Henderson, 1996



Citation


No detailed citation.

Associated characteristics


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']