Geographical variation in shell shape of the pod razor shell Ensis siliqua (Bivalvia: Pharidae)
Autor(a) principal: | |
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Data de Publicação: | 2013 |
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/10773/24163 |
Resumo: | The present study assessed the existence of variation in the shell shape of the pod razor shell (Ensis siliqua) throughout its distributional range in the north- eastern Atlantic. Shells of E. siliqua caught at seven collecting sites (three in Portugal, three in Spain and one in Ireland) were studied by geometric morphometric methods, using both landmark- and contour-based methods. Both approaches (landmarks inside the valves and shell outline) discriminated the shells from Aveiro (centre of Portugal) and Strangford Lough (Ireland) from those caught in the nearby localities (remaining Portuguese and Spanish sites,maximum distance of 550 km by sea). Landmark analysis revealed that shells from Aveiro were more similar to shells from Ireland (*1,500 km far away). Contour anal- ysis revealed that shells from Aveiro had a shape with a comparatively larger height-to-width ratio, whereas shells from Ireland showed a slightly more curved outline than in the remaining sites. Landmark- and contour-based methods provided coherent complementary information, confirming the usefulness of geometric morphometric analyses for discerning differences in shell shape among populations of E. siliqua. A brief review of previous applications of geometric morphometric methods to modern bivalve spe- cies is also provided. |
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Geographical variation in shell shape of the pod razor shell Ensis siliqua (Bivalvia: Pharidae)Ensis siliquaGeometric morphometricsPod razor shellShell shapeThe present study assessed the existence of variation in the shell shape of the pod razor shell (Ensis siliqua) throughout its distributional range in the north- eastern Atlantic. Shells of E. siliqua caught at seven collecting sites (three in Portugal, three in Spain and one in Ireland) were studied by geometric morphometric methods, using both landmark- and contour-based methods. Both approaches (landmarks inside the valves and shell outline) discriminated the shells from Aveiro (centre of Portugal) and Strangford Lough (Ireland) from those caught in the nearby localities (remaining Portuguese and Spanish sites,maximum distance of 550 km by sea). Landmark analysis revealed that shells from Aveiro were more similar to shells from Ireland (*1,500 km far away). Contour anal- ysis revealed that shells from Aveiro had a shape with a comparatively larger height-to-width ratio, whereas shells from Ireland showed a slightly more curved outline than in the remaining sites. Landmark- and contour-based methods provided coherent complementary information, confirming the usefulness of geometric morphometric analyses for discerning differences in shell shape among populations of E. siliqua. A brief review of previous applications of geometric morphometric methods to modern bivalve spe- cies is also provided.Springer Verlag2018-09-26T14:41:41Z2013-01-01T00:00:00Z2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/24163eng1438-387X10.1007/s10152-012-0303-6Rufino, Marta M.Vasconcelos, PauloPereira, FábioFernández-Tajes, JuanDarriba, SusanaMéndez, JosefinaGaspar, Miguel B.info: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:RCAAP2023-07-17T03:56:36ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Geographical variation in shell shape of the pod razor shell Ensis siliqua (Bivalvia: Pharidae) |
title |
Geographical variation in shell shape of the pod razor shell Ensis siliqua (Bivalvia: Pharidae) |
spellingShingle |
Geographical variation in shell shape of the pod razor shell Ensis siliqua (Bivalvia: Pharidae) Rufino, Marta M. Ensis siliqua Geometric morphometrics Pod razor shell Shell shape |
title_short |
Geographical variation in shell shape of the pod razor shell Ensis siliqua (Bivalvia: Pharidae) |
title_full |
Geographical variation in shell shape of the pod razor shell Ensis siliqua (Bivalvia: Pharidae) |
title_fullStr |
Geographical variation in shell shape of the pod razor shell Ensis siliqua (Bivalvia: Pharidae) |
title_full_unstemmed |
Geographical variation in shell shape of the pod razor shell Ensis siliqua (Bivalvia: Pharidae) |
title_sort |
Geographical variation in shell shape of the pod razor shell Ensis siliqua (Bivalvia: Pharidae) |
author |
Rufino, Marta M. |
author_facet |
Rufino, Marta M. Vasconcelos, Paulo Pereira, Fábio Fernández-Tajes, Juan Darriba, Susana Méndez, Josefina Gaspar, Miguel B. |
author_role |
author |
author2 |
Vasconcelos, Paulo Pereira, Fábio Fernández-Tajes, Juan Darriba, Susana Méndez, Josefina Gaspar, Miguel B. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Rufino, Marta M. Vasconcelos, Paulo Pereira, Fábio Fernández-Tajes, Juan Darriba, Susana Méndez, Josefina Gaspar, Miguel B. |
dc.subject.por.fl_str_mv |
Ensis siliqua Geometric morphometrics Pod razor shell Shell shape |
topic |
Ensis siliqua Geometric morphometrics Pod razor shell Shell shape |
description |
The present study assessed the existence of variation in the shell shape of the pod razor shell (Ensis siliqua) throughout its distributional range in the north- eastern Atlantic. Shells of E. siliqua caught at seven collecting sites (three in Portugal, three in Spain and one in Ireland) were studied by geometric morphometric methods, using both landmark- and contour-based methods. Both approaches (landmarks inside the valves and shell outline) discriminated the shells from Aveiro (centre of Portugal) and Strangford Lough (Ireland) from those caught in the nearby localities (remaining Portuguese and Spanish sites,maximum distance of 550 km by sea). Landmark analysis revealed that shells from Aveiro were more similar to shells from Ireland (*1,500 km far away). Contour anal- ysis revealed that shells from Aveiro had a shape with a comparatively larger height-to-width ratio, whereas shells from Ireland showed a slightly more curved outline than in the remaining sites. Landmark- and contour-based methods provided coherent complementary information, confirming the usefulness of geometric morphometric analyses for discerning differences in shell shape among populations of E. siliqua. A brief review of previous applications of geometric morphometric methods to modern bivalve spe- cies is also provided. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-01-01T00:00:00Z 2013 2018-09-26T14:41:41Z |
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/10773/24163 |
url |
http://hdl.handle.net/10773/24163 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1438-387X 10.1007/s10152-012-0303-6 |
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 |
Springer Verlag |
publisher.none.fl_str_mv |
Springer Verlag |
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 |
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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) |
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1777303542454812672 |