Jason Robert Treberg
Photo of Jason Robert Treberg

Assistant Professor

Office W483 Duff Roblin
(204) 474-8122

Research Description

Animals are in many ways a product of their environment. Especially at the level of metabolism, where biology and chemistry meet and molecules are broken down and reassembled to meet the needs of cellular function.

In animals, mitochondria are central to the conversion of metabolites for use in the energy demanding processes required for survival and growth. Environmental characteristics, such as temperature, water availability and quality of food, influence how an animal must budget its available energy.

My research studies how external factors can influence the demands placed on physiological and biochemical systems. I am also interested in how the capacity to respond at the ‘small scale’, for example at the mitochondrial level, may influence whole animal responses to external challenge.

Ongoing Projects

  1. The balance between mitochondrial bioenergetics, reactive oxygen species production and consumption
  2. Strategies for non-lethal evaluation of wild fish population physiology and biochemical disruption
  3. Dietary sulfur amino acid (methionine) intake and oxidative metabolism

Graduate Student Opportunities

Highly motivated students interested in embarking on graduate level studies on i) comparative mitochondrial biochemistry or ii) the influence of environmental factors like temperature or food quality/quantity on metabolism are encouraged to contact me directly by email. Please include some details of your research interests and relevant experience.

Undergraduate Opportunities

I am always interested in discussing potential research opportunities with motivated undergraduate students.

Research Interests

Physiology, Comparative metabolic biochemistry, mitochondrial metabolism and function, nutritional modulation of physiology and energy balance, reactive oxygen species, envrionmental influences on metabolism, Representative experimental species include: teleost and elasmobranch fishes, rodent models of nutritional biochemistry, molluscs (freshwater, marine and terrestrial)

Recent Publications

  • Benjamin C Kissinger, Jason Bystriansky, Nick Czehryn, Eva C Enders, Jason Treberg, James D Reist, Emily Whitmore, W Gary Anderson (2017). Environment-phenotype interactions: Influences of brackish-water rearing on lake trout (Salvelinus namaycush) physiology. Environmental Biology of Fishes, 1-18.
  • D Munro, JR Treberg (2017). A radical shift in perspective: mitochondria as regulators of reactive oxygen species. J. Exp. Biol. 220, 1170-1180.
  • Aida Adlimoghaddam, Michael J O'Donnell, Jay Kormish, Sheena Banh, Jason R Treberg, David Merz, Dirk Weihrauch (2016). Ammonia excretion in Caenorhabditis elegans: physiological and molecular characterization of the rhr-2 knock-out mutant. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 195, 46-54.
  • D Munro, S Banh, E Sotiri, N Tamanna, JR Treberg (2016). The thioredoxin and glutathione-dependent H 2 O 2 consumption pathways in muscle mitochondria: Involvement in H 2 O 2 metabolism and consequence to H 2 O 2 efflux assays. Free Radical Biology and Medicine 96, 334-346.
  • JR Treberg, B Speers-Roesch (2016). Does the physiology of chondrichthyan fishes constrain their distribution in the deep sea?. J. Exp. Biol. 219, 615-625.

→ See more publications

Recent story about our work and CRC profile

http://news.umanitoba.ca/peeling-the-mitochondrial-onion-one-layer-at-a-time/

http://www.chairs-chaires.gc.ca/chairholders-titulaires/profile-eng.aspx?profileId=2803

Upcoming Seminars

General seminar: Wesley Ogloff, MSc defense: “Climate change-related shifts in species interactions and diet in an Arctic marine ecosystem” — Tuesday, July 31 at 9 a.m., 304 Biological Sciences.

General seminar: Elise Couillard, MSc Defense: “Black-tailed prairie dog (Cynomys ludovicianus) awareness of neighbours' vigilance is spatially explicit” — Wednesday, August 1 at 8:45 a.m., 304 Biological Sciences.

General seminar: Muriel Magnaye, MSc Defense: “Growth and post-spawning survival in capelin (Mallotus villosus) on the northeast coast of Newfoundland” — Wednesday, August 15 at 11 a.m., 304 Biological Sciences.

General seminar: Gabrielle Grenier, MSc Defense: “Seasonal patterns of growth in Arctic Charr (Salvelinus alpinus L.); differences between morphs of Cumberland Sound populations” — Thursday, August 23 at noon, 304 Biological Sciences.