Cloud, J.G. and Erdahl, A.L. and Graham, E.F. (1988) Survival and continued normal development of fish embryos after incubation at reduced temperatures. Trans. Am. Fish. Soc., pp. 503-503
| Species | Development state | Trait | Primary Data | Secondary Data |
| Pimephales promelas | Egg | Oocyte diameter | 1.2-1.5 | 1.35 mm |
| Pimephales promelas | Egg | Temperature for incubation | 23 | 23.0 °C |