Sulistyo et al,1998


Sulistyo, I. and Rinchard, J. and Fontaine, P. and Gardeur, J.N. and Capdeville, B. and Kestemont, P. (1998) Reproductive cycle and plasma levels of sex steroids in female Eurasian perch Perca fluviatilis. Aquat. Living. Resour., pp. 101-110

Associated characteristics

Species Development state Trait Primary Data Secondary Data
Perca fluviatilis Female Onset of oogenesis August-September, then increase gradually until mid-March ['March', 'August', 'September']
Perca fluviatilis Female Intensifying oogenesis activity Beginning of spring, GSI rapidly reached its maximum ['April', 'May', 'June']
Perca fluviatilis Female Maximum GSI value 25 % [April prior to spawning] 25.0 percent
Perca fluviatilis Female Oogenesis duration From august to April : 7-8 months 7.5 months
Perca fluviatilis Female Resting period 3-4 3.5 months
Perca fluviatilis Female Resting period <1% [End of spring and summer corresponds to the post-spawning period] 1.0 months