Áreas da região lagunar Cananéia-Iguape suscetíveis de exploração pesqueira segundo diversos tipos de tecnologia: I - Pesca com cerco fixo
Autor(a) principal: | |
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Data de Publicação: | 1980 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Boletim do Instituto Oceanográfico |
Texto Completo: | https://www.revistas.usp.br/biocean/article/view/39943 |
Resumo: | With the purpose of obtaining data which could be useful for complementing investigations on estuarine biological oceanography, the authors carried out a survey on the distribution and volume of catch produced by fish-traps used by traditional fishermen in the lagoon region of Cananéia-Iguape (São Paulo, Brasil), mainly for catching mullet. As many as 170 fish-traps were initially spotted and mapped in the whole region, some of which are concentrated in particular areas that seem to be points of more freauent passage of mullet and other fishes, according to the experience and observations of regional fishermen. In consequence of the dam recently built on the Valo Grande - an artificial canal conich formerly linked the RibeiraRiver to the lagoon system of Cananéia-Iguape - it is expected that the sea-water circulation within the lagoon will be intensified, with a consequent increase in the salinity rates of its waters, which in turn will probably affect the ecological balance of time. The authors suggest that a continuous monitoring of the volume and composition of the commercial catch produced by the fish-traps operating in the lagoon-region could eventually offer useful data for detecting the alterations of distribution of the several different fish species that are found in the lagoon, in consequence of the foreseen changes in the salinity rates of its waters. |
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Boletim do Instituto Oceanográfico |
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Áreas da região lagunar Cananéia-Iguape suscetíveis de exploração pesqueira segundo diversos tipos de tecnologia: I - Pesca com cerco fixo With the purpose of obtaining data which could be useful for complementing investigations on estuarine biological oceanography, the authors carried out a survey on the distribution and volume of catch produced by fish-traps used by traditional fishermen in the lagoon region of Cananéia-Iguape (São Paulo, Brasil), mainly for catching mullet. As many as 170 fish-traps were initially spotted and mapped in the whole region, some of which are concentrated in particular areas that seem to be points of more freauent passage of mullet and other fishes, according to the experience and observations of regional fishermen. In consequence of the dam recently built on the Valo Grande - an artificial canal conich formerly linked the RibeiraRiver to the lagoon system of Cananéia-Iguape - it is expected that the sea-water circulation within the lagoon will be intensified, with a consequent increase in the salinity rates of its waters, which in turn will probably affect the ecological balance of time. The authors suggest that a continuous monitoring of the volume and composition of the commercial catch produced by the fish-traps operating in the lagoon-region could eventually offer useful data for detecting the alterations of distribution of the several different fish species that are found in the lagoon, in consequence of the foreseen changes in the salinity rates of its waters. Universidade de São Paulo. Instituto Oceanográfico1980-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/biocean/article/view/3994310.1590/S0373-55241980000200066Boletim do Instituto Oceanográfico; v. 29 n. 2 (1980); 329-335 Boletim do Instituto Oceanografico; Vol. 29 No. 2 (1980); 329-335 Boletim do Instituto Oceanográfico; Vol. 29 Núm. 2 (1980); 329-335 2316-89510373-5524reponame:Boletim do Instituto Oceanográficoinstname:Instituto Oceanográfico da Universidade de São Paulo (IOUSP)instacron:USPporhttps://www.revistas.usp.br/biocean/article/view/39943/42807Ramos, Eduardo B.Gallo, JaquesVerrone, Vicente M.A.info:eu-repo/semantics/openAccess2012-08-23T13:06:20Zoai:revistas.usp.br:article/39943Revistahttps://www.revistas.usp.br/bioceanPUBhttps://www.revistas.usp.br/biocean/oaiamspires@usp.br0373-55240373-5524opendoar:2012-08-23T13:06:20Boletim do Instituto Oceanográfico - Instituto Oceanográfico da Universidade de São Paulo (IOUSP)false |
