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There and back again: review of residency and return migrations in sharks, with implications for population structure and management Chapman, D.D.; Feldheim, K.A.; Papastamatiou, Y.P.; Hueter, R.E. (2015). There and back again: review of residency and return migrations in sharks, with implications for population structure and management, in: Carlson, C.A. et al. Ann. Rev. Mar. Sci. 7. Annual Review of Marine Science, 7: pp. 547-570. https://dx.doi.org/10.1146/annurev-marine-010814-015730 In: Carlson, C.A.; Giovannoni, S.J. (Ed.) (2015). Ann. Rev. Mar. Sci. 7. Annual Review of Marine Science, 7. Annual Reviews: Palo Alto. ISBN 978-0-8243-4507-5. 596 pp. In: Annual Review of Marine Science. Annual Reviews: Palo Alto, Calif. ISSN 1941-1405; e-ISSN 1941-0611

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Beschikbaar in	Auteurs
VLIZ: Non-open access 358101 [ aanvragen ]

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Trefwoorden

Conservation Population dynamics Telemetry Tracking Marien/Kust

Author keywords

philopatry, genetics

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Auteurs		Top
Chapman, D.D. Feldheim, K.A. Papastamatiou, Y.P. Hueter, R.E.

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Abstract

The overexploitation of sharks has become a global environmental issue in need of a comprehensive and multifaceted management response. Tracking studies are beginning to elucidate how shark movements shape the internal dynamics and structure of populations, which determine the most appropriate scale of these management efforts. Tracked sharks frequently either remain in a restricted geographic area for an extended period of time (residency) or return to a previously resided-in area after making long-distance movements (site fidelity). Genetic studies have shown that some individuals of certain species preferentially return to their exact birthplaces (natal philopatry) or birth regions (regional philopatry) for either parturition or mating, even though they make long-distance movements that would allow them to breed elsewhere. More than 80 peer-reviewed articles, constituting the majority of published shark tracking and population genetic studies, provide evidence of at least one of these behaviors in a combined 31 shark species from six of the eight extant orders. Residency, site fidelity, and philopatry can alone or in combination structure many coastal shark populations on finer geographic scales than expected based on their potential for dispersal. This information should therefore be used to scale and inform assessment, management, and conservation activities intended to restore depleted shark populations.

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