Verigin, B.V. and Shakha, D.N. and Kamilov, B.G. (1990) Correlation among reproductive indicators of the silver carp, Hypothalmichthys molitrix, and the bighead, Aristichthys nobilis. J. Ichthyol., pp. 80-92
Species | Development state | Trait | Primary Data | Secondary Data |
Aristichthys nobilis | Egg | Oocyte diameter | Mean of 1.51 ± 0.016 in 1982 and 1.52 ± 0.06 in 1983 | 1.51 mm |
Aristichthys nobilis | Egg | Egg size after water-hardening | 5.00 ± 0.08 in 1982 and 4.50 ± 0.15 in 1983 | 5.0 mm |
Aristichthys nobilis | Female | Absolute fecundity | Mean of 712.5 ± 42.1 (range 381.6-964.4) in 1982 and 810.2 ± 62.2 (range 204.3-1658.8) in 1983 | 712.5 thousand eggs |
Hypophthalmichthys molitrix | Egg | Oocyte diameter | Mean of 1.27 ± 0.05 in 1982 and 1.25 ± 0.03 in 1983 | 1.27 mm |
Hypophthalmichthys molitrix | Egg | Egg size after water-hardening | Mean of 4.28 ± 0.03 in 1982 and 3.92 ± 0.02 in 1983 | 4.28 mm |
Hypophthalmichthys molitrix | Female | Age at sexual maturity | The broodstock analyzed is 5th - 6th generation reproduced artificially | 5.0 year |
Hypophthalmichthys molitrix | Female | Length at sexual maturity | Broodstock used was: mean 68.5±0.5 (range 58-78) in 1982 and mean 63.4±0.3 (range 55-76) in 1983 | 68.5 cm |
Hypophthalmichthys molitrix | Female | Weight at sexual maturity | Broodstock used was: mean 5.75 ± 0.15 (range 3.56-8.71) in 1982 and mean 4.81 ±0.07 (range 3.40-8.70) in 1983 | 5.75 kg |
Hypophthalmichthys molitrix | Female | Absolute fecundity | Mean 603.7 ± 29.5 (range 240.8-1261) in 1982 and 571.1 (range 103.3-1298.4) in 1983 | 603.7 thousand eggs |
Hypophthalmichthys molitrix | Male | Age at sexual maturity | The broodstock analyzed is 5th - 6th generation reproduced artificially | 5.0 years |
Hypophthalmichthys molitrix | Male | Length at sexual maturity | Broodstock used was: mean 64.7 ± 0.5, (range 54-75) in 1982, and mean 60.2 ± 0.5 (range 43-71) in 1983 | 64.7 cm |
Hypophthalmichthys molitrix | Male | Weight at sexual maturity | Broodstock used was mean 4.02 ± 0.2 (range 2.27-5.57) in 1982 and 3.50 ± 0.1 (range 2.40-5.20) in 1983 | 4.02 kg |