Development of microsatellite markers for globally distributed populations of the threatened silky shark, Carcharhinus falciformis
AuthorsO’Bryhim, J. R.
O’Bryhim, J. R.
Spaet, Julia L.Y.
Hyde, J. R.
Jones, K. L.
Adams, D. H.
Lance, S. L.
KAUST DepartmentRed Sea Research Center (RSRC)
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AbstractEighteen microsatellite loci were developed for the silky shark Carcharhinus falciformis and screened across a total of 53 individuals from the western Atlantic Ocean, Eastern Tropical Pacific Ocean, and Red Sea. The number of alleles per locus ranged from 3 to 19, observed heterozygosity ranged from 0.158 to 0.917, and the probability of identity values ranged from 0.010 to 0.460. Though believed to be one of the most abundant species of large sharks, C. falciformis were recently listed as “near threatened” globally and “vulnerable” in the Eastern Tropical Pacific by the IUCN, due to reductions in catch rates from both target and non-target fisheries (Dulvy et al. in Aquat Conserv 18:459–482, 2008). Very little information exists about the population structure and genetic diversity of C. falciformis around the world. These new loci will provide effective tools for examining the sustainability of this declining species. © 2014, Springer Science+Business Media Dordrecht.
SponsorsManuscript preparation was partially supported by the DOE under Award Number DE-FC09-07SR22506 to the University of Georgia Research Foundation. Bioinformatics support came from Biostatistics/Bioinformatics Shared Resource of the University of Colorado Cancer Center (5P30CA046934). InterAmerican Tropical Tuna Commission fishery observers provided samples from the Eastern Tropical Pacific.
JournalConservation Genetics Resources