Ben G. Wallace
BSc Honors Candidate, Faculty of Forestry and Environmental Management, University of New Brunswick
Hometown: Nasonworth, New Brunswick
Faculty of Forestry and Environmental Management,
University of New Brunswick
P.O. Box 4400
BSc (Hons) in Environment and Natural Resources (Water Resources Management) Candidate 2012
Awards and Scholarships
Natural Sciences and Engineering Research Council (NSERC) Undergraduate Student Research Award 2011
Supervisors: Dr. Allen Curry, Dr. Marie Clement, Dr. Simon Courtney, and Dr. Tommi Linnansaari
Evaluation of a recovery strategy for Atlantic salmon (Salmo salar): effects of stocking hatchery-reared parr on wild salmon parr.
Stocking hatchery-raised Atlantic salmon (Salmo salar) juveniles (parr) is a common strategy employed in aiding the recovery of this species. Unfortunately, the effect of stocking hatchery-reared salmon parr on wild populations remains poorly understood. Concerns exist that increased aggressiveness exhibited by hatchery-reared parr may drive wild parr into marginal habitats, resulting in reduced survival rates. Furthermore, a more rapid decline in body condition caused by non cost-effective behavior among hatchery-reared parr may result in decreased survival rates among these fish during the winter months as compared to wild parr.
This research will consist of two parts, the first being to determine if stocking parr results in a change in the habitat utilization and behavior of the wild parr. Secondly, the survival rates of both wild and hatchery-reared parr will be studied both in the wild and in a semi-natural environment. Passive Integrated Transponder (PIT) tag technology will be used to track the movement and survival of both hatchery and wild parr while underwater observations will be used to determine if the introduction of hatchery-reared parr results in an increase in antagonistic behavior. It is important to better understand these effects in order to increase our confidence in this recovery strategy and to minimize its potential negative effects on wild populations.