Determination of age and growth of the striped seabream Lithognathus mormyrus (Sparidae), in the Canary archipelago by otolith readings and backcalculation
Keywords:Lithognathus mormyrus, age, growth, otolith readings, backcalculation, Canary Islands
The age and growth of the striped seabream Lithognathus mormyrus caught off the Canary Islands (central-east Atlantic) from January to December 1999 were studied. A total of 496 individuals, ranging in size between 113 and 350 mm total length, were examined. Otoliths clearly showed the ring pattern common to teleost fishes. One year´s growth was made up of one opaque and one translucent ring. The opaque ring was deposited during the summer months and the translucent one during the winter months. Fish aged 0-8 years old were found. The von Bertalanffy growth parameters for all fish were: L?=427 mm, k=0.19 year-1, and t0=1.46 year. The otolith readings for estimating age and growth were confirmed by using the backcalculation method.
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