Influence of rainfall on tropical coastal artisanal fisheries: a case study of Northern Mozambique
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://scielo.pt/scielo.php?script=sci_arttext&pid=S1646-88722012000400007 |
Resumo: | The artisanal catch contributed about 87% of the overall annual marine fish production in Mozambique, estimated to 115,000 -140,000 tons, as per fish statistics of the period 2000 and 2004. The availability of most of the coastal marine fisheries depends on a number of factors among which the freshwater input into the coastal waters, either though the rivers or coastal rainfall drainage, as it provides nutrients into the coastal waters that stimulate the primary production. This would enhance the survival and growth of coastal fish species, most of which nurse and breed in estuaries and mangrove swamps. The effect of the freshwater input into the coastal zones through the rainfall 1995-2008 on the landing of artisanal catches 1998-2008 in the northern Mozambique (15o- 17o S) was analysed. The results showed that the artisanal annual total catch were significantly correlated to the coastal rainfall lagged two years, with r= 0.7862 and p=0.004. The two-year lag matches the longevity of Engraulididae, Clupeidae and Leiognathidae, and the maturity age of Carangidea, the top four dominant fish families. This result emphasises the role of freshwater in productivity of coastal waters and in the survival and growth rate of the fish population during the earlier stage of their life cycle. The findings in this work may contribute to predict the fish production, and hence improve the management measures of the artisanal fisheries, through setting sustainable fishing quotas. Further, our results contribute to improve our understanding of the climate influence on artisanal fisheries, and so to provide insights of their vulnerability and adaptive capacity to the climate change. |
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Influence of rainfall on tropical coastal artisanal fisheries: a case study of Northern MozambiqueCoastal rainfallcoastal productivityfish growthcatch predictionfisheries managementThe artisanal catch contributed about 87% of the overall annual marine fish production in Mozambique, estimated to 115,000 -140,000 tons, as per fish statistics of the period 2000 and 2004. The availability of most of the coastal marine fisheries depends on a number of factors among which the freshwater input into the coastal waters, either though the rivers or coastal rainfall drainage, as it provides nutrients into the coastal waters that stimulate the primary production. This would enhance the survival and growth of coastal fish species, most of which nurse and breed in estuaries and mangrove swamps. The effect of the freshwater input into the coastal zones through the rainfall 1995-2008 on the landing of artisanal catches 1998-2008 in the northern Mozambique (15o- 17o S) was analysed. The results showed that the artisanal annual total catch were significantly correlated to the coastal rainfall lagged two years, with r= 0.7862 and p=0.004. The two-year lag matches the longevity of Engraulididae, Clupeidae and Leiognathidae, and the maturity age of Carangidea, the top four dominant fish families. This result emphasises the role of freshwater in productivity of coastal waters and in the survival and growth rate of the fish population during the earlier stage of their life cycle. The findings in this work may contribute to predict the fish production, and hence improve the management measures of the artisanal fisheries, through setting sustainable fishing quotas. Further, our results contribute to improve our understanding of the climate influence on artisanal fisheries, and so to provide insights of their vulnerability and adaptive capacity to the climate change.Associação Portuguesa dos Recursos Hídricos2012-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S1646-88722012000400007Revista de Gestão Costeira Integrada v.12 n.4 2012reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S1646-88722012000400007Hoguane,Antonio MubangoCuamba,Ezidio da LuciaGammelsrød,Torinfo:eu-repo/semantics/openAccess2024-02-06T17:23:44Zoai:scielo:S1646-88722012000400007Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:29:48.446648Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Influence of rainfall on tropical coastal artisanal fisheries: a case study of Northern Mozambique |
title |
Influence of rainfall on tropical coastal artisanal fisheries: a case study of Northern Mozambique |
spellingShingle |
Influence of rainfall on tropical coastal artisanal fisheries: a case study of Northern Mozambique Hoguane,Antonio Mubango Coastal rainfall coastal productivity fish growth catch prediction fisheries management |
title_short |
Influence of rainfall on tropical coastal artisanal fisheries: a case study of Northern Mozambique |
title_full |
Influence of rainfall on tropical coastal artisanal fisheries: a case study of Northern Mozambique |
title_fullStr |
Influence of rainfall on tropical coastal artisanal fisheries: a case study of Northern Mozambique |
title_full_unstemmed |
Influence of rainfall on tropical coastal artisanal fisheries: a case study of Northern Mozambique |
title_sort |
Influence of rainfall on tropical coastal artisanal fisheries: a case study of Northern Mozambique |
author |
Hoguane,Antonio Mubango |
author_facet |
Hoguane,Antonio Mubango Cuamba,Ezidio da Lucia Gammelsrød,Tor |
author_role |
author |
author2 |
Cuamba,Ezidio da Lucia Gammelsrød,Tor |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Hoguane,Antonio Mubango Cuamba,Ezidio da Lucia Gammelsrød,Tor |
dc.subject.por.fl_str_mv |
Coastal rainfall coastal productivity fish growth catch prediction fisheries management |
topic |
Coastal rainfall coastal productivity fish growth catch prediction fisheries management |
description |
The artisanal catch contributed about 87% of the overall annual marine fish production in Mozambique, estimated to 115,000 -140,000 tons, as per fish statistics of the period 2000 and 2004. The availability of most of the coastal marine fisheries depends on a number of factors among which the freshwater input into the coastal waters, either though the rivers or coastal rainfall drainage, as it provides nutrients into the coastal waters that stimulate the primary production. This would enhance the survival and growth of coastal fish species, most of which nurse and breed in estuaries and mangrove swamps. The effect of the freshwater input into the coastal zones through the rainfall 1995-2008 on the landing of artisanal catches 1998-2008 in the northern Mozambique (15o- 17o S) was analysed. The results showed that the artisanal annual total catch were significantly correlated to the coastal rainfall lagged two years, with r= 0.7862 and p=0.004. The two-year lag matches the longevity of Engraulididae, Clupeidae and Leiognathidae, and the maturity age of Carangidea, the top four dominant fish families. This result emphasises the role of freshwater in productivity of coastal waters and in the survival and growth rate of the fish population during the earlier stage of their life cycle. The findings in this work may contribute to predict the fish production, and hence improve the management measures of the artisanal fisheries, through setting sustainable fishing quotas. Further, our results contribute to improve our understanding of the climate influence on artisanal fisheries, and so to provide insights of their vulnerability and adaptive capacity to the climate change. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-12-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S1646-88722012000400007 |
url |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S1646-88722012000400007 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S1646-88722012000400007 |
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 |
Associação Portuguesa dos Recursos Hídricos |
publisher.none.fl_str_mv |
Associação Portuguesa dos Recursos Hídricos |
dc.source.none.fl_str_mv |
Revista de Gestão Costeira Integrada v.12 n.4 2012 reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137365048950784 |