Dr Cosima Porteus
NSERC Postdoctoral Fellow


I am a fish physiologist and I’m interested in how fish sense, interact with and respond to their environment, linking environmental changes or challenges to whole animal physiology, behaviour and ecology.  My early work has focused on the effects of low oxygen (hypoxia) on the cardio-respiratory responses of fish and its effects on development. This has sparked an interest in the neural control of breathing in fish.  My PhD focused on the roles different neurotransmitters play in oxygen sensing and the role of oxygen chemoreceptors in water and air breathing in fish. More recently, I have become interested on the effects of climate change on fish physiology, particularly the effects of ocean acidification on olfaction and sound detection. I am currently a post-doctoral fellow working under the supervision of Dr. Rod Wilson. My current project also involves a close collaboration with Dr. Steve Simpson, an expert in the effects of anthropogenic noise on fish.

Broad research specialisms:

  • Fish olfaction
  • Fish behaviour
  • Ocean acidification
  • Oxygen sensing
  • Immunohistochemistry
  • Respiratory physiology
  • Hypoxia
  • Fish and amphibian development


2006-2012 PhD, Zoology, University of British Columbia, British Columbia
2004-2006 MSc, Interative Biology, University of Guelph, Ontario
2000-2004 BSc (Hon), Marine and Freshwater Biology, University of Guelph, Ontario

Contact details

Tel+44 (0) 1392 725853
AddressGeoffrey Pope Building
University of Exeter
Stocker Road

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