Gray, M.A. (1928) The growh of fish. III. The effect of temperature on the development of the eggs of Salmo fario. , pp.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Salmo trutta fario | Egg | Incubation time | Number of fays from fertilisation to hatching 165 [At 2.8°C], 103 [At 5°C], 81 [At 6.6°C], 47 [At 10°C] and 32 [At 12.2°C] | 165.0 days |
| Salmo trutta fario | Egg | Temperature for incubation | Normal trout larvae can be raised from eggs incubated at any temperature between 2.8°C and 13°C without high mortality. Above 15°C the mortalityishigh | 2.8 °C |