Growth and mortality of larval atlantic bumper chloroscombrus chrysurus (pisces: carangidae) in the southern gulf of Mexico

摘要

Seasonal age, growth and mortality rates of larval Atlantic bumper, Chloroscombrus chrysurus, were determined form larvae collected in 13 cruises in the southern Gulf of Mexico. Age was estimated form growth increments in sagittal otoliths. One and two Days, respectively, were added in the linear model to the growth increments in spring- Summer and winter seasons, to estimate the probable true age. Results for spring, sum- Mer and winter are: hatching size 0.76, 0.84 and 1.02 mm; growth rates 0.17, 0.17 and 0.12 mm d~-1, and mortality rates 0.30, 0.16 and 0.15 d~-1, respectively.