Age, Growth, and Mortality of Blue Runner, Caranx crysos, from the Northern Gulf of Mexico
Estimates of age, growth, and mortality for blue runner obtained from commercial fisheries in northwest Florida and the Mississippi delta were developed using otolith sections. The oldest fish was 11 years old, the largest was 460 mm fork length. Mean back-calculated fork lengths varied from 212 mm at age 1 to 422 mm at age 11. The von Bertalanffy equation for combined sexes was FLt = (1-e-0.35(t + 1.07)) where FL = fork length (mm) and t = age (years). Regression equations for the interconversion of fork length (FL), standard length (SL), and total length (TL) were:
TL = -7.4792 + FL (1.1938), (r = 1.00, α = 0.01),
FL = 1.9453 + SL (1.0596), (r = 1.00, α = 0.01), and
TL = -5.1694 + SL (1.2651), (r = 0.99, α = 0.01).
The weight·length relationship for combined sexes was W = 0.0000251355 FL 2.94593 (N = 193, r = 0.98, α = 0.01) where W = whole body weight in grams and FL = fork length in millimeters. Estimates of annual mortality, determined by four methods, ranged from 0.41 to 0.53.
Goodwin, J. M. IV and A. G. Johnson.
Age, Growth, and Mortality of Blue Runner, Caranx crysos, from the Northern Gulf of Mexico.
Northeast Gulf Science
Retrieved from https://aquila.usm.edu/goms/vol8/iss2/2