By Michael Lawrence


Mike sampling a fish

My current body of work looks to address the role of the stress axis in mediating predator-prey interactions in wild fishes. My research primarily focuses on the biology of pumpkinseed (Lepomis gibbosus) in the Rideau Lakes region. Specifically, I’m looking to characterize the physiological consequences of sustained cortisol elevation on the metabolic operation of pumpkinseed and to link these alterations with behavioural parameters that are indicative of anti-predator capacity and/or risk aversion. During my research, I will also be quantifying the influence of cortisol on altering predation rate in a mesocosm setting thereby linking physiological, behavioural and ecological scale processes together to thoroughly address the question of how the stress axis mediates predator-prey interactions.