The fishing productivity of the Araguaia river, Tocantins, Brazil.
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1106587 |
Resumo: | The Araguaia River belongs to the second largest basin in Brazil and take place in an important transition zone betweenthe Cerrado and Amazon biomes. Despite the relative richness of ichthyofauna, the greatest challenge of artisanal fisheries is the widespread lack of landing information. Lack of knowledge about productivity leads to the myth that the degradation of fish stocks is caused by overfishing. The productivity of the gillnets was compared between drougth and rainy season in the Araguaia River, Tocantins, Brazil. Eleven fishing ground points were sampled with artisanal fishermen, monthly, during 2017 and 2018. 273 throw were carried out with gillnets of different meshes (7 to 22 cm knot to knot). The results indicated low CPUE indices and that there was no difference (P> 0.05) in productivity (kg/throw) and time per throw (hour) between drought (2.42 kg/throw) and rainy season (2,71 kg/ throw). Forage fish species predominated in catches, and meshes of size 11 cm was predominant. It is concluded that the greatest threats to fishing activity are not directly associated with fishing productivity. We also recommend the promotion of a broad debate with society about the future of fishery resources, so that the management process is more inclusive, with greater participation of fishermen. Finally, the Tocantins Araguaia basin encompasses 7.2 million people in 409 municipalities and artisanal fishing is one of the most important activities for maintaining food security, the economy and the culture of thousands of communities that depend on the river. |
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The fishing productivity of the Araguaia river, Tocantins, Brazil.Rio Araguaia-TocantinsPeixePolíticas PúblicasPesca ArtesanalPublic policyArtisanal fishingFishery resourcesThe Araguaia River belongs to the second largest basin in Brazil and take place in an important transition zone betweenthe Cerrado and Amazon biomes. Despite the relative richness of ichthyofauna, the greatest challenge of artisanal fisheries is the widespread lack of landing information. Lack of knowledge about productivity leads to the myth that the degradation of fish stocks is caused by overfishing. The productivity of the gillnets was compared between drougth and rainy season in the Araguaia River, Tocantins, Brazil. Eleven fishing ground points were sampled with artisanal fishermen, monthly, during 2017 and 2018. 273 throw were carried out with gillnets of different meshes (7 to 22 cm knot to knot). The results indicated low CPUE indices and that there was no difference (P> 0.05) in productivity (kg/throw) and time per throw (hour) between drought (2.42 kg/throw) and rainy season (2,71 kg/ throw). Forage fish species predominated in catches, and meshes of size 11 cm was predominant. It is concluded that the greatest threats to fishing activity are not directly associated with fishing productivity. We also recommend the promotion of a broad debate with society about the future of fishery resources, so that the management process is more inclusive, with greater participation of fishermen. Finally, the Tocantins Araguaia basin encompasses 7.2 million people in 409 municipalities and artisanal fishing is one of the most important activities for maintaining food security, the economy and the culture of thousands of communities that depend on the river.ADRIANO PRYSTHON DA SILVA, CNPASA; CAROLYNE RIBEIRO GOMES DIAS, UNIVERSIDADE FEDERAL DO TOCANTINS; JOSE FRANCISCO VALERIO, INSTITUTO FEDERAL DO ESPIRITO SANTO.PRYSTHON, A.DIAS, C. R. G.VALÉRIO, J. F.2019-03-07T00:31:08Z2019-03-07T00:31:08Z2019-02-2720192020-02-14T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleAmerican Journal of Engineering Research, v. 8, n. 2, p. 248-252, Feb. 2019.2320-0847http://www.alice.cnptia.embrapa.br/alice/handle/doc/1106587enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2019-03-07T00:31:22Zoai:www.alice.cnptia.embrapa.br:doc/1106587Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542019-03-07T00:31:22falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542019-03-07T00:31:22Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
The fishing productivity of the Araguaia river, Tocantins, Brazil. |
title |
The fishing productivity of the Araguaia river, Tocantins, Brazil. |
spellingShingle |
The fishing productivity of the Araguaia river, Tocantins, Brazil. PRYSTHON, A. Rio Araguaia-Tocantins Peixe Políticas Públicas Pesca Artesanal Public policy Artisanal fishing Fishery resources |
title_short |
The fishing productivity of the Araguaia river, Tocantins, Brazil. |
title_full |
The fishing productivity of the Araguaia river, Tocantins, Brazil. |
title_fullStr |
The fishing productivity of the Araguaia river, Tocantins, Brazil. |
title_full_unstemmed |
The fishing productivity of the Araguaia river, Tocantins, Brazil. |
title_sort |
The fishing productivity of the Araguaia river, Tocantins, Brazil. |
author |
PRYSTHON, A. |
author_facet |
PRYSTHON, A. DIAS, C. R. G. VALÉRIO, J. F. |
author_role |
author |
author2 |
DIAS, C. R. G. VALÉRIO, J. F. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
ADRIANO PRYSTHON DA SILVA, CNPASA; CAROLYNE RIBEIRO GOMES DIAS, UNIVERSIDADE FEDERAL DO TOCANTINS; JOSE FRANCISCO VALERIO, INSTITUTO FEDERAL DO ESPIRITO SANTO. |
dc.contributor.author.fl_str_mv |
PRYSTHON, A. DIAS, C. R. G. VALÉRIO, J. F. |
dc.subject.por.fl_str_mv |
Rio Araguaia-Tocantins Peixe Políticas Públicas Pesca Artesanal Public policy Artisanal fishing Fishery resources |
topic |
Rio Araguaia-Tocantins Peixe Políticas Públicas Pesca Artesanal Public policy Artisanal fishing Fishery resources |
description |
The Araguaia River belongs to the second largest basin in Brazil and take place in an important transition zone betweenthe Cerrado and Amazon biomes. Despite the relative richness of ichthyofauna, the greatest challenge of artisanal fisheries is the widespread lack of landing information. Lack of knowledge about productivity leads to the myth that the degradation of fish stocks is caused by overfishing. The productivity of the gillnets was compared between drougth and rainy season in the Araguaia River, Tocantins, Brazil. Eleven fishing ground points were sampled with artisanal fishermen, monthly, during 2017 and 2018. 273 throw were carried out with gillnets of different meshes (7 to 22 cm knot to knot). The results indicated low CPUE indices and that there was no difference (P> 0.05) in productivity (kg/throw) and time per throw (hour) between drought (2.42 kg/throw) and rainy season (2,71 kg/ throw). Forage fish species predominated in catches, and meshes of size 11 cm was predominant. It is concluded that the greatest threats to fishing activity are not directly associated with fishing productivity. We also recommend the promotion of a broad debate with society about the future of fishery resources, so that the management process is more inclusive, with greater participation of fishermen. Finally, the Tocantins Araguaia basin encompasses 7.2 million people in 409 municipalities and artisanal fishing is one of the most important activities for maintaining food security, the economy and the culture of thousands of communities that depend on the river. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-03-07T00:31:08Z 2019-03-07T00:31:08Z 2019-02-27 2019 2020-02-14T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
American Journal of Engineering Research, v. 8, n. 2, p. 248-252, Feb. 2019. 2320-0847 http://www.alice.cnptia.embrapa.br/alice/handle/doc/1106587 |
identifier_str_mv |
American Journal of Engineering Research, v. 8, n. 2, p. 248-252, Feb. 2019. 2320-0847 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1106587 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
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Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
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EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
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Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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