Dabrowski, K. and Ciereszko, R.E. and Ciereszko, A. and Toth, G.P. and Christ, S.A. and El-Saidy, D. and Ottobre, J.S. (1996) Reproductive physiology of yellow perch (Perca flavescens): enviromental and endocrinological cues. J. Appl. Ichthyol., pp. 139-148
Species | Development state | Trait | Primary Data | Secondary Data |
Perca flavescens | Female | Age at sexual maturity | 3-4 [Sex specified] | 3.5 year |
Perca flavescens | Female | Weight at sexual maturity | 30-40 g | 35.0 kg |
Perca flavescens | Female | Oocyte development | Synchronous oocyte growth | Synchronous |
Perca flavescens | Female | Onset of oogenesis | Active growth of ova starts in early september and formation of yolk in November | ['November'] |
Perca flavescens | Female | Maximum GSI value | 22 in wild populations and up to 30.9% in cultured perch | 22.0 percent |
Perca flavescens | Female | Oogenesis duration | Period of ova growth and vitellogenesis = 200 days, followed by a short stage of final maturation of oocytes and ovulation (few days) | 200.0 months |
Perca flavescens | Female | Resting period | May until August | 5.0 months |
Perca flavescens | Female | Resting period | < 1% | 1.0 months |
Perca flavescens | Male | Age at sexual maturity | 2 [Sex specified, rarely at 1] | 2.0 years |
Perca flavescens | Male | Weight at sexual maturity | 5-6 g | 5.5 kg |
Perca flavescens | Male | Onset of spermatogenesis | Fast growth of the testes during autumn, begin in September and remain high until spring | ['April', 'May', 'June', 'September', 'October', 'November', 'December'] |
Perca flavescens | Male | Maximum GSI value | No value [November] | No data |
Perca flavescens | Male | Spermatogenesis duration | Spermatigenesis is completed by December | 2.0 months |
Perca flavescens | Spawning conditions | Spawning release | Total spawner | Total |
Perca flavescens | Spawning conditions | Spawning release | All together; | Total |
Perca flavescens | Spawning conditions | Parity | Iteroparous | Iteroparous |