Mann, 1974



Citation


No detailed citation.

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Leuciscus leuciscus Spawning conditions Spawning period duration Spawning occured during the second half of March and no ripe fish were found at either site in April No data
Leuciscus leuciscus Female Maximum GSI value Mean of 16%, range 15-17% [Mid-March] 16.0 percent
Leuciscus leuciscus Male Onset of spermatogenesis August [Elaboration of gonad tissue was not significant until August/September, from which time development continued through winter months] ['March', 'January', 'September', 'August', 'February']
Leuciscus leuciscus Female Oogenesis duration From August to mid-March No data
Leuciscus leuciscus Male Maximum GSI value Mean 1.5, range 1-2% [November through December] 1.5 percent
Leuciscus leuciscus Female Age at sexual maturity 3-4, rarely 2 [Male] 3.5 years
Leuciscus leuciscus Female Resting period < 0.2% [From April to mid-July] 0.2 months
Leuciscus leuciscus Male Main spermatogenesis activity October-November ['October', 'November']
Leuciscus leuciscus Female Onset of oogenesis Elaboration of gonad tissue was not significant until August/September, from which time devolpment continued through winter months ['March', 'January', 'September', 'August', 'February']
Leuciscus leuciscus Female Intensifying oogenesis activity From Mid-August to November, 2 to 10% ['August', 'November']
Leuciscus leuciscus Male Resting period < 0.2% [From mid-April to mid-August] 0.2 months
Leuciscus leuciscus Male Spermatogenesis duration [From mid-April to mid-August] No data
Leuciscus leuciscus Female Absolute fecundity Log egg number = 4038 log length (mm) - 5474 or log egg number=3900 log length (mm)-5128 4038.0 thousand eggs
Leuciscus leuciscus Spawning conditions Spawning season Spawning occured during the second half of March and no ripe fish were found at either site in April ['April', 'March']
Leuciscus leuciscus Female Weight at sexual maturity 29.5-46.4 g for age 3 and 53.0-84.5 for age 4 in two populations respectively [female] 37.95 kg
Leuciscus leuciscus Female Length at sexual maturity 16 ±1 [Female] 16.0 cm
Leuciscus leuciscus Male Length at sexual maturity 15.9 ± 0.5 [Male] 15.9 cm
Leuciscus leuciscus Male Weight at sexual maturity 29.1-46 g for age 3 and 52.8-82.0 for age 4 in two populations respectively [female] 37.55 kg
Leuciscus leuciscus Female Age at sexual maturity 3-4, yet mostly at 4 [Female] 3.5 year
Leuciscus leuciscus Spawning conditions Parity Female dace did not necessarily spawn every year once they had reached maturity No category