Jobling et al,1998


Jobling, M. and Tveiten, H. and Hatlen, B. (1998) Cultivation of arctic charr: an update. Aquaculture international, pp. 181-196

Associated characteristics

Species Development state Trait Primary Data Secondary Data
Salvelinus alpinus Egg Oocyte diameter Charr eggs are usually 4-5 mm in diameter 4.5 mm
Salvelinus alpinus Egg Temperature for incubation Mean (SD) hatching success was 47 (30)%for eggs incubated at 6°C, and increased to 65 (30)% for egg batches incubated at 3°C 47.0 °C
Salvelinus alpinus Egg Degree-days for incubation The time from egg fertilization to hatch is 350-500°C-days, depending upon the source of eggs and the incubation conditions 425.0 °C * day
Salvelinus alpinus Female Relative fecundity In general, a relative fecundity of 3000-4000 eggs per fish kg fish may be expected 3500.0 thousand eggs/kg
Salvelinus alpinus Spawning conditions Spawning season In the wild, Arctic charr usually spawn in the autumn at water temperatures of about 4°C ['October', 'November', 'December']
Salvelinus alpinus Spawning conditions Spawning period duration Spawning duration of 4-5 weeks 4.5 weeks
Salvelinus alpinus Spawning conditions Spawning temperature Spawning may be inhibited at temperatures over 10°C, the timing of ovulation may be delayed at 8°C compared to lower temperatures, and the process of egg over-ripening is greatly accelerated at temperatures above 5°C 10.0 °C