Dumas, J. and Darolles, V. (1999) Caractéristiques environementales et survie embryonnaire du saumon Atlantique, Salmo salar L., dans un cours d'eau du piémont pyrénéen, la Nivelle (France). Cybium, pp. 29-44
| Species | Development state | Trait | Primary Data | Secondary Data |
| Salmo salar | Egg | Egg Buoyancy | Demersal [Female digs nest] | Demersal |
| Salmo salar | Egg | Temperature for incubation | 9-11°C Natural conditions | 10.0 °C |
| Salmo salar | Egg | Degree-days for incubation | 430-480 | 455.0 °C * day |
| Salmo salar | Spawning conditions | Spawning season | December | ['December'] |
| Salmo salar | Spawning conditions | Spawning period duration | 2 [From 2/12 to 18/12] | 2.0 weeks |
| Salmo salar | Spawning conditions | Spawning temperature | Below 12°C | 12.0 °C |
| Salmo salar | Spawning conditions | Spawning water type | Water current of about 44 cm/s | Flowing or turbulent water |
| Salmo salar | Spawning conditions | Spawning site preparation | Female digs nest | Susbtrate chooser |