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Contrasting global, regional and local patterns of genetic structure in gray reef shark populations from the Indo-Pacific region.
Boissin, E; Thorrold, S R; Braun, C D; Zhou, Y; Clua, E E; Planes, S.
Afiliación
  • Boissin E; PSL Research University: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan, 52 Avenue Paul Alduy, 66860, Perpignan, Cedex, France. emilie.boissin@univ-perp.fr.
  • Thorrold SR; Laboratoire d'Excellence CORAIL, Papetoai, French Polynesia. emilie.boissin@univ-perp.fr.
  • Braun CD; Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA, 02543, USA.
  • Zhou Y; Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA, 02543, USA.
  • Clua EE; Massachusetts Institute of Technology-Woods Hole Oceanographic Institution Joint Program in Oceanography/Applied Ocean Science and Engineering, Cambridge, MA, 02139, USA.
  • Planes S; School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, 98195, USA.
Sci Rep ; 9(1): 15816, 2019 11 01.
Article en En | MEDLINE | ID: mdl-31676818
Human activities have resulted in the loss of over 90% of sharks in most ocean basins and one in four species of elasmobranch are now listed at risk of extinction by the IUCN. How this collapse will affect the ability of populations to recover in the face of continued exploitation and global climate change remains unknown. Indeed, important ecological and biological information are lacking for most shark species, particularly estimates of genetic diversity and population structure over a range of spatial scales. Using 15 microsatellite markers, we investigated genetic diversity and population structure in gray reef sharks over their Indo-Pacific range (407 specimens from 9 localities). Clear genetic differentiation was observed between the Indian and the Pacific Ocean specimens (FST = 0.145***). Further differentiation within the Pacific included a West and East cleavage as well as North-Central and South-Central Pacific clusters. No genetic differentiation was detected within archipelagos. These results highlight the legacy of past climate changes and the effects of large ocean expanses and circulation patterns on contrasting levels of connectivity at global, regional and local scales. Our results indicate a need for regional conservation units for gray reef sharks and pinpoint the isolation and vulnerability of their French Polynesian population.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tiburones / Variación Genética Límite: Animals Idioma: En Revista: Sci Rep Año: 2019 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tiburones / Variación Genética Límite: Animals Idioma: En Revista: Sci Rep Año: 2019 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Reino Unido