The present study was conducted in the Hammam Debagh reservoir in northeastern Algeria, from November 2019 to April 2020. In order. To study the age and growth of the (Sander lucioperca) populating this reservoir, 126 specimens were sampled, including 77 males and 49 females. The ages, total lengths, and total weights of the samples ranged from 0-7 years to 15.7-57.1 cm , and from 92.1 to 1883 gr respectively. The age of the fish is determined by the direct method (scalimetry). The height-weight relationship was described by the equation TL = 0.003TW 3.28 for total weight and TL = 0.002EW 3.43 for eviscerated weight.The equation of the linear growth curve according to the Von Bertalanffy model is written (as) Lt = 61.86 (1-e-0.3(t+0.52)), and the equation of the weight growth curve is written as Wt = 2253.96 (1-e-0.3(t+0.52)) 3.28. The studied species show a higher rate of masculinity (61.11%) than of femininity (38.89%). The egg-laying period occurs between April and June. Our results also reveal that the liver and muscle contribute significantly in the reproduction of pikeperch.
Key words: Sander lucioperca, Scalemetry, Growth, Age, Hammam Debagh Reservoir