Genetic conectivity patterns in Holothuria Mammata considering different spatial scales

Detalhes bibliográficos
Autor(a) principal: Henriques, Filipe Freitas
Data de Publicação: 2015
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.1/8001
Resumo: Dissertação de Mestrado, Biologia Marinha, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2015
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spelling Genetic conectivity patterns in Holothuria Mammata considering different spatial scalesHolothuria mammataFishery managementMorphometryGenetic structureOceanographic patternsMicrosatellitesMorphometryDomínio/Área Científica::Ciências Naturais::Ciências BiológicasDissertação de Mestrado, Biologia Marinha, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2015As a consequence of the world population growth, the demand for sea food resources is increasing. Consequently, worldwide fisheries transition from depleted finfish resources to alternative invertebrates species created a massive industry. Sea cucumber stocks have been overfished in Indo-Pacific Oceans as result of lack of effective management, non-regulated fisheries and an increasing demand from Oriental countries. The “beche de mer” demands have induced expansion of their fisheries worldwide and have resulted in catches of new target species from the Mediterranean Sea and NE Atlantic Ocean. With high commercial value and fragile life-history traits, sea cucumbers are particularly vulnerable to commercial fisheries, especially when there are no scientific knowledge to support their effective management. This study aims to fill in some of the gap in scientific data about sea cucumber populations, namely Holothuria mammata. It was assessed the genetic diversity and structure, connectivity and effective population size with novel polymorphic molecular markers (microsatellites). This analysis was done in several spatial scales and considering oceanographic patterns. Some morphometric traits were also analysed, such as the distribution of length and weight classes. The results showed that Holothuria mammata has globally high genetic diversity, higher genetic connectivity between Atlantic populations and genetic differentiation between Atlantic/Mediterranean and eastern/western Mediterranean basins. Effective population sizes were smaller in the Atlantic, showing some mutationdrift disequilibrium. Oceanographic patterns were strongly correlated with the genetic differentiation patterns. Atlantic populations presented bigger individuals (i.e. length and weight) than Mediterranean ones, clearly associated with environmental conditions, and ecology features. Biometric data and genetic analysis allowed us to establish the three potential stocks inhabiting the geographic area and improve the biological knowledge of this new target species. This information will be useful to suggest the first recommendations to its effective fishery management, and future comparisons in order to assess the fishery effects either at genetic and/or morphometric level.González-Wangüemert, MercedesSerrão, EsterSapientiaHenriques, Filipe Freitas2016-04-14T15:37:57Z2015-05-2520152015-05-25T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.1/8001TID:201220261enginfo: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:RCAAP2023-07-24T10:19:11Zoai:sapientia.ualg.pt:10400.1/8001Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:00:13.754405Repositório 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 Genetic conectivity patterns in Holothuria Mammata considering different spatial scales
title Genetic conectivity patterns in Holothuria Mammata considering different spatial scales
spellingShingle Genetic conectivity patterns in Holothuria Mammata considering different spatial scales
Henriques, Filipe Freitas
Holothuria mammata
Fishery management
Morphometry
Genetic structure
Oceanographic patterns
Microsatellites
Morphometry
Domínio/Área Científica::Ciências Naturais::Ciências Biológicas
title_short Genetic conectivity patterns in Holothuria Mammata considering different spatial scales
title_full Genetic conectivity patterns in Holothuria Mammata considering different spatial scales
title_fullStr Genetic conectivity patterns in Holothuria Mammata considering different spatial scales
title_full_unstemmed Genetic conectivity patterns in Holothuria Mammata considering different spatial scales
title_sort Genetic conectivity patterns in Holothuria Mammata considering different spatial scales
author Henriques, Filipe Freitas
author_facet Henriques, Filipe Freitas
author_role author
dc.contributor.none.fl_str_mv González-Wangüemert, Mercedes
Serrão, Ester
Sapientia
dc.contributor.author.fl_str_mv Henriques, Filipe Freitas
dc.subject.por.fl_str_mv Holothuria mammata
Fishery management
Morphometry
Genetic structure
Oceanographic patterns
Microsatellites
Morphometry
Domínio/Área Científica::Ciências Naturais::Ciências Biológicas
topic Holothuria mammata
Fishery management
Morphometry
Genetic structure
Oceanographic patterns
Microsatellites
Morphometry
Domínio/Área Científica::Ciências Naturais::Ciências Biológicas
description Dissertação de Mestrado, Biologia Marinha, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2015
publishDate 2015
dc.date.none.fl_str_mv 2015-05-25
2015
2015-05-25T00:00:00Z
2016-04-14T15:37:57Z
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/10400.1/8001
TID:201220261
url http://hdl.handle.net/10400.1/8001
identifier_str_mv TID:201220261
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.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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