Scott, A. (1985) Distribution, growth and feeding of postemergent grayling Thymallus thymallus in an English river. Trans. Am. Fish. Soc., pp. 525-531
| Species | Development state | Trait | Primary Data | Secondary Data |
| Thymallus thymallus | Egg | Degree-days for incubation | Hatch after a period of 177 degree-days | 177.0 °C * day |
| Thymallus thymallus | Larvae | Larvae behaviour | The larvae spend a further 4-5 days in the gravel susbtrate before emerging and beginning to feed near the water surface | Demersal |
| Thymallus thymallus | Larvae | Temperature during larval development | Over the study, water temperature ranged between 8.0°C and 14°C, and averaged 11.1°C | 8.0 °C |
| Thymallus thymallus | Larvae | Full yolk-sac resorption | Complete absoprtion of the yolk sac did not occur until fish reached a size of about 22 mm | 22.0 °C * day |