Abstract

• The growth performance and age determination of Notopterus notopterus from Northern Part of Meiktila Lake were investigated during December 2019 to August 2020 by using back calculated length at age and von Bertalanffy growth curve. The total length, standard length and weight of fishes were recorded. Five different calcified structures viz. scale, otolith, vertebrae, operculum and cleithrum of fishes were applied. Annuli in these calcified structures reading revealed 4 yrs, 5 yrs and 6 yrs in which operculum reading was more precise for age determination. The relevant combination of growth constants to estimating lengths from age interpretation to the nearest asymptotic length revealed performance index in female and with the growth with in male. The present results will provide the precise interpretation of aging structure of local fishes as well as to give the sense of their biological aspect in aquaculture.