dc.title.none.fl_str_mv |
Áreas da região lagunar Cananéia-Iguape suscetíveis de exploração pesqueira segundo diversos tipos de tecnologia: I - Pesca com cerco fixo |
title |
Áreas da região lagunar Cananéia-Iguape suscetíveis de exploração pesqueira segundo diversos tipos de tecnologia: I - Pesca com cerco fixo |
spellingShingle |
Áreas da região lagunar Cananéia-Iguape suscetíveis de exploração pesqueira segundo diversos tipos de tecnologia: I - Pesca com cerco fixo Ramos, Eduardo B. |
title_short |
Áreas da região lagunar Cananéia-Iguape suscetíveis de exploração pesqueira segundo diversos tipos de tecnologia: I - Pesca com cerco fixo |
title_full |
Áreas da região lagunar Cananéia-Iguape suscetíveis de exploração pesqueira segundo diversos tipos de tecnologia: I - Pesca com cerco fixo |
title_fullStr |
Áreas da região lagunar Cananéia-Iguape suscetíveis de exploração pesqueira segundo diversos tipos de tecnologia: I - Pesca com cerco fixo |
title_full_unstemmed |
Áreas da região lagunar Cananéia-Iguape suscetíveis de exploração pesqueira segundo diversos tipos de tecnologia: I - Pesca com cerco fixo |
title_sort |
Áreas da região lagunar Cananéia-Iguape suscetíveis de exploração pesqueira segundo diversos tipos de tecnologia: I - Pesca com cerco fixo |
author |
Ramos, Eduardo B. |
author_facet |
Ramos, Eduardo B. Gallo, Jaques Verrone, Vicente M.A. |
author_role |
author |
author2 |
Gallo, Jaques Verrone, Vicente M.A. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Ramos, Eduardo B. Gallo, Jaques Verrone, Vicente M.A. |
description |
With the purpose of obtaining data which could be useful for complementing investigations on estuarine biological oceanography, the authors carried out a survey on the distribution and volume of catch produced by fish-traps used by traditional fishermen in the lagoon region of Cananéia-Iguape (São Paulo, Brasil), mainly for catching mullet. As many as 170 fish-traps were initially spotted and mapped in the whole region, some of which are concentrated in particular areas that seem to be points of more freauent passage of mullet and other fishes, according to the experience and observations of regional fishermen. In consequence of the dam recently built on the Valo Grande - an artificial canal conich formerly linked the RibeiraRiver to the lagoon system of Cananéia-Iguape - it is expected that the sea-water circulation within the lagoon will be intensified, with a consequent increase in the salinity rates of its waters, which in turn will probably affect the ecological balance of time. The authors suggest that a continuous monitoring of the volume and composition of the commercial catch produced by the fish-traps operating in the lagoon-region could eventually offer useful data for detecting the alterations of distribution of the several different fish species that are found in the lagoon, in consequence of the foreseen changes in the salinity rates of its waters. |
publishDate |
1980 |
dc.date.none.fl_str_mv |
1980-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/biocean/article/view/39943 10.1590/S0373-55241980000200066 |
url |
https://www.revistas.usp.br/biocean/article/view/39943 |
identifier_str_mv |
10.1590/S0373-55241980000200066 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/biocean/article/view/39943/42807 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Instituto Oceanográfico |
publisher.none.fl_str_mv |
Universidade de São Paulo. Instituto Oceanográfico |
dc.source.none.fl_str_mv |
Boletim do Instituto Oceanográfico; v. 29 n. 2 (1980); 329-335 Boletim do Instituto Oceanografico; Vol. 29 No. 2 (1980); 329-335 Boletim do Instituto Oceanográfico; Vol. 29 Núm. 2 (1980); 329-335 2316-8951 0373-5524 reponame:Boletim do Instituto Oceanográfico instname:Instituto Oceanográfico da Universidade de São Paulo (IOUSP) instacron:USP |
instname_str |
Instituto Oceanográfico da Universidade de São Paulo (IOUSP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Boletim do Instituto Oceanográfico |
collection |
Boletim do Instituto Oceanográfico |
repository.name.fl_str_mv |
Boletim do Instituto Oceanográfico - Instituto Oceanográfico da Universidade de São Paulo (IOUSP) |
repository.mail.fl_str_mv |
amspires@usp.br |
_version_ |
1797049930668310528 |