A multi-locus comparative study of dispersal in three codistributed demersal sharks from eastern Australia

Shannon Corrigan, Charles Huveneers, Adam Stow, Luciano Beheregaray

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    Demersal elasmobranchs are ecologically important mesopredators but little is known about their population connectivity or dispersal patterns. Here we use a comparative approach based on mitochondrial DNA and nuclear amplified fragment length polymorphism (AFLP) markers to examine spatial genetic structure and dispersal in three closely related demersal elasmobranchs from eastern Australia: Orectolobus halei, Orectolobus maculatus, and Orectolobus ornatus. We found evidence of significant spatial genetic structure, possibly indicating regional philopatry in wobbegongs. The molecular data also indicate that dispersal in wobbegongs may be sex-biased. This represents the first genetic study of dispersal and population connectivity in codistributed demersal sharks. It provides insights into the ecology of dispersal behaviours with implications for conservation management of demersal species.

    Original languageEnglish
    Pages (from-to)406-415
    Number of pages10
    JournalCanadian Journal of Fisheries and Aquatic Sciences
    Volume73
    Issue number3
    DOIs
    Publication statusPublished - 6 Oct 2015

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