The dispersal capacity of Mollusca—a test on the South Azorean Seamount Chain

This study investigates the molluscan fauna of the South Azorean Seamount Chain (SASC), which comprises several seamounts culminating in 300–1600 m depth, separated by distances less than 200 km. Material was collected mainly by dredging and comprises mostly empty shells. A total of over 111,000 she...

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Autores: Caballero-Herrera, José Antonio, Hoffman, Leon, Freiwald, André, Gofas, Serge
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/340810
Acceso en línea:http://hdl.handle.net/10261/340810
Access Level:acceso abierto
Palabra clave:Larval development
Seamount
Deep sea
Marine biogeography
North Atlantic
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spelling The dispersal capacity of Mollusca—a test on the South Azorean Seamount ChainCaballero-Herrera, José AntonioHoffman, LeonFreiwald, AndréGofas, SergeLarval developmentSeamountDeep seaMarine biogeographyNorth AtlanticThis study investigates the molluscan fauna of the South Azorean Seamount Chain (SASC), which comprises several seamounts culminating in 300–1600 m depth, separated by distances less than 200 km. Material was collected mainly by dredging and comprises mostly empty shells. A total of over 111,000 shells representing at least 439 species (409 identified) was collected. Larval development was inferred from protoconch morphology, and the assemblage comprises species with planktotrophic larvae, with non-feeding planktonic larva, and with lecithotrophic larvae with direct development. The direct developers are more prevalent among species endemic to the SASC in the upper bathyal part (300–800 m) of the seamounts, whereas most planktotrophic species are shared with the Lusitanian seamounts and/or the European mainland. Nevertheless, there are notable exceptions to this trend, where species with non-planktotrophic larvae are also widespread, and a large proportion of the species with non-feeding planktonic larvae are shared with Eastern and/or Western Atlantic. Level of endemism of Mollusca is high within the SASC (22.5% overall, 35.8% considering only the interval < 800 m) and even higher (32.6% overall) when considering together the SASC and the Azores. The generic composition and large set of overlapping fauna suggest a strong relation to the temperate Eastern Atlantic, whereas only 19% of the species are shared with the Western Atlantic.Funding for open access charge was provided by Universidad de Málaga/CBUA. Seamount 2 expedition was funded by Institut National des Sciences de l’Univers (INSU) of the French CNRS, with additional funding from Muséum National d’Histoire Naturelle for travel of participants. German cruises were funded by the Deutsche Forschungsgemeinschaft (DFG).Peer reviewedSpringerUniversidad de MálagaInstitut national des sciences de l'Univers (France)Centre National de la Recherche Scientifique (France)Muséum national d'Histoire naturelle (France)German Research FoundationConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2023202320232023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/340810reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1007/s12526-023-01366-9Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3408102026-05-22T06:33:51Z
dc.title.none.fl_str_mv The dispersal capacity of Mollusca—a test on the South Azorean Seamount Chain
title The dispersal capacity of Mollusca—a test on the South Azorean Seamount Chain
spellingShingle The dispersal capacity of Mollusca—a test on the South Azorean Seamount Chain
Caballero-Herrera, José Antonio
Larval development
Seamount
Deep sea
Marine biogeography
North Atlantic
title_short The dispersal capacity of Mollusca—a test on the South Azorean Seamount Chain
title_full The dispersal capacity of Mollusca—a test on the South Azorean Seamount Chain
title_fullStr The dispersal capacity of Mollusca—a test on the South Azorean Seamount Chain
title_full_unstemmed The dispersal capacity of Mollusca—a test on the South Azorean Seamount Chain
title_sort The dispersal capacity of Mollusca—a test on the South Azorean Seamount Chain
dc.creator.none.fl_str_mv Caballero-Herrera, José Antonio
Hoffman, Leon
Freiwald, André
Gofas, Serge
author Caballero-Herrera, José Antonio
author_facet Caballero-Herrera, José Antonio
Hoffman, Leon
Freiwald, André
Gofas, Serge
author_role author
author2 Hoffman, Leon
Freiwald, André
Gofas, Serge
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidad de Málaga
Institut national des sciences de l'Univers (France)
Centre National de la Recherche Scientifique (France)
Muséum national d'Histoire naturelle (France)
German Research Foundation
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Larval development
Seamount
Deep sea
Marine biogeography
North Atlantic
topic Larval development
Seamount
Deep sea
Marine biogeography
North Atlantic
description This study investigates the molluscan fauna of the South Azorean Seamount Chain (SASC), which comprises several seamounts culminating in 300–1600 m depth, separated by distances less than 200 km. Material was collected mainly by dredging and comprises mostly empty shells. A total of over 111,000 shells representing at least 439 species (409 identified) was collected. Larval development was inferred from protoconch morphology, and the assemblage comprises species with planktotrophic larvae, with non-feeding planktonic larva, and with lecithotrophic larvae with direct development. The direct developers are more prevalent among species endemic to the SASC in the upper bathyal part (300–800 m) of the seamounts, whereas most planktotrophic species are shared with the Lusitanian seamounts and/or the European mainland. Nevertheless, there are notable exceptions to this trend, where species with non-planktotrophic larvae are also widespread, and a large proportion of the species with non-feeding planktonic larvae are shared with Eastern and/or Western Atlantic. Level of endemism of Mollusca is high within the SASC (22.5% overall, 35.8% considering only the interval < 800 m) and even higher (32.6% overall) when considering together the SASC and the Azores. The generic composition and large set of overlapping fauna suggest a strong relation to the temperate Eastern Atlantic, whereas only 19% of the species are shared with the Western Atlantic.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/340810
url http://hdl.handle.net/10261/340810
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1007/s12526-023-01366-9
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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