Determination of Some Biometry and Fecundity Indicators in Female Khramulia (Capoeta capoeta gracilis, Keyserling 1861) in the Sefidroud River

Khramulia (Capoeta capoeta gracilis) is one of the semi economically valuable fishes in the rivers. This fish is a potamodoromous and spawning in rivers. The study of fecundity and biometry are one of the important indicators in reproduction and biology of fishes. The present study was conducted in the spring of 2010 on 36 Khramulia specimens caught from each of 2, 3 and 4 years fishes, in the Sefidroud River to investigate fecundity and biometry in this species. According to results, mean of total length was 195.5± 22.13 mm (152-256 mm), mean of fork length was 182.19± 20.98 mm (144-238 mm), mean of standard length was 168.38 ± 19.62 mm (130-220 mm), mean of weight 85.11 g (40.1-165.3), mean of gonad weight 2.23±0.98 g (0.52-4.60 g), mean of absolute fecundity 1572.60± 759.38 eggs (605.55-3901.28 eggs), mean of relative fecundity 19.51± 9.68 (8.77-57.27), mean of egg number 77.74± 38.82g (22.6-263.7g), mean of egg diameter 1.16 mm (0.98-2.23 mm) and Gonadosomatic index (GSI) 2.63% (0.9-4.9%). Maximum mean of absolute fecundity (2355.27 ± 699.64 eggs) belonged to 4-year specimens and maximum mean of relative fecundity (22.5± 12.9) belonged to 2-year specimens. Among different age groups of fish there were significant differences in mean of total length, fork length, standard length, weight, gonad weight, egg number, absolute fecundity and relative fecundity (p 0.05). While it wasn't significant difference egg diameter and Gonadosomatic index among these female broods (P>0.05).