Growth Properties of Chub (Leuciscus cephalus L., 1758) in Lake Tödürge (Zara/Sivas)

Authors : Bülent ÜNVER, Jülide TANYOLAÇ

Pages : 257-270

View : 15 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :In this research, sex and age compositions, age-length, age-weight, length-weight relations, condition factors were investigated on 674 chub insert ignore into journalissuearticles values(Leuciscus cephalus L., 1758); specimens caught from Lake Tödürge, Sivas between April and November 1994. The age composition of L. cephalus specimens were between I-VII years and sex percentages were calculated as 68.25 % for females and 31.75 % for males. Determined minimum and maximum forklength values were 53 and 299 mm; weights were 1.5 and 347.1 g. Von Bertalanffy equations of L. cephalus specimens as length-growth and weight-growth were established as Lt = 474.19 [1-e-0.10608insert ignore into journalissuearticles values(t+0.3805);] for females; Lt = 545.26 [1-e -0.07919insert ignore into journalissuearticles values(t+0.7563);] for males and Wt=1565.39[1-e-0.10608insert ignore into journalissuearticles values(t+0.3805);]3.0964 for females and Wt = 2287.67[1-e-0.07919insert ignore into journalissuearticles values(t+0.7563);]3.0376 for males. Length-weight relationship were found for female and male specimens as W= 0.0101 L3.0964 and W= 0.0121 L3.0376, respectively. Average condition factor values were estimated as 0.81 for females and as 1.07 for males. According to findings; sexual maturity age of female and male L. cephalus specimens were III-IV and II-III, respectively.
Keywords : Chub, Leuciscus cephalus, growth, Lake Tödürge