Determination of some growth characteristics of Barbus Grypus Heckel, 1843 (shabut) population living in Karakaya Dam Lake

In this study; Some growth characteristics such as sex distribution, lenght and weight relationship, age determination, von Bertalanffy growth parameters and condition factor of Arabibarbus grypus (Heckel, 1843) were investigated in Karakaya Dam Lake. It was determined that 37.84% (28 individuals) of the 74 individuals examined were female, 62.16% (46 individuals) were male, and the female/male ratio was 1/0.6087. The total length and weight of the samples were 32.0-62.2 cm and 354.0-3046 g in females; It varies between 25.0-63.0 cm and 200.0-3350 g in males. The age groups of the examined samples ranged from II to VI. The length-weight relationship was calculated as W = 0.0067L3.079 in females, W = 0.011L2.962 in males, and W = 0.0096L2.993 in all individuals. It was determined that A. grypus showed an isometric growth (p>0.05) in Karakaya Dam Lake. von Bertalanffy growth parameters Lt = 76.53 [1 – e –0.348 (t + 1.22)] for females, Lt = 89.83 [1 – e –0.212 (t + 2.08)] for males and Lt = 92.40 [1 – e –0.200 (t + 2.21)] for all individuals. The growth performance index (Ф') value calculated as 3.309, 3.233 and 3.232 for female, male and all individuals, respectively. Condition factor varies between 0.707-1.120 in females and 0.702-1.356 in males.