Insights Into Insular Isolation of the Bull Shark, Carcharhinus leucas (Müller and Henle, 1839), in Fijian Waters

© 2020 Glaus, Appleyard, Stockwell, Brunnschweiler, Shivji, Clua, Marie and Rico.

Detalhes bibliográficos
Autores: Glaus, Kerstin B. J., Appleyard, Sharon A., Stockwell, Brian L., Brunnschweiler, Juerg M., Shivji, Mahmood, Marie, Amandine D., Rico, Ciro
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/236377
Acesso em linha:http://hdl.handle.net/10261/236377
Access Level:acceso abierto
Palavra-chave:Island populations
Connectivity
Coastal sharks
Shark reef marine reserve
Population genomics
Dispersal barriers
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spelling Insights Into Insular Isolation of the Bull Shark, Carcharhinus leucas (Müller and Henle, 1839), in Fijian WatersGlaus, Kerstin B. J.Appleyard, Sharon A.Stockwell, Brian L.Brunnschweiler, Juerg M.Shivji, MahmoodMarie, Amandine D.Rico, CiroIsland populationsConnectivityCoastal sharksShark reef marine reservePopulation genomicsDispersal barriers© 2020 Glaus, Appleyard, Stockwell, Brunnschweiler, Shivji, Clua, Marie and Rico.The bull shark (Carcharhinus leucas) is a large, mobile, circumglobally distributed high trophic level predator that inhabits a variety of remote islands and continental coastal habitats, including freshwater environments. Here, we hypothesize that the barriers to dispersal created by large oceanic expanses and deep-water trenches result in a heterogeneous distribution of the neutral genetic diversity between island bull shark populations compared to populations sampled in continental locations connected through continuous coastlines of continental shelves. We analyzed 1,494 high-quality neutral single nucleotide polymorphism (SNP) markers in 215 individual bull sharks from widespread locations across the Indian and Pacific Oceans (South Africa, Indonesia, Western Australia, Papua New Guinea, eastern Australia, New Caledonia, and Fiji). Genomic analyses revealed partitioning between remote insular and continental populations, with the Fiji population being genetically different from all other locations sampled (FST = 0.034–0.044, P < 0.001), and New Caledonia showing marginal isolation (FST = 0.016–0.024, P < 0.001; albeit based on a small sample size) from most sampled sites. Discriminant analysis of principal components (DAPC) identified samples from Fiji as a distinct cluster with all other sites clustering together. Genetic structure analyses (Admixture, fastStructure and AssignPOP) further supported the genetic isolation of bull sharks from Fiji, with the analyses in agreement. The observed differentiation in bull sharks from Fiji makes this site of special interest, as it indicates a lack of migration through dispersal across deep-water trenches and large ocean expanses.The project was supported by the Ausbildungs-Stiftung fuer den Kanton Schwyz und die Bezirke See und Gaster (Kanton St. Gallen, Switzerland), the Shark Foundation Switzerland and Pacific Scholarship for Excellence in Research & Innovation of the University of the South Pacific. Grant SRT/F1006-R1001-71502-663 was given to CR.Frontiers MediaAusbildungs-Stiftung für den Kanton Schwyz und die Bezirke See und GasterShark FoundationThe University of the South Pacific (Fiyi)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2021202120202021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/236377reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.3389/fmars.2020.586015Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2363772026-05-22T06:33:51Z
dc.title.none.fl_str_mv Insights Into Insular Isolation of the Bull Shark, Carcharhinus leucas (Müller and Henle, 1839), in Fijian Waters
title Insights Into Insular Isolation of the Bull Shark, Carcharhinus leucas (Müller and Henle, 1839), in Fijian Waters
spellingShingle Insights Into Insular Isolation of the Bull Shark, Carcharhinus leucas (Müller and Henle, 1839), in Fijian Waters
Glaus, Kerstin B. J.
Island populations
Connectivity
Coastal sharks
Shark reef marine reserve
Population genomics
Dispersal barriers
title_short Insights Into Insular Isolation of the Bull Shark, Carcharhinus leucas (Müller and Henle, 1839), in Fijian Waters
title_full Insights Into Insular Isolation of the Bull Shark, Carcharhinus leucas (Müller and Henle, 1839), in Fijian Waters
title_fullStr Insights Into Insular Isolation of the Bull Shark, Carcharhinus leucas (Müller and Henle, 1839), in Fijian Waters
title_full_unstemmed Insights Into Insular Isolation of the Bull Shark, Carcharhinus leucas (Müller and Henle, 1839), in Fijian Waters
title_sort Insights Into Insular Isolation of the Bull Shark, Carcharhinus leucas (Müller and Henle, 1839), in Fijian Waters
dc.creator.none.fl_str_mv Glaus, Kerstin B. J.
Appleyard, Sharon A.
Stockwell, Brian L.
Brunnschweiler, Juerg M.
Shivji, Mahmood
Marie, Amandine D.
Rico, Ciro
author Glaus, Kerstin B. J.
author_facet Glaus, Kerstin B. J.
Appleyard, Sharon A.
Stockwell, Brian L.
Brunnschweiler, Juerg M.
Shivji, Mahmood
Marie, Amandine D.
Rico, Ciro
author_role author
author2 Appleyard, Sharon A.
Stockwell, Brian L.
Brunnschweiler, Juerg M.
Shivji, Mahmood
Marie, Amandine D.
Rico, Ciro
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ausbildungs-Stiftung für den Kanton Schwyz und die Bezirke See und Gaster
Shark Foundation
The University of the South Pacific (Fiyi)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Island populations
Connectivity
Coastal sharks
Shark reef marine reserve
Population genomics
Dispersal barriers
topic Island populations
Connectivity
Coastal sharks
Shark reef marine reserve
Population genomics
Dispersal barriers
description © 2020 Glaus, Appleyard, Stockwell, Brunnschweiler, Shivji, Clua, Marie and Rico.
publishDate 2020
dc.date.none.fl_str_mv 2020
2021
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/236377
url http://hdl.handle.net/10261/236377
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.3389/fmars.2020.586015
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Frontiers Media
publisher.none.fl_str_mv Frontiers Media
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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score 15,812429

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