Reproductive Properties of Capoeta umbla (Heckel, 1843) Living in Lake Hazar (Elaziğ, Turkey)

Abstract

This study was aimed to investigate the reproductive properties of Capoeta umbla (Heckel, 1843)population in Lake Hazar (38° 29′ N; 39° 24′ E) between February 2009 and November 2009. A total of364 C. umbla (Heckel, 1843) samples (127 males and 237 females) were caught from Lake Hazar; the agecomposition of the specimens ranged between I and X age groups during the research. The firstmaturation was determined to be at age group II (23.31 cm in total length) for males and at age group III(25.61 cm in total length) for females. The highest mean GSI values were estimated in April for bothsexes. Egg diameter values ranged from 0.70 to 2.00 mm, and the highest mean value was found in May(1.708 mm). Spawning period was determined between April-June. Fecundity values ranged from 1860(Lt=24.70 cm and W=132 g) to 15624 (Lt=39.30 cm and W=448 g). The relationships between the totallength (L)-fecundity (F), fish weight (W)-fecundity (F) of C. umbla were found as FTL = 26.516*TL1.648(N = 128, r= 0.66) and FW = 212.71*W0.6418 (N = 128, r= 0.65), respectively.