Jamet, J-L. (1995) Reproduction, condition and food of adult arctic charr (Salvelinus alpinus, L.) in Lake Pavin (Massif central, France). Hydrobiologia, pp. 279-288
Species | Development state | Trait | Primary Data | Secondary Data |
Salvelinus alpinus | Egg | Oocyte diameter | 4.7 ± 0,6 (mean diameter) | 4.7 mm |
Salvelinus alpinus | Female | Length at sexual maturity | 23.5 | 23.5 cm |
Salvelinus alpinus | Female | Relative fecundity | 2.509 ± 0.964 | 2.51 thousand eggs/kg |
Salvelinus alpinus | Female | Onset of oogenesis | Gonad development began in August | ['August'] |
Salvelinus alpinus | Female | Maximum GSI value | 17.4 [max value observed in October] | 17.4 percent |
Salvelinus alpinus | Female | Resting period | 0.3 (Resting period lasted until July) | 2.0 months |
Salvelinus alpinus | Male | Length at sexual maturity | 20.7 | 20.7 cm |
Salvelinus alpinus | Male | Maximum GSI value | 4.2 (max value in September) | 4.2 percent |
Salvelinus alpinus | Male | Resting period | Almost 0 (Between December to July, value in July = 0.6%) | 9.0 months |
Salvelinus alpinus | Spawning conditions | Spawning migration period | Males are on the spawning sites two months prior to reproduction (from August onward) | ['August'] |
Salvelinus alpinus | Spawning conditions | Spawning season | October and the first half of December | ['October', 'December'] |
Salvelinus alpinus | Spawning conditions | Spawning period duration | 3-5 | 4.0 weeks |
Salvelinus alpinus | Spawning conditions | Spawning release | Once, may not spawn every year but spend several years between two spawning season | Multiple |