Mann, 1973



Citation


No detailed citation.

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Rutilus rutilus Female Maximum GSI value 14-16 [Just prior spawning in May] 15.0 percent
Rutilus rutilus Male Onset of spermatogenesis September-October and contiue to increase regularly ['October', 'September']
Rutilus rutilus Female Oogenesis duration 8-9 [From September until mid-May] 8.5 months
Rutilus rutilus Male Maximum GSI value 8-9 [March] 8.5 percent
Rutilus rutilus Female Age at sexual maturity 3-4 [Sex specified] 3.5 years
Rutilus rutilus Female Resting period 3 [From June to September] 3.0 months
Rutilus rutilus Male Main spermatogenesis activity February-Beginning of March ['February', 'March']
Rutilus rutilus Female Onset of oogenesis Starts in September and then increase regularly until May ['May', 'September']
Rutilus rutilus Female Intensifying oogenesis activity Not a true main activity because there is a regular increase No data
Rutilus rutilus Male Resting period About 1 [June, July until August] 1.0 months
Rutilus rutilus Spawning conditions Spawning season Latter half of May ['May']
Rutilus rutilus Female Age at sexual maturity 3-4 [Sex specified] 3.5 year