Barnett, H.K. and Paige, D.K., 2012. Egg development timing for riverine spawning pygmy whitefish (Prosopium coulterii). Northwest Science, 86(2), pp.85-94.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Prosopium coulterii | Egg | Egg size after water-hardening | 2.00 | 2.0 mm |
| Prosopium coulterii | Larvae | Initial larval size | 12.5 | 12.5 mm |
| Prosopium coulterii | Egg | Incubation time | 127-145 | 136.0 days |
| Prosopium coulterii | Egg | Egg adhesiveness | Adhesive | Adhesive |
| Prosopium coulterii | Egg | Temperature for incubation | 0.7 to slightly warmer than 4 | 0.7 °C |