No detailed citation.
Species | Development state | Trait | Primary Data | Secondary Data |
Sander vitreus | Female | Maximum GSI value | Mean of 16, can reach 20-22 [April] | 21.0 percent |
Sander vitreus | Male | Onset of spermatogenesis | August | ['August'] |
Sander vitreus | Male | Maximum GSI value | 4% in August and also 3.3 in April, prior to spawning | 4.0 percent |
Sander vitreus | Male | Main spermatogenesis activity | Mostly August-september then remained slowly decreased until March, slight increase | ['August', 'March'] |
Sander vitreus | Female | Onset of oogenesis | August, mostly in September | ['August', 'September'] |
Sander vitreus | Female | Intensifying oogenesis activity | Increase regularly from September until March, January ? | ['March', 'January', 'September'] |