Sparholt, H. (1985) The population, survival, growth, reproduction and food of Artic charr, salvelinus alpinus (L.), in four exploited lakes in Greenland. J. Fish. Biol., pp. 313-330
Species | Development state | Trait | Primary Data | Secondary Data |
Salvelinus alpinus | Egg | Oocyte diameter | The mean ovum diameter from 'small charr' females was 3.5 ± 0.2 and from 'large charr' 3.6 ± 0.2 | 3.5 mm |
Salvelinus alpinus | Female | Age at sexual maturity | No artic charr younger than 3+ were mature. females of the 'small charr' started to mature at age 4+. females of the 'large charr' started to mature sexually at age 9+ | 3.0 year |
Salvelinus alpinus | Female | Maximum GSI value | Mature small charr females: 3.2-16.6 (mean 10.1%) and mature large charr 3.8-14.3 (mean 8.4%) | 9.9 percent |
Salvelinus alpinus | Male | Age at sexual maturity | No artic charr younger than 3+ were mature. Males of the 'small charr' started to mature at age 3+. Males of the 'large charr' started to mature sexually at age 4+ | 3.0 years |
Salvelinus alpinus | Male | Maximum GSI value | Mature small charr males: 3.2-12.5 (mean 7.1%) and mature large charr 1.3-4.8 (mean 2.4%) | 7.85 percent |