3968916
doi
10.5061/dryad.kp32qr6
oai:zenodo.org:3968916
user-dryad
Ravigné, Virginie
Peuplement Végétaux et Bio-agresseurs en Milieu Tropical
Fontaine, Michaël
University of Montpellier
Rieux, Adrien
Soil Agro and Hydrosystems Spatialization
Gilabert, Aude
Peuplement Végétaux et Bio-agresseurs en Milieu Tropical
Cliff, Geremy
KwaZulu‐Natal Sharks Board, Umhlanga Rocks, South Africa*
Clua, Eric
EPHE, CNRS UPVD, USR 3278 CRIOBE*
Daly, Ryan
Oceanographic Research Institute, Durban, South Africa*
Heithaus, Michael
Florida International University
Kiszka, Jeremy
Florida International University
Matich, Philip
Florida International University
Nevill, John
Environment Seychelles, Victoria, Seychelles*
Smoothey, Amy
NSW Department of Primary Industries, Sydney Institute of Marine Science, Mosman, NSW, Australia*
Temple, Andrew
Newcastle University
Berggren, Per
Newcastle University
Jaquemet, Sebastien
(Université de La Réunion*
Magalon, Hélène
Université de la Réunion*
Data from: Population structure, connectivity and demographic history of an apex marine predator, the bull shark Carcharhinus leucas
Pirog, Agathe
Ecologie Marine Tropicale des Océans Pacifique et Indien
info:eu-repo/semantics/openAccess
Creative Commons Zero v1.0 Universal
https://creativecommons.org/publicdomain/zero/1.0/legalcode
ABC-RF
Carcharhinus leucas
microsatellite DNA
bull shark
mito-nuclear discordance
Knowledge of population structure, connectivity and effective population size remains limited for many marine apex predators, including the bull shark Carcharhinus leucas. This large-bodied coastal shark is distributed worldwide in warm temperate and tropical waters, and uses estuaries and rivers as nurseries. As an apex predator, the bull shark likely plays a vital ecological role within marine food webs, but is at risk due to inshore habitat degradation and various fishing pressures. We investigated the bull shark's global population structure and demographic history by analysing the genetic diversity of 370 individuals from 11 different locations using 25 microsatellite loci and three mitochondrial genes (CR, nd4, cytb). Both types of markers revealed clustering between sharks from the Western Atlantic and those from the Western Pacific and the Western Indian Ocean, with no contemporary gene flow. Microsatellite data suggested low differentiation between the Western Indian Ocean and the Western Pacific, but substantial differentiation was found using mitochondrial DN A. Integrating information from both types of markers and using Bayesian computation with a random forest procedure (ABC-RF), this discordance was found to be due to a complete lack of contemporary gene flow. High genetic connectivity was found both within the Western Indian Ocean and within the Western Pacific. In conclusion, these results suggest important structuring of bull shark populations globally with important gene flow occurring along coastlines , highlighting the need for management and conservation plans on regional scales rather than oceanic basin scale.
<div class="o-metadata__file-usage-entry">
Microsatellite genotypes of the bull shark samples
<div class="o-metadata__file-description">Sampling information are indicated for each individual (date of sampling, sampling locality, sex, total length) as well as the identified mitochondrial haplotypes for each gene (control region, nicotinamide adenine dinucleotide dehydrogenase subunit 4, cytochrome b) and the concatenated mitochondrial haplotype (CR-nd4-cytb). Microsatellite genotypes for the 25 loci are also indicated (2 alleles per locus, 3-digits per allele). Missing data are indicated by "NA" or by a question mark.</div>
<div class="o-metadata__file-name">microsatellite genotypes.xlsx</div>
</div>
Zenodo
2021-04-16
info:eu-repo/semantics/other
3968915
user-dryad
1654145709.502292
108849
md5:96498682785660188738c515d544f056
https://zenodo.org/records/3968916/files/microsatellite genotypes.xlsx
public