A time series analysis of Prochilodus nigricans landings caught by small-scale fisheries in the lower stretch of the Amazon River
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Biology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842013000100007 |
Resumo: | We developed a time series analysis using data on curimatã (Prochilodus nigricans), which landed in Santarém, a small city located on the right banks of the Amazon River. A 10-year record of monthly average catches per day of P. nigricans was analyzed using forecasting procedures in the open-source software GRETL 1.7.8. We established two models from the identifications made with the correlograms of hyperparametrization and seasonal differences. The autoregressive terms of the model reach three years, indicating that individuals of the species are being caught around the age of three. This may indicate that the curimatãs in the landings at Santarém from 1992 to 2002 were more than two years old, potentially a sign of a lack of fishing pressure on the lower age groups. |
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Brazilian Journal of Biology |
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A time series analysis of Prochilodus nigricans landings caught by small-scale fisheries in the lower stretch of the Amazon Riverfish landingscurimatãsmall-scale fisheryRio AmazonasWe developed a time series analysis using data on curimatã (Prochilodus nigricans), which landed in Santarém, a small city located on the right banks of the Amazon River. A 10-year record of monthly average catches per day of P. nigricans was analyzed using forecasting procedures in the open-source software GRETL 1.7.8. We established two models from the identifications made with the correlograms of hyperparametrization and seasonal differences. The autoregressive terms of the model reach three years, indicating that individuals of the species are being caught around the age of three. This may indicate that the curimatãs in the landings at Santarém from 1992 to 2002 were more than two years old, potentially a sign of a lack of fishing pressure on the lower age groups.Instituto Internacional de Ecologia2013-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842013000100007Brazilian Journal of Biology v.73 n.1 2013reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/S1519-69842013000100007info:eu-repo/semantics/openAccessSantana,IF.Freitas,CEC.eng2013-04-18T00:00:00Zoai:scielo:S1519-69842013000100007Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2013-04-18T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false |
dc.title.none.fl_str_mv |
A time series analysis of Prochilodus nigricans landings caught by small-scale fisheries in the lower stretch of the Amazon River |
title |
A time series analysis of Prochilodus nigricans landings caught by small-scale fisheries in the lower stretch of the Amazon River |
spellingShingle |
A time series analysis of Prochilodus nigricans landings caught by small-scale fisheries in the lower stretch of the Amazon River Santana,IF. fish landings curimatã small-scale fishery Rio Amazonas |
title_short |
A time series analysis of Prochilodus nigricans landings caught by small-scale fisheries in the lower stretch of the Amazon River |
title_full |
A time series analysis of Prochilodus nigricans landings caught by small-scale fisheries in the lower stretch of the Amazon River |
title_fullStr |
A time series analysis of Prochilodus nigricans landings caught by small-scale fisheries in the lower stretch of the Amazon River |
title_full_unstemmed |
A time series analysis of Prochilodus nigricans landings caught by small-scale fisheries in the lower stretch of the Amazon River |
title_sort |
A time series analysis of Prochilodus nigricans landings caught by small-scale fisheries in the lower stretch of the Amazon River |
author |
Santana,IF. |
author_facet |
Santana,IF. Freitas,CEC. |
author_role |
author |
author2 |
Freitas,CEC. |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Santana,IF. Freitas,CEC. |
dc.subject.por.fl_str_mv |
fish landings curimatã small-scale fishery Rio Amazonas |
topic |
fish landings curimatã small-scale fishery Rio Amazonas |
description |
We developed a time series analysis using data on curimatã (Prochilodus nigricans), which landed in Santarém, a small city located on the right banks of the Amazon River. A 10-year record of monthly average catches per day of P. nigricans was analyzed using forecasting procedures in the open-source software GRETL 1.7.8. We established two models from the identifications made with the correlograms of hyperparametrization and seasonal differences. The autoregressive terms of the model reach three years, indicating that individuals of the species are being caught around the age of three. This may indicate that the curimatãs in the landings at Santarém from 1992 to 2002 were more than two years old, potentially a sign of a lack of fishing pressure on the lower age groups. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-02-01 |
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=S1519-69842013000100007 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842013000100007 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1519-69842013000100007 |
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 |
Instituto Internacional de Ecologia |
publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
dc.source.none.fl_str_mv |
Brazilian Journal of Biology v.73 n.1 2013 reponame:Brazilian Journal of Biology instname:Instituto Internacional de Ecologia (IIE) instacron:IIE |
instname_str |
Instituto Internacional de Ecologia (IIE) |
instacron_str |
IIE |
institution |
IIE |
reponame_str |
Brazilian Journal of Biology |
collection |
Brazilian Journal of Biology |
repository.name.fl_str_mv |
Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE) |
repository.mail.fl_str_mv |
bjb@bjb.com.br||bjb@bjb.com.br |
_version_ |
1752129879669735424 |