Witzel, L.D. and MacCrimmon, H.R., 1983. Embryo survival and alevin emergence of brook charr, Salvelinus fontinalis and brown trout, Salmo trutta, relative to redd gravel composition. Canadian Journal of Zoology, 61(8), pp.1783-1792.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Salvelinus fontinalis | Egg | Degree-days for incubation | 10.5; 44 | 462.0 °C * day |
| Salvelinus fontinalis | Egg | Degree-days for incubation | 10.5; 46 | 483.0 °C * day |
| Salvelinus fontinalis | Egg | Degree-days for incubation | 10.5; 49 | 514.5 °C * day |
| Salvelinus fontinalis | Egg | Degree-days for incubation | 10.5; 43 | 451.5 °C * day |
| Salvelinus fontinalis | Egg | Degree-days for incubation | 10.5; 45 | 472.5 °C * day |