Genetic structure of populations of whale sharks among ocean basins and evidence for their historic rise and recent decline

Handle URI:
http://hdl.handle.net/10754/563525
Title:
Genetic structure of populations of whale sharks among ocean basins and evidence for their historic rise and recent decline
Authors:
Vignaud, Thomas M.; Maynard, Jeffrey Allen; Leblois, Raphaël; Meekan, Mark G.; Vázquez-Juárez, Ricardo; Ramírez-Macías, Dení; Pierce, Simon J.; Rowat, David; Berumen, Michael L. ( 0000-0003-2463-2742 ) ; Beeravolu, Champak R.; Baksay, Sandra; Planes, Serge
Abstract:
This study presents genetic evidence that whale sharks, Rhincodon typus, are comprised of at least two populations that rarely mix and is the first to document a population expansion. Relatively high genetic structure is found when comparing sharks from the Gulf of Mexico with sharks from the Indo-Pacific. If mixing occurs between the Indian and Atlantic Oceans, it is not sufficient to counter genetic drift. This suggests whale sharks are not all part of a single global metapopulation. The significant population expansion we found was indicated by both microsatellite and mitochondrial DNA. The expansion may have happened during the Holocene, when tropical species could expand their range due to sea-level rise, eliminating dispersal barriers and increasing plankton productivity. However, the historic trend of population increase may have reversed recently. Declines in genetic diversity are found for 6 consecutive years at Ningaloo Reef in Australia. The declines in genetic diversity being seen now in Australia may be due to commercial-scale harvesting of whale sharks and collision with boats in past decades in other countries in the Indo-Pacific. The study findings have implications for models of population connectivity for whale sharks and advocate for continued focus on effective protection of the world's largest fish at multiple spatial scales. © 2014 John Wiley & Sons Ltd.
KAUST Department:
Red Sea Research Center (RSRC); Biological and Environmental Sciences and Engineering (BESE) Division; Marine Science Program; Reef Ecology Lab
Publisher:
Wiley-Blackwell
Journal:
Molecular Ecology
Issue Date:
May-2014
DOI:
10.1111/mec.12754
PubMed ID:
24750370
Type:
Article
ISSN:
09621083
Sponsors:
All of the following provided funding for the research presented here (no particular order after the first organization): Labex CORAIL, Ministere de l'Ecologie du Developpement Durable et de l'Energie, Ministere de l'Outre Mer, Fonds Pacifique, IFRECOR, Delegation a la recherche de Polynesie, the Agence Nationale de la Recherche, Institut National de Recherche en Agronomie, the King Abdullah University of Science and Technology, Apache Energy Ltd, SeaWorld Research, Rescue Foundation Inc, Save our Seas Foundation, Australian Institute of Marine Science, Western Australian Department of Parks and Wildlife, EMARNAT-CONACYT, Save Our Seas Foundation, Whale Shark Mexico, Shark Foundation, Rufford Small Grant Foundation and the PADI Foundation. Part of the MIGRAINE work was undertaken using the resources of the INRA MIGALE and GENOTOUL bioinformatics platform and the computing grids of ISEM and CBGP labs. In total, the sampling across all aggregation sites required hundreds of colleagues, students and volunteers. We thank everyone that assisted with sampling.
Appears in Collections:
Articles; Red Sea Research Center (RSRC); Marine Science Program; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorVignaud, Thomas M.en
dc.contributor.authorMaynard, Jeffrey Allenen
dc.contributor.authorLeblois, Raphaëlen
dc.contributor.authorMeekan, Mark G.en
dc.contributor.authorVázquez-Juárez, Ricardoen
dc.contributor.authorRamírez-Macías, Deníen
dc.contributor.authorPierce, Simon J.en
dc.contributor.authorRowat, Daviden
dc.contributor.authorBerumen, Michael L.en
dc.contributor.authorBeeravolu, Champak R.en
dc.contributor.authorBaksay, Sandraen
dc.contributor.authorPlanes, Sergeen
dc.date.accessioned2015-08-03T11:53:38Zen
dc.date.available2015-08-03T11:53:38Zen
dc.date.issued2014-05en
dc.identifier.issn09621083en
dc.identifier.pmid24750370en
dc.identifier.doi10.1111/mec.12754en
dc.identifier.urihttp://hdl.handle.net/10754/563525en
