Some Population Parameters of Mirror Carp (Cyprinus carpio L., 1758) Inhabiting Atatürk Dam Lake

<span lang="EN-US">This study was conducted at Atatürk Dam Lake between April 2011-March 2012. In this study, a total of 231 (106 female, 125 male) <em>Cyprinus carpio</em> L., 1758 samples were analyzed. It was determined that samples were ranged between I-X age groups and male/female ratio was determined as 1.18:1 Total length values were ranged between 13.5-59.2 cm for males, 14.6-59.3 cm for females; weight values were ranged between 53.2-4662.5 g for males, 56.4-4668.0 g for females; condition factor values were ranged between 1.182-4.175 for males and 1.251-3.514 for females. Length-weight relationship for males <em>W</em>=0.0346*<em>TL</em>^2.807 (<em>R²</em>=0.95), female <em>W</em>=0.0246*<em>TL</em>^2.8922 (<em>R²</em>=0.96) and in general population <em>W</em>=0.0295*<em>TL</em>^{2. 8472} (<em>R²</em>=0.95) were detected. VBBD (von Bertalanffy growth equation) for all population parameters <em>L∞</em>=111.01, <em>K</em>=0.06, <em>t₀</em>=-1.48, <em>W∞</em>=19746.57 and natural mortality (<em>M</em>) is determined as 0.1671. The highest average Gonadosomatic index values were determined in April for both sexes. Egg diameter values were measured between 0.60-1.33 mm, and the highest average value was found in April (1.27 mm). Reproduction period was determined between April-July. Fecundity values was calculated between 13468-885762. The first maturation was determined to be in age group III (30.848 cm in total length) for males and in age group IV (32.099 cm in total length) for females.