Sparholt, 1985



Citation


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

Associated characteristics


Species Development state Trait Primary Data Secondary Data
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 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
Salvelinus alpinus Female 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 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