Successful development of lake whitefishes depends on a narrow range of temperature
- Lake whitefish is a species of freshwater fish found in North American lakes including all of the Great Lakes.
- It is considered highly valuable in commercial fishing and occasionally used in sports fishing.
- Lake whitefish embryos usually develop during the winter season; thus, these embryos may be susceptible to changes in temperature.
- Researchers incubated whitefish embryos in different but constant temperatures and in varying temperatures.
- They discovered that hatchlings had a lower survival rate in 8 °C and varying temperatures than in 2 °C and 5 °C temperatures.
- Additionally, lake whitefish eggs tend to hatch earlier in 8 °C and varying temperatures compared to eggs in 2 °C and 5 °C temperatures.
- Researchers also found that hatchlings in 8 °C and varying temperatures were significantly smaller than in 2 °C and 5 °C temperatures.
- The study highlights the effect of temperature during embryonic development in lake whitefishes.
Eme, J., Mueller, C. A., Lee, A. H., Melendez, C., Manzon, R. G., Somers, C. M., Boreham, D. R., & Wilson, J. Y. (2018). Daily, repeating fluctuations in embryonic incubation temperature alter metabolism and growth of Lake whitefish (Coregonus clupeaformis). Comparative biochemistry and physiology. Part A, Molecular & integrative physiology, 226, 49–56. https://doi.org/10.1016/j.cbpa.2018.07.027