Dabrowski et al, 1996


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

Associated characteristics

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