To compare culture common carp (Cyprinus carpio) fecundity in Guilan and Mazandaran provinces and its relationship with female length, weight, height and age

Abstract

Introduction: This research was conducted to compare culture common carp fecundity in Guilan and Mazandaran Provinces related to their length, weight, height and age, respectively.
Materials & Methods: Sixty fish samples with 4-5 Maturity stages cached and studied from Guilan and Mazandran provinces, 30 from each during February 2018 to November 2018.
Result: The Mean of body weight, total length and age for Guilan and Mazandaran samples were (4.22±0.99) and (3.13±0.30) kg, (57.33±4.68) and (60.93±3.90) cm, (3.80±0.38) and (3.50±0.51) years. The mean absolute and relative fecundity of Guilan and Mazandaran samples were 239900 ± 57921.67 and 139900 ± 23008.76 and,57629.31±5583.58 and 43568.639 ±2129.45 respectively. The mean height and egg diameters measured 17.50±2.06 and 14.60± 1.42 and, 0.759 ±0.11682 and 0.640 ± 0.4291. The mean of fecundity increased with increation of fish forkal length, body weight and age. The Regression rate were calculated between fecundity and fish body weight for Guilan and Mazandran (0.94 and 0.87), fecundity and total length (0.72 and 0.81) and fecundity and fish age (0.68 and 0.71) respectively.
Conclusion: There was significant differentiation in fecundity between Guilan and Mazandaran samples.