Researcher Profile

Craig W. Hawryshyn

Job Title: Professor
Employer: University of Victoria
Place of Birth: Winnipeg, Manitoba, Canada
Public School attended: Springfield Heights Elementry School, Winnipeg, MB
High School attended: Rivereast Collegiate, Winnipeg, MB
Further Education: University of Manitoba (B.Sc.), University of Alberta (M.Sc.), University of Waterloo (Ph.D.), Cornell University (P.D.F.).
Geographic focus of research: British Columbia, North Pacific Ocean, Hawaii Institute for Marine Biology, Coconut Island, Kanohe Bay, Ohau, Hawaii

Brief synopsis of current research:
My research interests focus on the sensory mechanisms used by Pacific Salmon to guide their migration. Salmon have the capability of detecting ultraviolet - polarized light and this information is used to determine the position of the sun when the sun maybe obscured or when the salmon are navigating in the open ocean. Knowing the position of the sun is a major navigational cue for animals as the trajectory of the sun over the sky varies with geographic position. My lab members and I have been examining this capability in different species of salmon, particularly how life history strategy characteristics of a species may influence visual function and hence their navigational ability.



Recent Publications:

Douglas, R.H. and C.W. Hawryshyn. 1990. Behavioural studies of vision. In "The visual system of fish" (eds. R.H. Douglas and M.B.A. Djamgoz). Croom Helm, London.

Hawryshyn, C.W. 1992. Polarization vision in fishes. American Scientist. 80: 164-175.

Novales-Flamarique, I. and C.W. Hawryshyn. 1994. Spectral characteristics of salmonid migratory routes. Can. J. Fish. Aquat. Sci. 50: 1706-1716.

Hawryshyn, C.W. 1998. Vision in fishes. In "Fish Physiology". (Ed. D. Evans). CRC Press. pp. 345-374.

Beaudet, L. and C.W. Hawryshyn. 1999. Ecological aspects of vertebrate visual ontogeny. In "Adaptive Mechanisms in the Ecology of Vision". (Archer etal, eds.). Kluwer Academic Publishers. pp. 413-437.

I choose a career in aquatic sciences because, since childhood, I was fascinated with the world of fishes: how they see and respond to sensory cues in the aquatic environment, what they forage on and when, and how they make 3000-5000 km migrations back to their natal streams within 10 M of where they were hatched.