View of Mt. William on Anvers Island, Antarctica
Cold temperature poses a significant challenge to fish because as ectotherms, their body temperature conforms to environmental temperature.   One of the greatest challenges imposed by life at cold temperature is maintaining the production of ATP because for every 10°C decrease in temperature there is an approximate two-fold decrease in the catalytic rate of enzymes, known as the Q10 effect.

Research in my laboratory is aimed at understanding how fish maintain energy production at cold temperature.  One area of our research focuses on understanding how mitochondrial function and density changes in response to seasonal changes in temperature in the threespine stickleback, Gasterosteus aculeatus.  A second focus of our research is understanding the unique adaptations that have arisen in Antarctic fishes that inhabit the chronically cold waters of the Southern Ocean

Research in my laboratory is funded by grants from the National Science Foundation.