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    Caudal Spine Shedding Periodicity and Site Fidelity of Round Stingrays, Urobatis halleri (Cooper), at Seal Beach, California: Implications for Stingray-related Injury Management

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    Subject
    Caudal Spine; Urobatis halleri
    Author
    Lowe, Christopher G.; Moss, Greg J.; Hoisington IV, Greg; Vaudo, Jeremy J.; Cartamil, Daniel P.; Marcotte, Megan M.; Papastamatiou, Yannis P.
    Journal Title
    Scas: Bulletin of the Southern California Academy of Sciences
    Issue
    scas/vol106/iss1; 1
    Metadata
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    URI
    https://scholar.oxy.edu/handle/20.500.12711/11424
    Abstract
    Natural caudal spine replacement rates, population size and site fidelity of round stingrays, Urobatis halleri (Cooper), at Seal Beach, California were determined to evaluate the efficacy of clipping of caudal spines of stingrays to reduce injury to human beachgoers. Of the 2,183 stingrays caught, clipped, tagged, and released at Seal Beach, only 13 (0.06%) were recaptured over a threeyear period, indicating a large, mobile population. Natural spine replacement occurred between August–October, when a majority of rays were found with two spines. Monthly catch rates of rays were variable, but positively correlated with the number of injuries reported by beachgoers. There was no significant reduction in stingray-related injuries to beach goers at Seal Beach over the period when stingray caudal spine clipping was conducted.
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