Roche-Mayzaud, O. and Mayzaud, P. (1998) Changes in lipid classes and trypsin activity during the early development of brrok charr, Salvelinus fontinalis (Mithcill) fry. Aquaculture Research, pp. 137-152
| Species | Development state | Trait | Primary Data | Secondary Data |
| Salvelinus fontinalis | Egg | Egg size after water-hardening | Means of diameter range from 4.65 +/-0.5 to 4.80 +/-0.04 | 4.65 mm |
| Salvelinus fontinalis | Egg | Temperature for incubation | The freshwater temperature was 9°C at the beginning of November and rapidly decreased to 1-0°C by the end of December, although heating systems kept the water temperature in the incubation trays above 3°C | 0.5 °C |
| Salvelinus fontinalis | Egg | Degree-days for incubation | After 100% hatching occurred, varying 437 DD, 416 DD and 458 DD, water temperature was gradually increased to 8°C | 100.0 °C * day |
| Salvelinus fontinalis | Larvae | Temperature during larval development | After 100% hatching occurred, water temperature was gradually increased to 8°C | 100.0 °C |
| Salvelinus fontinalis | Larvae | Full yolk-sac resorption | The feeding experiment was initiated 112 days after fertilization (5 weeks after hatching). Sampling started when all fry from a given group hadesorbed started exogenous feeding, with the yolk sac being fully or partially resorbed | 112.0 °C * day |
| Salvelinus fontinalis | Larvae | Onset of exogeneous feeding | The feeding experiment started 16 weeks after fertilization (21 February 1992 for SWF2 and FWF2, and 28 February 1992 for FWF3), when all the free-swimming fry were feeding (mouths and complete digestive tracts functional). This corresponded to 658.2 degree-days from time of fertilization for FWF2 and SWF2, and 622.5 degree-days for FWF3 | 16.0 °C * day |