spellingShingle Dinâmica populacional da matrinxã Brycon amazonicus (Characidae) na Amazônia Central
Santos Filho,Leocy C. dos
Fisheries
growth
mortality
stock
title_short Dinâmica populacional da matrinxã Brycon amazonicus (Characidae) na Amazônia Central
title_full Dinâmica populacional da matrinxã Brycon amazonicus (Characidae) na Amazônia Central
title_fullStr Dinâmica populacional da matrinxã Brycon amazonicus (Characidae) na Amazônia Central
title_full_unstemmed Dinâmica populacional da matrinxã Brycon amazonicus (Characidae) na Amazônia Central
title_sort Dinâmica populacional da matrinxã Brycon amazonicus (Characidae) na Amazônia Central
author Santos Filho,Leocy C. dos
author_facet Santos Filho,Leocy C. dos
Batista,Vandick da S.
author_role author
author2 Batista,Vandick da S.
author2_role author
dc.contributor.author.fl_str_mv Santos Filho,Leocy C. dos
Batista,Vandick da S.
dc.subject.por.fl_str_mv Fisheries
growth
mortality
stock
topic Fisheries
growth
mortality
stock
description 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.
publishDate 2009
dc.date.none.fl_str_mv 2009-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200001
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200001
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S1984-46702009000200001
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Zoologia
publisher.none.fl_str_mv Sociedade Brasileira de Zoologia
dc.source.none.fl_str_mv Zoologia (Curitiba) v.26 n.2 2009
reponame:Zoologia (Curitiba. Online)
instname:Sociedade Brasileira de Zoologia
instacron:SBZ
instname_str Sociedade Brasileira de Zoologia
instacron_str SBZ
institution SBZ
reponame_str Zoologia (Curitiba. Online)
collection Zoologia (Curitiba. Online)
repository.name.fl_str_mv Zoologia (Curitiba. Online) - Sociedade Brasileira de Zoologia
repository.mail.fl_str_mv sbz@sbzoologia.org.br
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