Population structure of yellowtail snapper using age-based life history and otolith shape in southern Gulf of Mexico.

ABSTRACT: Yellowtail snapper Ocyurus chrysurus is commercially important throughout its distribution range. In southern Gulf of México, it is caught as part of a largely undocumented multispecific snapper fishery. Samplings were done at three fishing sites with the highest landings volume of Yucatán, México: Celestún, Dzilam de Bravo, and Río Lagartos. Age and growth parameters were generated with the von Bertalanffy growth model via annuli counts in otolith thin sections of 1,124 individuals. Marginal increment analysis confirmed that opaque zone formation is annual and occurs from July to September. Overall age range was 0 + to 12 years (17.7 to 38.9 cm fork length) but differed between Celestún (0 + to 9 years), Dzilam de Bravo (1 to 12 years), and Río Lagartos (2 to 12 years). Growth parameters

SUBMITTER: Renan X 

PROVIDER: S-EPMC12002489 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature