Bio-Economic Modelling of Northern Atlantic Bluefin Tuna: Sensitivity and Retrospective Analysis
Autor(a) principal: | |
---|---|
Data de Publicação: | 1999 |
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/10362/89143 |
Resumo: | In the present paper, a sensitivity and retrospective analysis is developed for the Bioeconomic Model of Northern Atlantic Bluefin tuna. A sensitivity analysis of some of the parameters of the model is undertaken for the TAC, the constant effort and the open access cases. Except for the latter, the impact on the optimal value of the variables is examined. In the open access scenario, the analysis is focused on the total net present value of the fisheries and on the moment of total depletion of the stock. The results show that the model is more sensitive to the values of catch-stock elasticity and to the cost estimates. For the specific case of the open access, the change in BFT prices and the values of the market adjustment parameter may also cause a significant impact on the relevant variables. A retrospective analysis is conducted in order to evaluate the forecasting potential of the model. It can be concluded that the model generally forecasts the trends. |
id |
RCAP_ad280a370c00114a1815254ea798b7f6 |
---|---|
oai_identifier_str |
oai:run.unl.pt:10362/89143 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Bio-Economic Modelling of Northern Atlantic Bluefin Tuna: Sensitivity and Retrospective AnalysisIn the present paper, a sensitivity and retrospective analysis is developed for the Bioeconomic Model of Northern Atlantic Bluefin tuna. A sensitivity analysis of some of the parameters of the model is undertaken for the TAC, the constant effort and the open access cases. Except for the latter, the impact on the optimal value of the variables is examined. In the open access scenario, the analysis is focused on the total net present value of the fisheries and on the moment of total depletion of the stock. The results show that the model is more sensitive to the values of catch-stock elasticity and to the cost estimates. For the specific case of the open access, the change in BFT prices and the values of the market adjustment parameter may also cause a significant impact on the relevant variables. A retrospective analysis is conducted in order to evaluate the forecasting potential of the model. It can be concluded that the model generally forecasts the trends.Nova SBERUNBrasao, AnaPintassilgo, PedroCosta-Duarte, Maria Clara2019-12-03T09:56:44Z1999-031999-03-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/89143engBrasão, Ana, Pintassilgo, Pedro Costa Duarte, Clara, Bio-Economic Modelling of Northern Atlantic Bluefin Tuna: Sensitivity and Retrospective Analysis (March, 1999). FEUNL Working Paper Series No. 347info: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:RCAAP2024-03-11T04:39:37Zoai:run.unl.pt:10362/89143Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:36:56.115537Repositório 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: Sensitivity and Retrospective Analysis |
title |
Bio-Economic Modelling of Northern Atlantic Bluefin Tuna: Sensitivity and Retrospective Analysis |
spellingShingle |
Bio-Economic Modelling of Northern Atlantic Bluefin Tuna: Sensitivity and Retrospective Analysis Brasao, Ana |
title_short |
Bio-Economic Modelling of Northern Atlantic Bluefin Tuna: Sensitivity and Retrospective Analysis |
title_full |
Bio-Economic Modelling of Northern Atlantic Bluefin Tuna: Sensitivity and Retrospective Analysis |
title_fullStr |
Bio-Economic Modelling of Northern Atlantic Bluefin Tuna: Sensitivity and Retrospective Analysis |
title_full_unstemmed |
Bio-Economic Modelling of Northern Atlantic Bluefin Tuna: Sensitivity and Retrospective Analysis |
title_sort |
Bio-Economic Modelling of Northern Atlantic Bluefin Tuna: Sensitivity and Retrospective Analysis |
author |
Brasao, Ana |
author_facet |
Brasao, Ana Pintassilgo, Pedro Costa-Duarte, Maria Clara |
author_role |
author |
author2 |
Pintassilgo, Pedro Costa-Duarte, Maria Clara |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
RUN |
dc.contributor.author.fl_str_mv |
Brasao, Ana Pintassilgo, Pedro Costa-Duarte, Maria Clara |
description |
In the present paper, a sensitivity and retrospective analysis is developed for the Bioeconomic Model of Northern Atlantic Bluefin tuna. A sensitivity analysis of some of the parameters of the model is undertaken for the TAC, the constant effort and the open access cases. Except for the latter, the impact on the optimal value of the variables is examined. In the open access scenario, the analysis is focused on the total net present value of the fisheries and on the moment of total depletion of the stock. The results show that the model is more sensitive to the values of catch-stock elasticity and to the cost estimates. For the specific case of the open access, the change in BFT prices and the values of the market adjustment parameter may also cause a significant impact on the relevant variables. A retrospective analysis is conducted in order to evaluate the forecasting potential of the model. It can be concluded that the model generally forecasts the trends. |
publishDate |
1999 |
dc.date.none.fl_str_mv |
1999-03 1999-03-01T00:00:00Z 2019-12-03T09:56:44Z |
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/10362/89143 |
url |
http://hdl.handle.net/10362/89143 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Brasão, Ana, Pintassilgo, Pedro Costa Duarte, Clara, Bio-Economic Modelling of Northern Atlantic Bluefin Tuna: Sensitivity and Retrospective Analysis (March, 1999). FEUNL Working Paper Series No. 347 |
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 |
|
_version_ |
1799137986776924160 |