Standardized CPUE and size distribution of the shortfin mako shark in the portuguese pelagic longline fishery in the Atlantic
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/12613 |
Resumo: | This document provides fishery indicators for the shortfin mako shark captured by the Portuguese pelagic longline fishery in the Atlantic (standardized CPUEs and size distribution). The analysis was based on data collected from fishery observers, port sampling and skippers logbooks (self sampling), between 1995 and 2015. The mean sizes were compared between years, seasons (quarters), stocks (north and south) and sampling areas. The CPUEs were analyzed for the North Atlantic and compared between years, and were standardized with Tweedie and Delta GLM approaches. In general, there was a large variability in the nominal CPUE trends in the North Atlantic, and the final standardized series was flatter than the nominal. For the size distribution there were no major trends in the time series, with the sizes tending to be larger in the South Atlantic. The data presented in this document can be considered for use in the upcoming 2017 shortfin mako stock assessment, specifically the standardized CPUE for the North Atlantic and the size distribution for both hemispheres. |
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Standardized CPUE and size distribution of the shortfin mako shark in the portuguese pelagic longline fishery in the AtlanticBycatchFishery indicatorsNominal CPUEPelagic longline fisherySharksSize distributionThis document provides fishery indicators for the shortfin mako shark captured by the Portuguese pelagic longline fishery in the Atlantic (standardized CPUEs and size distribution). The analysis was based on data collected from fishery observers, port sampling and skippers logbooks (self sampling), between 1995 and 2015. The mean sizes were compared between years, seasons (quarters), stocks (north and south) and sampling areas. The CPUEs were analyzed for the North Atlantic and compared between years, and were standardized with Tweedie and Delta GLM approaches. In general, there was a large variability in the nominal CPUE trends in the North Atlantic, and the final standardized series was flatter than the nominal. For the size distribution there were no major trends in the time series, with the sizes tending to be larger in the South Atlantic. The data presented in this document can be considered for use in the upcoming 2017 shortfin mako stock assessment, specifically the standardized CPUE for the North Atlantic and the size distribution for both hemispheres.ICCATSapientiaCoelho, RuiRosa, DanielaLino, Pedro2019-06-06T12:51:39Z20172017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/12613engCoelho, R., Rosa, D., Lino, P. G., 2017. Standardized CPUE and size distribution of the shortfin mako shark in the portuguese pelagic longline fishery in the Atlantic. Collect. Vol. Sci. Pap. ICCAT, 74(4): 1579-16001021-5212info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:24:36Zoai:sapientia.ualg.pt:10400.1/12613Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:03:56.390432Repositório 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 |
Standardized CPUE and size distribution of the shortfin mako shark in the portuguese pelagic longline fishery in the Atlantic |
title |
Standardized CPUE and size distribution of the shortfin mako shark in the portuguese pelagic longline fishery in the Atlantic |
spellingShingle |
Standardized CPUE and size distribution of the shortfin mako shark in the portuguese pelagic longline fishery in the Atlantic Coelho, Rui Bycatch Fishery indicators Nominal CPUE Pelagic longline fishery Sharks Size distribution |
title_short |
Standardized CPUE and size distribution of the shortfin mako shark in the portuguese pelagic longline fishery in the Atlantic |
title_full |
Standardized CPUE and size distribution of the shortfin mako shark in the portuguese pelagic longline fishery in the Atlantic |
title_fullStr |
Standardized CPUE and size distribution of the shortfin mako shark in the portuguese pelagic longline fishery in the Atlantic |
title_full_unstemmed |
Standardized CPUE and size distribution of the shortfin mako shark in the portuguese pelagic longline fishery in the Atlantic |
title_sort |
Standardized CPUE and size distribution of the shortfin mako shark in the portuguese pelagic longline fishery in the Atlantic |
author |
Coelho, Rui |
author_facet |
Coelho, Rui Rosa, Daniela Lino, Pedro |
author_role |
author |
author2 |
Rosa, Daniela Lino, Pedro |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Coelho, Rui Rosa, Daniela Lino, Pedro |
dc.subject.por.fl_str_mv |
Bycatch Fishery indicators Nominal CPUE Pelagic longline fishery Sharks Size distribution |
topic |
Bycatch Fishery indicators Nominal CPUE Pelagic longline fishery Sharks Size distribution |
description |
This document provides fishery indicators for the shortfin mako shark captured by the Portuguese pelagic longline fishery in the Atlantic (standardized CPUEs and size distribution). The analysis was based on data collected from fishery observers, port sampling and skippers logbooks (self sampling), between 1995 and 2015. The mean sizes were compared between years, seasons (quarters), stocks (north and south) and sampling areas. The CPUEs were analyzed for the North Atlantic and compared between years, and were standardized with Tweedie and Delta GLM approaches. In general, there was a large variability in the nominal CPUE trends in the North Atlantic, and the final standardized series was flatter than the nominal. For the size distribution there were no major trends in the time series, with the sizes tending to be larger in the South Atlantic. The data presented in this document can be considered for use in the upcoming 2017 shortfin mako stock assessment, specifically the standardized CPUE for the North Atlantic and the size distribution for both hemispheres. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 2017-01-01T00:00:00Z 2019-06-06T12:51:39Z |
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://hdl.handle.net/10400.1/12613 |
url |
http://hdl.handle.net/10400.1/12613 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Coelho, R., Rosa, D., Lino, P. G., 2017. Standardized CPUE and size distribution of the shortfin mako shark in the portuguese pelagic longline fishery in the Atlantic. Collect. Vol. Sci. Pap. ICCAT, 74(4): 1579-1600 1021-5212 |
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 |
ICCAT |
publisher.none.fl_str_mv |
ICCAT |
dc.source.none.fl_str_mv |
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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1799133273857720320 |