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 (11)

  • Comparative Biochemistry and Physiology Cover Image

    Ekström, A., T.S. Prystay, A.E.I. Abrams, A. Carbajal Brossa, P.E. Holder, A.J. Zolderdo, E. Sandblom and S.J. Cooke.  In Press.  Impairment of branchial and coronary blood flow reduces reproductive fitness, but not cardiac performance in paternal smallmouth bass (Micropterus dolomieu).  Comparative Biochemistry and Physiology A.  00:000-000.

  • Kraskura, K., E.A. Hardison, A.G. Little, T. Dressler, T.S. Prystay, B. Hendriks, A.P. Farrell, S.J. Cooke, D.A. Patterson, S.G. Hinch and E.J. Eliason. 2021. Sex-specific differences in swimming, aerobic metabolism, and recovery from exercise in adult coho salmon (Oncorhynchus kisutch) across ecologically relevant temperatures. Conservation Physiology. 9(1):coab016.

  • Little A.G., E. Hardison, K. Kraskura, T. Dressler, T.S. Prystay, B. Hendriks, J.N. Pruitt, A.P. Farrell, S.J. Cooke, D.A. Patterson, S.G. Hinch and E.J. Eliason. 2020. Reduced lactate dehydrogenase activity in the heart and suppressed sex hormone levels are associated with female-biased mortality during thermal stress in Pacific salmon. Journal of Experimental Biology. 223:214841.

  • MacLean, K., T.S. Prystay, M.J. Lawrence, A.J. Zolderdo, L.F.G. Gutowsky, E. Staaterman, A.J. Gallagher and S.J. Cooke. 2020. Going the distance: Influence of distance between boat noise and nest site on the behaviour of paternal smallmouth bass. Water, Air & Soil Pollution. 231:1-11.

  • Physiological and Biochemical Zoology

    Little, A.G., T. Dressler, K. Kraskura, E. Hardison, B. Hendriks, T. Prystay, A.P. Farrell, S.J. Cooke, D.A. Patterson, S.G. Hinch and E.J. Eliason. 2020. Maxed out: Optimizing accuracy, precision and power for field measures of maximum metabolic rate in fishes. Physiological and Biochemical Zoology. 93:243-254.

See All 11 Publications by Tanya Prystay