Research interests
Research in the laboratory focuses on the following general areas of fish physiology;
- The importance of endogenous (body size, exercise) and exogenous (hypoxia, temperature) factors on the physiological response to exercise in fish (mainly salmonids, sturgeon).
- The effect of temperature on the respiratory physiology of fish.
- The effect of ploidy on the physiology of fish.
- Aerobic metabolic fuel use in larval fish.
- Effectiveness of Catch and Release Angling in Atlantic salmon.
- Growth and development in fish (sturgeon, haddock)
- Physiology and Behaviour of Atlantic and Shortnose Sturgeon
(in collaboration with Dr. M.K. Litvak (UNBSJ)
Most of these studies are being carried out by graduate students (see below).
Brendan Galloway (Recent graduate - MSc, Feb. 2000)
Brendan Galloway's MSc research focused on the post-exercise recovery process in juvenile Atlantic salmon. In particular, Brendan compared the effects of acute versus chronic temperature changes on the post-exercise response in juvenile Atlantic salmon. Brendan is currently a PHD student at UNB.
Craig Hyndman (Recent graduate - MSc, June 2001)
Craig Hyndman's research
examined the importance of cell size (triploid vs. diploid fish)
on the physiological response to various stresses (e.g., exercise,
temperature) in brook trout. Given that triploid fish grow quickly
and are widely used in the aquaculture industry, these experiments
provided baseline information about how these fish cope with
typical aquaculture stressors.
John Martell (PhD
student)
John's research focuses
on the effects of temperature on muscle development, growth
and biochemistry in haddock. His research is aimed at improving
our understanding of the role of rearing temperature on muscle
growth in haddock. John is co-supervised by Dr. E. Trippel (DFO)
and Dr. J. Kieffer.
Susan Tyler (BSc;
summer NSERC student)
To assess the effectiveness
of catch and release angling, Susan Tyler has carried out laboratory
work to determine the impact that air exposure has on the post-exercise
recovery process in Atlantic salmon.
Andrea Wakefield
(Recent graduate - MSc, Jan. 2002)
Andrea's research
examined the effects of temperature and exercise on the respiratory
and metabolic physiology of various strains of Atlantic salmon.
We are currently comparing the physiology of different strains
of salmon to determine their suitability for restocking into
local rivers.
Dan Baker (MSc student)
In collaboration with
Dr. M. Litvak (UNBSJ), Dan Baker and I are investigating the
behavioural and physiological responses of Shortnose and Atlantic
sturgeon to various levels of hypoxia. Dan plans to use both
whole body (oxygen consumption) and cellular (metabolite measurements)
approaches in his thesis.
Ashley Wood (BSc
Honours Project; summer NSERC student)
For her honours thesis,
Ashley is investigating the haematological responses of shortnose
and Atlantic sturgeon to low oxygen levels. She has also worked
on the effects of temperature on the post-exercise response
in salmonids.
Opportunities
exist in the laboratory for new graduate and honours students.
Funding for the various research projects is provided by NSERC,
the Sir James Dunn Wildlife Fund, and Olin Fellowships from
the Atlantic Salmon Federation.