Kratt, L.F. and Smith, R.J.F. (1978) Breeding tubercles occur on male and female Arctic grayling (Thymallus arcticus). Copeia, pp. 185-188
| Species | Development state | Trait | Primary Data | Secondary Data |
| Hucho hucho | Male | Male sexual dimorphism | Breeding tubercles present | Present |
| Salvelinus namaycush | Male | Male sexual dimorphism | Breeding tubercles present | Present |
| Thymallus arcticus | Male | Male sexual dimorphism | Seasonnal occurrence of tubercles on breeding male and female. Male tubercles, knob-like structures located on the anterior portion of the scale. Female tubercles were less sharply defined, covering most of the surface of the affected scales | Absent |
| Thymallus arcticus | Spawning conditions | Spawning season | Spawning activity was observed in the Fond du Lac River from 15 May to 18 June, with peak activity 25-29 May | ['May', 'June'] |
| Thymallus arcticus | Spawning conditions | Spawning period duration | Spawning activity was observed in the Fond du Lac River from 15 May to 18 June, with peak activity 25-29 May | 27.0 weeks |