dc.description.abstractThis study presents genetic evidence that whale sharks, Rhincodon typus, are comprised of at least two populations that rarely mix and is the first to document a population expansion. Relatively high genetic structure is found when comparing sharks from the Gulf of Mexico with sharks from the Indo-Pacific. If mixing occurs between the Indian and Atlantic Oceans, it is not sufficient to counter genetic drift. This suggests whale sharks are not all part of a single global metapopulation. The significant population expansion we found was indicated by both microsatellite and mitochondrial DNA. The expansion may have happened during the Holocene, when tropical species could expand their range due to sea-level rise, eliminating dispersal barriers and increasing plankton productivity. However, the historic trend of population increase may have reversed recently. Declines in genetic diversity are found for 6 consecutive years at Ningaloo Reef in Australia. The declines in genetic diversity being seen now in Australia may be due to commercial-scale harvesting of whale sharks and collision with boats in past decades in other countries in the Indo-Pacific. The study findings have implications for models of population connectivity for whale sharks and advocate for continued focus on effective protection of the world's largest fish at multiple spatial scales. © 2014 John Wiley & Sons Ltd.en
dc.description.sponsorshipAll of the following provided funding for the research presented here (no particular order after the first organization): Labex CORAIL, Ministere de l'Ecologie du Developpement Durable et de l'Energie, Ministere de l'Outre Mer, Fonds Pacifique, IFRECOR, Delegation a la recherche de Polynesie, the Agence Nationale de la Recherche, Institut National de Recherche en Agronomie, the King Abdullah University of Science and Technology, Apache Energy Ltd, SeaWorld Research, Rescue Foundation Inc, Save our Seas Foundation, Australian Institute of Marine Science, Western Australian Department of Parks and Wildlife, EMARNAT-CONACYT, Save Our Seas Foundation, Whale Shark Mexico, Shark Foundation, Rufford Small Grant Foundation and the PADI Foundation. Part of the MIGRAINE work was undertaken using the resources of the INRA MIGALE and GENOTOUL bioinformatics platform and the computing grids of ISEM and CBGP labs. In total, the sampling across all aggregation sites required hundreds of colleagues, students and volunteers. We thank everyone that assisted with sampling.en
dc.publisherWiley-Blackwellen
dc.subjectdemographic historyen
dc.subjectgenetic diversityen
dc.subjectmicrosatellitesen
dc.subjectmolecular ecology mtDNAen
dc.subjectpopulation expansionen
dc.subjectRhincodon typusen
dc.titleGenetic structure of populations of whale sharks among ocean basins and evidence for their historic rise and recent declineen
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentMarine Science Programen
dc.contributor.departmentReef Ecology Laben
dc.identifier.journalMolecular Ecologyen
dc.relation.referencesVignaud, T. M., Maynard, J. A., Leblois, R., Meekan, M. G., Vázquez-Juárez, R., Ramírez-Macías, D., … Planes, S. (2014). Data from: Genetic structure of populations of whale sharks among ocean basins and evidence for their historic rise and recent decline (Version 1) [Data set]. Dryad Digital Repository. https://doi.org/10.5061/dryad.489s0en
dc.relation.referencesDOI:10.5061/DRYAD.489S0en
dc.relation.referencesHANDLE:http://hdl.handle.net/10754/624172en
dc.contributor.institutionCRIOBE, CNRS, USR 3278, Lab Excellence CORAIL,EPHE, Papetoai, Moorea, Fr Polynesiaen
dc.contributor.institutionCornell Univ, Dept Ecol & Evolutionary Biol, Ithaca, NY 14568 USAen
dc.contributor.institutionINRA, CBGP UMR1062, F-34988 Montferrier Sur Lez, Franceen
dc.contributor.institutionAustralian Inst Marine Sci, UWA Oceans Inst MO96, Crawley, WA 6009, Australiaen
dc.contributor.institutionCtr Invest Biol Noroeste, La Paz 23096, Bcs, Boliviaen
dc.contributor.institutionTiburon Ballena Mexico Proyecto Conciencia Mexico, La Paz 23090, Bcs, Boliviaen
dc.contributor.institutionMarine Megafauna Fdn, Oakley, CA 94561 USAen
dc.contributor.institutionWild Me, Praia Do Tofo, Inhambane, Mozambiqueen
dc.contributor.institutionMarine Conservat Soc Seychelles, Victoria, Mahe, Seychellesen
kaust.authorBerumen, Michael L.en

Related articles on PubMed

All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.