Dr. Sarah Alderman Adjunct Faculty, Department of Integrative Biology, My research interests span functional systems, regulatory levels, and life history stages of fish with a focus on how an animal’s physiology changes in response to environmental stressors. I am specifically interested in the regulation of the neuroendocrine stress response, and how elevated cortisol levels affect brain and heart function to modify physiology and behaviour. My research employs both model and non-model species (ex. zebrafish, Pacific salmon) to address specific questions on the mechanisms and consequences of stressor-induced changes to physiology using advanced molecular, histological, and proteomics tools. Current projects include: (i) effects of crude oil exposure on salmon development and physiology; (ii) adult neurogenesis in basal fishes; (iii) dysregulation of adult neurogenesis by common aquatic pollutants; (iv) stressor-induced developmental plasticity in reptiles and fish.
Meera Navaratnam I completed my BSc in Zoology at the University of Guelph. For my MSc, I am currently investigating the presence of constitutive neurogenesis in adult hagfish brains, and how it is affected by specific environmental stressors. I utilize a variety of histological and immunohistological techniques to determine areas of neurogenic activity in both Myxine glutinosa and Eptatretus stoutii. Ultimately, this research aims to gain a better understanding of the evolutionary timeline of adult neurogenesis in vertebrates.
Michael Campbell I am currently in the 4th year of my BSc in Zoology here at the University of Guelph. I am currently studying the effects of the synthetic estrogen, ethinylestradiol, upon neurogenesis in mature zebrafish (Danio rerio). I am excited to further expand my understanding on how environmental contaminants effect biological and environmental systems.
Sean Avey Sept 2017 – Nov 2019 “Diluted bitumen exposure in juvenile Atlantic and sockeye salmon: Whole-animal, metabolic and molecular responses.”