Aspects of the population dynamics of Anomalocardia brasiliana: subsidies for sustainable fishing in the west coast of Ceará, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por eng |
Título da fonte: | Ciência animal brasileira (Online) |
Texto Completo: | https://revistas.ufg.br/vet/article/view/72781 |
Resumo: | Shellfish is an artisanal activity and family subsistence way of the coastal communities. Being the Anomalocardia brasiliana is one of the main mollusc species exploited. This paper aims to obtain information about the temporal distribution, growth, yield and the gonadosomatic index of the bivalve mollusc A. brasiliana in a natural bank in order to provide subsidies for the sustainable extraction of this resource. The present study was carried out in an area of the Acaraú River estuary, in Volta do Rio Beach, in Acaraú city. Samples were collected monthly during a year at spring low tide, using the random squares method. The temperature of the water, the sediment and the salinity were measured in situ. Sediment samples were collected for granulometric analysis. The specimens were quantified, measured and weighed individually. A total of 8,507 specimens of A. brasiliana were sampled, the highest density recorded was 2,534 individuals/m², those with the longest shell length were between 21 and 25 mm, the meat yield presented an average value of 12.42%. The means of the biometric variables of the individuals presented significant differences during the sample period. Frequency histograms evidenced the presence of adult individuals, in the process of sexual and juvenile differentiation, indicating a continuous reproductive cycle in the natural stock studied. These results will aid in the sustainable shellfish exercise on the Volta do Rio beach. It recommended the capture of A. brasiliana with length above 20 mm and the reduction of the capture effort in the months of April to September, when the highest density of juveniles was observed, in order to maintain the sustainability of this stock.Keywords: Shellfish; Fishing Resource; Fisheries Regulations. |
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Aspects of the population dynamics of Anomalocardia brasiliana: subsidies for sustainable fishing in the west coast of Ceará, BrazilAspectos da dinâmica populacional de Anomalocardia brasiliana: subsídios para a pesca sustentável no Litoral Oeste do Ceará, BrasilShellfish is an artisanal activity and family subsistence way of the coastal communities. Being the Anomalocardia brasiliana is one of the main mollusc species exploited. This paper aims to obtain information about the temporal distribution, growth, yield and the gonadosomatic index of the bivalve mollusc A. brasiliana in a natural bank in order to provide subsidies for the sustainable extraction of this resource. The present study was carried out in an area of the Acaraú River estuary, in Volta do Rio Beach, in Acaraú city. Samples were collected monthly during a year at spring low tide, using the random squares method. The temperature of the water, the sediment and the salinity were measured in situ. Sediment samples were collected for granulometric analysis. The specimens were quantified, measured and weighed individually. A total of 8,507 specimens of A. brasiliana were sampled, the highest density recorded was 2,534 individuals/m², those with the longest shell length were between 21 and 25 mm, the meat yield presented an average value of 12.42%. The means of the biometric variables of the individuals presented significant differences during the sample period. Frequency histograms evidenced the presence of adult individuals, in the process of sexual and juvenile differentiation, indicating a continuous reproductive cycle in the natural stock studied. These results will aid in the sustainable shellfish exercise on the Volta do Rio beach. It recommended the capture of A. brasiliana with length above 20 mm and the reduction of the capture effort in the months of April to September, when the highest density of juveniles was observed, in order to maintain the sustainability of this stock.Keywords: Shellfish; Fishing Resource; Fisheries Regulations.A mariscagem é uma atividade artesanal e meio de subsistência familiar de diversas comunidades litorâneas ao longo da costa brasileira, sendo Anomalocardia brasiliana uma das principais espécies de molusco exploradas. Esse trabalho objetivou obter informações sobre a distribuição temporal, crescimento, rendimento e o índice gonadossomático do molusco bivalve A. brasiliana em um estoque natural a fim de fornecer subsídios para a extração sustentável deste recurso. O estudo foi realizado em uma área do estuário do rio Acaraú, na Praia Volta do Rio, município de Acaraú, Ceará, Brasil. As coletas foram realizadas mensalmente durante um ano na maré baixa de sizígia, utilizando o método dos quadrados aleatórios. A temperatura da água, do sedimento e a salinidade foram aferidas in situ. Foram coletadas amostras de sedimento para análise granulométrica. Os espécimes foram quantificados, mensurados e pesados individualmente. Foram amostrados um total de 8.507 exemplares de A. brasiliana, a maior densidade registrada teve 2.534 indivíduos/m², aqueles com maior comprimento de concha tinham entre 21 e 25 mm, o rendimento da carne apresentou um valor médio de 12,42%. As médias das variáveis biométricas dos indivíduos apresentaram diferenças significativas durante o período amostral. Os histogramas de frequência evidenciaram a presença de indivíduos adultos e juvenis, indicando um ciclo reprodutivo contínuo no estoque natural estudado. Estes resultados auxiliarão no exercício da mariscagem sustentável na praia da Volta do Rio. Recomenda-se a captura de A. brasiliana com comprimento acima de 20 mm e a redução do esforço de captura nos meses de abril a setembro, período em que foi observada a maior densidade de juvenis, a fim de garantir a sustentabilidade desse estoque.Palavras-chave: Mariscagem; Recurso Pesqueiro; Regulamentação pesqueira. Universidade