Koops, M.A. and Tallman, R.F., 2004, August. Adaptive variation in the development and mortality of Arctic char eggs. In Physiology of Fish Eggs and Larvae: Proc. Symp. Int. Congr. Biol. Fish, Manaus, Brazil, 1 (pp. 47-68).
| Species | Development state | Trait | Primary Data | Secondary Data |
| Salvelinus alpinus | Egg | Degree-days for incubation | 3; 120 | 360.0 °C * day |
| Salvelinus alpinus | Egg | Degree-days for incubation | 5.3; 92 | 487.6 °C * day |
| Salvelinus alpinus | Egg | Degree-days for incubation | 9.1; 50 | 455.0 °C * day |