Tanya Prystay

AlumniM.Sc. Students - AlumniTechnical Staff - Alumni  (May 2016 - May 2018)

Thesis topic: Using heart rate loggers to determine smallmouth bass parental care energy investment


Personal Profile

Tanya’s research focuses on using heart rate as a proxy for measuring fish energy investment under various stress conditions. Her previous work involved describing sockeye salmon heart rate profiles after a catch-and-release fishing event. Now her research concentrates on describing spawning energy investment with a focus on smallmouth bass (Micropterus dolomieu) in the Ontario Rideau Lakes, and sockeye salmon (Onchorhynchus nerka) in British Colombia. Spawning success is crucial for individual fitness and population success. Smallmouth bass undergo parental care behaviour where the male cleans the nest and defends the eggs from predators until the offspring are able to defend themselves. Contrastingly, mature sockeye salmon migrate long distances from salt water to fresh water spawning grounds, where they spawn and die before the eggs become fry. Smallmouth bass and sockeye salmon play an important economical, ecological, and cultural role in Canada. Although both species exhibit different spawning behaviours, both spawning methods are highly energetically costly. Understanding the magnitude of the cost of spawning can be further used to understand the effects of other abiotic and biotic stressors on spawning success.

Lab Publications (5)

  • Comparative Biochemistry and Physiology Cover Image

    Prystay, T. S., Lawrence, M. J., Zolderdo, A. J., Brownscombe, J. W., de Bruijn, R., Eliason, E. J., and Cooke, S. J. 2019. Exploring relationships between cardiovascular activity and parental care behavior in nesting smallmouth bass: a field study using heart rate biologgers.  Comparative Biochemistry and Physiology A. 234:18-27.

  • Davidsen, J. G., Dong, H., Linné, M., Andersson, M. H., Piper, A., Prystay, T. S., Hvam, E. B., Thorstad, E. B., Whoriskey, F., Cooke, S. J., Sjursen, A. D., Rønning, L., Netland, T. C. & Hawkins, A. D. 2019. Effects of sound exposure from a seismic airgun on heart rate, acceleration and swimming depth in Atlantic cod and saithe. Conservation Physiology. 7(1): coz020; doi:10.1093/conphys/coz020.

  • Halsey LG, Green JA, Twiss SD, Arnold W, Butler PJ, Cooke SJ, Grémillet D, Ruf T, Hicks O, Minta KJ, Prystay TS, Wascher CAF & V Careau. 2019. Flexibility, variability and constraint in energy management patterns across vertebrate taxa revealed by long-term heart rate measurements. Functional Ecology. 33:260-272.

  • Prystay, T.S., E.J. Eliason, M.J. Lawrence, M. Dick, J.W. Brownscombe, D.A. Patterson, G.T. Crossin, S.G. Hinch, and S.J. Cooke. 2017. The influence of water temperature on sockeye salmon heart rate recovery following simulated fisheries interactions. Conservation Physiology. 5(1); doi:10.1093/ conphys/cox050..

  • Transactions of the American Fisheries Society

    Prystay, T.S., C.K. Elvidge, W.M Twardek, J.M. Logan, C.H. Reid, S.H. Clarke, J.G. Foster, E.L.L. Cooke and S.J. Cooke. 2017. Comparison of the behavioural consequences and recovery patterns of largemouth bass exposed to MS-222 or electrosedation. Transactions of the American Fisheries Society. 146:556–566.