Population genetic structure of blue-spotted maskray Neotrygon kuhlii and two other Indo-West Pacific stingray species (Myliobatiformes: Dasyatidae), inferred from size-polymorphic intron markers

Philippe Borsa 1, * Irma Arlyza 2 Martin Laporte 3 Patrick Berrebi 3
* Corresponding author
1 CoReUS2 - Biocomplexité des écosystèmes coralliens de l'Indo-Pacifique
2 P2O - Pusat Penelitian Oseanografi
3 UMR ISEM - Institut des Sciences de l'Evolution de Montpellier
Abstract : Exon-primed, intron crossing DNA markers (EPICs) were screened for Mendelian-like allele size polymorphisms in three stingray species (Himantura gerrardi, Neotrygon kuhlii and Taeniura lymna) from the central Indo-West Pacific, where they are commercially exploited. Four to 7 size-polymorphic intron loci were selected in a species, and were subsequently tested as genetic markers of stock structure. Sharp genetic differentiation was observed between populations within each species across the Indo-Malay-Papua archipelago (Weir and Cockerham's ^θ-values reaching 0.153-0.557 over a few thousand km). A trend of increasing genetic differentiation with increasing geographic distance was apparent in N. kuhlii, in which populations distant by 3,000 km were differentiated by an estimated ^θ ~ 0.375. This value was an order of magnitude higher than usually reported in coastal benthic teleost fishes and indicates strong sub-population structure. This is likely, at least partly, a consequence of the sedentary benthic habits of N. kuhlii at all life stages. Because replenishment of overexploited populations of N. kuhlii and two other stingray species from the central Indo-West Pacific is unlikely at ecological timescales, management should be planned at the local geographic scale.
Keywords : Himantura gerrardi Taeniura lymna population genetic structure fishery conservation Indo-Malay-Papua archipelago
Document type :
Journal articles
Complete list of metadatas

Cited literature [89 references]  Display  Hide  Download
https://hal.ird.fr/ird-00747306
Contributor : Philippe Borsa <>
Submitted on : Wednesday, October 31, 2012 - 1:48:22 AM
Last modification on : Friday, June 21, 2019 - 1:35:12 AM
Long-term archiving on : Friday, February 1, 2013 - 3:37:27 AM

File

MS_Stingrays_Borsa_et_al_p._HA...
Files produced by the author(s)

Identifiers

  • HAL Id : ird-00747306, version 1

Collections

IRD | ISEM | AGROPOLIS | B3ESTE | UNIV-MONTPELLIER | PSL | EPHE | CIRAD

Citation

Philippe Borsa, Irma Arlyza, Martin Laporte, Patrick Berrebi. Population genetic structure of blue-spotted maskray Neotrygon kuhlii and two other Indo-West Pacific stingray species (Myliobatiformes: Dasyatidae), inferred from size-polymorphic intron markers. Journal of Experimental Marine Biology and Ecology, Elsevier, 2012, 438, pp.32-40. ⟨ird-00747306⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

555

Files downloads

530

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD