The current study investigated some biological characteristics of wild-caught and pond-reared pikeperch (Sander lucioperca) from the Lake behind Aras Dam. The examined samples were 58 for wild fish and 33 for cultured fish. Total length, weight, age, gonad weight, condition factor, gonadosomatic index, hepatosomatic index, visceral index, and reproductive parameters in pikeperch were measured. The results showed that the mean total length (51.6 ± 5.4 cm), weight (1150.5 ± 442.1 g), and condition factor (0.8 ± 0.2) were higher in the pond-reared conditions compared to the wild group. The pikeperch examined in both wild and pond-reared conditions were in the age range of 2-4 years, with the 3-year-old age group having the highest percentage in both wild (53%) and pond-reared (71%) groups. The length-weight relationship in the wild conditions was determined as W= 0.0047x^3.1269, R²= 0.7953, and in the pond-reared conditions as W= 0.0058x^3.0794 with R²= 0.6877. Furthermore, the regression line slope or coefficient 'b' in both conditions was greater than 3, indicating a positive allometric growth pattern. Gonadosomatic, visceral, and hepatosomatic indices in both male and female pikeperch showed a significant difference between different ages (p < 0.05). The highest number of eggs/g in the wild was observed in the pond-reared conditions in the gonad weight range of 60-80 g, with 2183 eggs/g. The results also showed that the highest frequency of oocytes in the stage of III-IV (32%) was in the pond-reared conditions. Since the size and growth potential of pikeperch varies in different environmental conditions, the success of growth and reproduction of this fish in suitable conditions plays an important role in stock rehabilitation. The results revealed that wild pikeperch kept in pond-reared conditions have the potential for reproduction and fry production, making them suitable for this purpose.