Kristiansen, H. and Doving, K. (1996) The migration of spawning stocks of grayling Thymallus thymallus in lake Mjosa, Norway. Env. Biol. Fish., pp. 43-50
| Species | Development state | Trait | Primary Data | Secondary Data |
| Thymallus thymallus | Egg | Temperature for incubation | Grayling hatch in June | No data |
| Thymallus thymallus | Female | Age at sexual maturity | At age three, half of the grayling were mature and by age five years all males and females were mature | 3.0 year |
| Thymallus thymallus | Male | Age at sexual maturity | A few males were found to be mature at age two. At age three, half og the grayling were mature and by age five years all males and females were mature | 2.0 years |
| Thymallus thymallus | Spawning conditions | Spawning migration distance | Grayling tagged in the autumn were recaptured in the spawning periods in crekks up to 27 km away from the tagging site | 27.0 km |
| Thymallus thymallus | Spawning conditions | Spawning migration period | Ascend tributaries in May/June when water temperature increase to 5°C | ['May', 'June'] |
| Thymallus thymallus | Spawning conditions | Homing | 240 of 284 (84%) grayling recaptured in the tributaries were found in the tributary where they had been caught and tagged | Present |
| Thymallus thymallus | Spawning conditions | Spawning season | Spring spawner | ['April', 'May', 'June'] |
| Thymallus thymallus | Spawning conditions | Spawning period duration | Both males and females return to the lake shortly after spawning, males generally within 15 days and females within 10 days | 15.0 weeks |
| Thymallus thymallus | Spawning conditions | Parity | Grayling in Lake Mjosa are consecutive and repetitive spawners | No category |