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  • Title: Oxytetracycline age validation of an adult shortfin mako shark Isurus oxyrinchus after 6 years at liberty.
    Author: Kinney MJ, Wells RJ, Kohin S.
    Journal: J Fish Biol; 2016 Sep; 89(3):1828-33. PubMed ID: 27325152.
    Abstract:
    This study presents findings on an oxytetracycline injected adult male shortfin mako Isurus oxyrinchus recaptured in waters off of southern California after 6 years at liberty. During the period at liberty, the vertebral band-pair deposition rate was validated at one per year. This result indicates that from a time at or near sexual maturity, male I. oxyrinchus in the north-east Pacific Ocean exhibit a band-pair deposition rate of one band pair per year, while deposition rates for juveniles in the area have been validated at two band pairs per year.
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