Welcome to the laboratory of Prof Martin Krkosek, Canada Research Chair in Marine Epidemiology. We are based in the Department of Ecology and Evolutionary Biology at the University of Toronto. Our research is in population ecology and its applications to epidemiology, fisheries, and conservation. We work on marine fishes, marine mammals, aquatic parasites, mathematical models, and statistical analysis.

DOWNLOAD: Letter to the Honourable Joyce Murray, Minister of Fisheries, Oceans, and the Canadian Coast Guard by 16 scientists concerning DFO Science Response Report #2022/045 on the issue of sea lice on wild juvenile salmon and salmon farms in British Columbia.

The signatories of the letter include 13 professors and five Fellows of the Royal Society of Canada. We raise seven concerns with the DFO Report’s conclusion that sea lice on wild juvenile salmon are not associated with salmon farms in British Columbia. The DFO Report is available here. Our letter expresses concerns, along with supporting documentation, of selective reporting of non-significant results, improper peer review, disregard of published scientific evidence, technical flaws in the analysis, and erroneous interpretation of the report’s own statistical results.

News coverage of the letter: The Narwhal, Vancouver Sun, Comox Valley News


The MK Lab conducts fieldwork in the territories of the Musgamagw Dzawada’enuxw, Mamalilikulla and ‘Namgis First Nations on the south Central Coast of BC in partnership with the Salmon Coast Field Station, located amongst the islands above. Learn more about SCFS research, programs, and community.