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Age and growth of the shortfin mako shark, Isurus oxyrinchus, were estimated using the number of growth marks on whole vertebrae from 109 individuals caught during 2000–2003 off the western coast of Baja California Sur, Mexico. A further 110 individuals were measured to obtain data on the age distribution of the population being fished. Sharks ranged from 77 to 290cm in total length (TL). A significant...
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