Oysters return to the Tagus estuary through an ecological model

Detalhes bibliográficos
Autor(a) principal: Bento, Vânia Sofia de Oliveira
Data de Publicação: 2008
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/1908
Resumo: Dissertation submitted to the Faculty of Sciences and Technology of New University of Lisbon for obtaining the degree of Master in Environmental Management Systems
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spelling Oysters return to the Tagus estuary through an ecological modelCrassostrea angulataBivalvesEcological modelTagus estuaryPortugalDissertation submitted to the Faculty of Sciences and Technology of New University of Lisbon for obtaining the degree of Master in Environmental Management SystemsAquaculture is an activity that has been increasing along the last years. Until the 1970’s Portugal and more specifically the Tagus estuary, was the major exporter of oysters in Europe. Factors like TBT and oysters gill disease had made that the shellfish aquaculture has never been again practised in Tagus estuary. According to that, this work intends to concept and to implement an ecological model that develops the oysters growth in order to them return to the estuary. To begin with, the model was calibrated with data from Database of 1980 and then validated with Database of 1982. The model results have shown a good correlation with measured data, so it was supposed as a good model. After that, it was simulated two different scenarios. The first one it was increased 30C in water temperature and in the second one it was changed the seeding day to the 90 day instead the 120 day. The results illustrate that in scenario I, the production of oysters decrease as well as the oyster individual weight and length, and in scenario II, however the oyster individual growth as decrease a little the oyster total harvest as increase. With these approaches, it will be possible to define the better conditions in order to achieve a good model that can be able to optimise the production of oyster in the Tagus estuary.FCT - UNLFerreira, J. GomesRUNBento, Vânia Sofia de Oliveira2009-04-20T09:53:00Z20082008-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10362/1908enginfo: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:RCAAP2024-03-11T03:32:04Zoai:run.unl.pt:10362/1908Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:14:55.614571Repositório 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 Oysters return to the Tagus estuary through an ecological model
title Oysters return to the Tagus estuary through an ecological model
spellingShingle Oysters return to the Tagus estuary through an ecological model
Bento, Vânia Sofia de Oliveira
Crassostrea angulata
Bivalves
Ecological model
Tagus estuary
Portugal
title_short Oysters return to the Tagus estuary through an ecological model
title_full Oysters return to the Tagus estuary through an ecological model
title_fullStr Oysters return to the Tagus estuary through an ecological model
title_full_unstemmed Oysters return to the Tagus estuary through an ecological model
title_sort Oysters return to the Tagus estuary through an ecological model
author Bento, Vânia Sofia de Oliveira
author_facet Bento, Vânia Sofia de Oliveira
author_role author
dc.contributor.none.fl_str_mv Ferreira, J. Gomes
RUN
dc.contributor.author.fl_str_mv Bento, Vânia Sofia de Oliveira
dc.subject.por.fl_str_mv Crassostrea angulata
Bivalves
Ecological model
Tagus estuary
Portugal
topic Crassostrea angulata
Bivalves
Ecological model
Tagus estuary
Portugal
description Dissertation submitted to the Faculty of Sciences and Technology of New University of Lisbon for obtaining the degree of Master in Environmental Management Systems
publishDate 2008
dc.date.none.fl_str_mv 2008
2008-01-01T00:00:00Z
2009-04-20T09:53:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/1908
url http://hdl.handle.net/10362/1908
dc.language.iso.fl_str_mv eng
language eng
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 FCT - UNL
publisher.none.fl_str_mv FCT - UNL
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
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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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