Bio-Economic Modelling of Northern Atlantic Bluefin Tuna
Autor(a) principal: | |
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Data de Publicação: | 1998 |
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/10362/89031 |
Resumo: | This paper presents a discrete-time bio-economic model of Northern Atlantic bluefin tuna. The bluefin tuna is caught by several gears, targeting different age classes in different areas. To properly capture the dynamics of this species, an age-structured and multi-gear model was used. The model captures the dynamic interrelations between gears. In this way, the migrations are implicitly modelled, as gears can be associated with age classes and locations. Three cases are simulated and analysed: open-access, total allowable catch (TAC) and constant fishing effort. Two alternative links between the economic and biological parts of the model were used and it is shown that the simulation results are very sensitive io the functional form of the production function. For both functional relations there are substantial gains to be had by departing from a situation of open access to a regulated one. |
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Bio-Economic Modelling of Northern Atlantic Bluefin TunaBio-economic applied modelBluefin tunaThis paper presents a discrete-time bio-economic model of Northern Atlantic bluefin tuna. The bluefin tuna is caught by several gears, targeting different age classes in different areas. To properly capture the dynamics of this species, an age-structured and multi-gear model was used. The model captures the dynamic interrelations between gears. In this way, the migrations are implicitly modelled, as gears can be associated with age classes and locations. Three cases are simulated and analysed: open-access, total allowable catch (TAC) and constant fishing effort. Two alternative links between the economic and biological parts of the model were used and it is shown that the simulation results are very sensitive io the functional form of the production function. For both functional relations there are substantial gains to be had by departing from a situation of open access to a regulated one.Nova SBERUNPintassilgo, PedroBrasao, AnaCosta-Duarte, Maria Clara2019-12-02T14:26:02Z1998-101998-10-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/89031engPintassilgo, Pedro, Brasão, Ana and Costa-Duarte, Clara, Bio-Economic Modelling of Northern Atlantic Bluefin Tuna (October, 1998). FEUNL Working Paper Series No. 331info: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:RCAAP2024-03-11T04:39:32Zoai:run.unl.pt:10362/89031Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:36:54.965938Repositório 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 |
Bio-Economic Modelling of Northern Atlantic Bluefin Tuna |
title |
Bio-Economic Modelling of Northern Atlantic Bluefin Tuna |
spellingShingle |
Bio-Economic Modelling of Northern Atlantic Bluefin Tuna Pintassilgo, Pedro Bio-economic applied model Bluefin tuna |
title_short |
Bio-Economic Modelling of Northern Atlantic Bluefin Tuna |
title_full |
Bio-Economic Modelling of Northern Atlantic Bluefin Tuna |
title_fullStr |
Bio-Economic Modelling of Northern Atlantic Bluefin Tuna |
title_full_unstemmed |
Bio-Economic Modelling of Northern Atlantic Bluefin Tuna |
title_sort |
Bio-Economic Modelling of Northern Atlantic Bluefin Tuna |
author |
Pintassilgo, Pedro |
author_facet |
Pintassilgo, Pedro Brasao, Ana Costa-Duarte, Maria Clara |
author_role |
author |
author2 |
Brasao, Ana Costa-Duarte, Maria Clara |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
RUN |
dc.contributor.author.fl_str_mv |
Pintassilgo, Pedro Brasao, Ana Costa-Duarte, Maria Clara |
dc.subject.por.fl_str_mv |
Bio-economic applied model Bluefin tuna |
topic |
Bio-economic applied model Bluefin tuna |
description |
This paper presents a discrete-time bio-economic model of Northern Atlantic bluefin tuna. The bluefin tuna is caught by several gears, targeting different age classes in different areas. To properly capture the dynamics of this species, an age-structured and multi-gear model was used. The model captures the dynamic interrelations between gears. In this way, the migrations are implicitly modelled, as gears can be associated with age classes and locations. Three cases are simulated and analysed: open-access, total allowable catch (TAC) and constant fishing effort. Two alternative links between the economic and biological parts of the model were used and it is shown that the simulation results are very sensitive io the functional form of the production function. For both functional relations there are substantial gains to be had by departing from a situation of open access to a regulated one. |
publishDate |
1998 |
dc.date.none.fl_str_mv |
1998-10 1998-10-01T00:00:00Z 2019-12-02T14:26:02Z |
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/10362/89031 |
url |
http://hdl.handle.net/10362/89031 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pintassilgo, Pedro, Brasão, Ana and Costa-Duarte, Clara, Bio-Economic Modelling of Northern Atlantic Bluefin Tuna (October, 1998). FEUNL Working Paper Series No. 331 |
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 |
Nova SBE |
publisher.none.fl_str_mv |
Nova SBE |
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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1799137986294579200 |