From rivers to ocean basins: The role of ocean barriers and philopatry in the genetic structuring of a cosmopolitan coastal predator

Autor: Devloo‐delva, Floriaan, Burridge, Christopher, Kyne, Peter, Brunnschweiler, Juerg, Chapman, Demian, Charvet, Patricia, Chen, Xiao, Cliff, Geremy, Daly, Ryan, Drymon, J. Marcus, Espinoza, Mario, Fernando, Daniel, Barcia, Laura Garcia, Glaus, Kerstin, González-Garza, Blanca, Grant, Michael, Gunasekera, Rasanthi, Hernandez, Sebastian, Hyodo, Susumu, Jabado, Rima, Jaquemet, Sébastien, Johnson, Grant, Ketchum, James, Magalon, Hélène, Marthick, James, Mollen, Frederik, Mona, Stefano, Naylor, Gavin, Nevill, John, Phillips, Nicole, Pillans, Richard, Postaire, Bautisse, Smoothey, Amy, Tachihara, Katsunori, Tillet, Bree, Valerio‐vargas, Jorge, Feutry, Pierre
Přispěvatelé: University of Tasmania [Hobart, Australia] (UTAS), CSIRO Marine and Atmosphere Research [Hobart], Commonwealth Scientific and Industrial Research Organisation [Canberra] (CSIRO), Charles Darwin University [Australia], Florida International University [Miami] (FIU), Universidade Federal do Ceará = Federal University of Ceará (UFC), Institute of Psychology [Beijing], Chinese Academy of Sciences [Changchun Branch] (CAS), University of Chinese Academy of Sciences [Beijing] (UCAS), University of KwaZulu-Natal [Durban, Afrique du Sud] (UKZN), South African Institute for Aquatic Biodiversity (SAIAB), National Research Foundation [South Africa] (NRF), Mississippi State University [Mississippi], Universidad de Costa Rica (UCR), Linnaeus University, University of the South Pacific (USP), Pelagios Kakunjá, James Cook University (JCU), The University of Tokyo (UTokyo), Ecologie marine tropicale dans les Océans Pacifique et Indien (ENTROPIE [Réunion]), Institut de Recherche pour le Développement (IRD)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS), Northern Territory Department of Primary Industry and Fisheries, Menzies Research Institute Tasmania, University of Tasmania, Hobart, Tasmania, Australia, Institut de Systématique, Evolution, Biodiversité (ISYEB ), Muséum national d'Histoire naturelle (MNHN)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL), Florida Museum of Natural History [Gainesville], University of Florida [Gainesville] (UF), University of Southern Mississippi (USM), University of Sydney Institute of Marine Science (USIMS), The University of Sydney, University of the Ryukyus [Okinawa], University of Queensland [Brisbane]
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Ecology and Evolution
Ecology and Evolution, 2023, 13 (2), ⟨10.1002/ece3.9837⟩
Ecology And Evolution (2045-7758) (Wiley), 2023-02, Vol. 13, N. 2, P. e9837 (22p.)
ISSN: 2045-7758
DOI: 10.1002/ece3.9837⟩
Popis: Understanding the population structure of a species is important to accurately assess its conservation status and manage the risk of local extinction. The Bull Shark (Carcharhinus leucas) faces varying levels of exploitation around the world due to its coastal distribution. Information regarding population connectivity is crucial to evaluate its conservation status and local fishing impacts. In this study, we sampled 922 putative Bull Sharks from 19 locations in the first global assessment of population structure of this cosmopolitan species. Using a recently developed DNA-capture approach (DArTcap), samples were genotyped for 3,400 nuclear markers. Additionally, full mitochondrial genomes of 384 Indo-Pacific samples were sequenced. Reproductive isolation was found between and across ocean basins (eastern Pacific, western Atlantic, eastern Atlantic, Indo-West Pacific) with distinct island populations in Japan and Fiji. Bull Sharks appear to maintain reproductive connectivity using shallow coastal waters as dispersal corridors, whereas large oceanic distances and historical land-bridges act as barriers. Females tend to return to the same area for reproduction, making them more susceptible to local threats and an important focus for management actions. Given these behaviours, the exploitation of Bull Sharks from insular populations, such as Japan and Fiji, may instigate local decline that cannot readily be replenished by immigration, which can in turn affect ecosystem dynamics and functions. These data also supported the development of a genetic panel to ascertain the population of origin, which will be useful in monitoring the trade of fisheries products and assessing population-level impacts of this harvest.
Databáze: OpenAIRE
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