Oxytetracycline age validation of an adult shortfin mako shark Isurus oxyrinchus after 6 years at liberty

Autor: Suzanne Kohin, Michael J. Kinney, R. J. D. Wells
Rok vydání: 2016
Předmět:
Zdroj: Journal of Fish Biology. 89:1828-1833
ISSN: 0022-1112
DOI: 10.1111/jfb.13044
Popis: 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.
Databáze: OpenAIRE