Federal de Goiás2022-10-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://revistas.ufg.br/vet/article/view/72781Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 23 (2022): Continuous publicationCiência Animal Brasileira / Brazilian Animal Science; v. 23 (2022): Publicação contínua1809-68911518-2797reponame:Ciência animal brasileira (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporenghttps://revistas.ufg.br/vet/article/view/72781/38944https://revistas.ufg.br/vet/article/view/72781/39060https://revistas.ufg.br/vet/article/view/72781/38945https://revistas.ufg.br/vet/article/view/72781/39061Copyright (c) 2022 Ciência Animal Brasileira / Brazilian Animal Sciencehttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessdo Nascimento, Natália Gomesde Vasconcelos Silva, Grasielle Daysede Vasconcelos Silva, Giselle Adayllana Maia, Rafaela Camargo2023-03-23T18:43:54Zoai:ojs.revistas.ufg.br:article/72781Revistahttps://revistas.ufg.br/vetPUBhttps://revistas.ufg.br/vet/oai||revistacab@gmail.com1809-68911518-2797opendoar:2024-05-21T19:56:31.614766Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
Aspects of the population dynamics of Anomalocardia brasiliana: subsidies for sustainable fishing in the west coast of Ceará, Brazil Aspectos da dinâmica populacional de Anomalocardia brasiliana: subsídios para a pesca sustentável no Litoral Oeste do Ceará, Brasil |
title |
Aspects of the population dynamics of Anomalocardia brasiliana: subsidies for sustainable fishing in the west coast of Ceará, Brazil |
spellingShingle |
Aspects of the population dynamics of Anomalocardia brasiliana: subsidies for sustainable fishing in the west coast of Ceará, Brazil do Nascimento, Natália Gomes |
title_short |
Aspects of the population dynamics of Anomalocardia brasiliana: subsidies for sustainable fishing in the west coast of Ceará, Brazil |
title_full |
Aspects of the population dynamics of Anomalocardia brasiliana: subsidies for sustainable fishing in the west coast of Ceará, Brazil |
title_fullStr |
Aspects of the population dynamics of Anomalocardia brasiliana: subsidies for sustainable fishing in the west coast of Ceará, Brazil |
title_full_unstemmed |
Aspects of the population dynamics of Anomalocardia brasiliana: subsidies for sustainable fishing in the west coast of Ceará, Brazil |
title_sort |
Aspects of the population dynamics of Anomalocardia brasiliana: subsidies for sustainable fishing in the west coast of Ceará, Brazil |
author |
do Nascimento, Natália Gomes |
author_facet |
do Nascimento, Natália Gomes de Vasconcelos Silva, Grasielle Dayse de Vasconcelos Silva, Giselle Adayllana Maia, Rafaela Camargo |
author_role |
author |
author2 |
de Vasconcelos Silva, Grasielle Dayse de Vasconcelos Silva, Giselle Adayllana Maia, Rafaela Camargo |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
do Nascimento, Natália Gomes de Vasconcelos Silva, Grasielle Dayse de Vasconcelos Silva, Giselle Adayllana Maia, Rafaela Camargo |
description |
Shellfish is an artisanal activity and family subsistence way of the coastal communities. Being the Anomalocardia brasiliana is one of the main mollusc species exploited. This paper aims to obtain information about the temporal distribution, growth, yield and the gonadosomatic index of the bivalve mollusc A. brasiliana in a natural bank in order to provide subsidies for the sustainable extraction of this resource. The present study was carried out in an area of the Acaraú River estuary, in Volta do Rio Beach, in Acaraú city. Samples were collected monthly during a year at spring low tide, using the random squares method. The temperature of the water, the sediment and the salinity were measured in situ. Sediment samples were collected for granulometric analysis. The specimens were quantified, measured and weighed individually. A total of 8,507 specimens of A. brasiliana were sampled, the highest density recorded was 2,534 individuals/m², those with the longest shell length were between 21 and 25 mm, the meat yield presented an average value of 12.42%. The means of the biometric variables of the individuals presented significant differences during the sample period. Frequency histograms evidenced the presence of adult individuals, in the process of sexual and juvenile differentiation, indicating a continuous reproductive cycle in the natural stock studied. These results will aid in the sustainable shellfish exercise on the Volta do Rio beach. It recommended the capture of A. brasiliana with length above 20 mm and the reduction of the capture effort in the months of April to September, when the highest density of juveniles was observed, in order to maintain the sustainability of this stock.Keywords: Shellfish; Fishing Resource; Fisheries Regulations. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-10-31 |
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://revistas.ufg.br/vet/article/view/72781 |
url |
https://revistas.ufg.br/vet/article/view/72781 |
dc.language.iso.fl_str_mv |
por eng |
language |
por eng |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/vet/article/view/72781/38944 https://revistas.ufg.br/vet/article/view/72781/39060 https://revistas.ufg.br/vet/article/view/72781/38945 https://revistas.ufg.br/vet/article/view/72781/39061 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2022 Ciência Animal Brasileira / Brazilian Animal Science http://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2022 Ciência Animal Brasileira / Brazilian Animal Science http://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 23 (2022): Continuous publication Ciência Animal Brasileira / Brazilian Animal Science; v. 23 (2022): Publicação contínua 1809-6891 1518-2797 reponame:Ciência animal brasileira (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Ciência animal brasileira (Online) |
collection |
Ciência animal brasileira (Online) |
repository.name.fl_str_mv |
Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
||revistacab@gmail.com |
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1799874790700351488 |