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¹ F.Ü. Su Ürünleri Yetistiriciligi Bölümü, Yetistiricilik Anabilim Dalı, Elazıg
² F.Ü. Su Ürünleri Yetistiriciligi Bölümü, Hastalıklar Anabilim Dalı, Elazıg Viewed : 3793 - Downloaded : 2562 In this study, age and sex composition, length and weight distributions, age-length, age- weight, length-weight relationships and condition factor of totally 66 catfish, Silurus glanis Linnaeus, 1758), caught from Çelik Lake between April 2012 October 2012, were examined. Sex composition was 40,91 % female and 59,09 % male. It was found that females and males were II-IV years old. The mean total length varied from females were 52,83±2,20 cm (2-age group), 71,03±12,24 cm (3- age group) to 75,31±10,81 cm (4-age group) and the mean weight varied from 823,60±97,46 g (2- age group), 2207,75±938,78 g (3-age group) to 2976,08±1749,11 g (4-age group); males were 52,42±1,97 cm (2-age group), 76,57±12,35 cm (3-age group) to 72,21±9,45 cm (4-age group) and the mean weight varied from 783,18±76,20 g (2-age group), 2759,39±1159,79 g (3-age group) to 2296,40±925,38 g (4-age group) according to age. For all fish, length-weight relationships, correlation coefficient and mean condition factor was calculated as W=0,0044L3,063, R2=0,9609 and 0,583±0,077 respectively. Keywords : Sex composition, age-lengt-weight relationships, condition factor