Species at Risk
There has been a dramatic decline in freshwater fish biodiversity globally, and this is true in Canada as well. Losses of freshwater fishes have important consequences to Canadians. Freshwater fish provide forage for other biota, drive ecosystem properties, and are indicators of aquatic ecosystem health. We study the declines of freshwater fishes, including species like: Arctic Grayling, Athabasca Rainbow Trout (Endangered), Bull Trout (Special Concern), Carmine Shiner (Threatened), Lake Sturgeon (Saskatchewan River, COSEWIC: Endangered), Plains Sucker (Milk River Population - Threatened), Redside Dace (Endangered), Rocky Mountain Sculpin (Eastslope Population - Endangered), Western Silvery Minnow (Threatened), Westslope Cutthroat Trout (AB Population - Threatened), among many others. Click on the species photos, articles or news items to learn more about some of the research we are conducting on species at risk! Note: * Lab members.
Articles from Lab
Theis, S.* Castellanos D.A., Hamann A. and M.S. Poesch. (2023) Small-bodied fish species from western United States will be under severe water stress by 2040. Conservation Science and Practice: e12856.
Medinski, N.A.*, Maitland, B.M.*, Jardine, T.D., Drake, D.A.R. and M.S. Poesch (2022) A catastrophic coal mine spill in the Athabasca River watershed induces isotopic niche shifts in stream biota including an endangered rainbow trout ecotype. Canadian Journal for Fisheries and Aquatic Sciences.
Pereyra, P.E.R, Hallwas, G., Poesch, M.S. and R. Silvano (2021) ‘Taking fishers’ knowledge to the lab’: an interdisciplinary approach to understand fish trophic relationships in the Brazilian Amazon. Frontiers in Ecology and Evolution.
Castaneda, R.A., Ackerman, J.D., Chapman, L.J., Cooke, S.J., Cuddington, K., Dextrase, A., Jackson, D.A., Koops, M.A., Krkosek, M., Loftus, K., Mandrak, N.E., Martel, A.L., Molnar, P., Morris, T.J., Pitcher, T.E., Poesch, M.S., Power, M., Pratt, T.C., Reid, S.M., Rodriguez, M.A., Rosenfeld, J., Wilson, C., Zanatta, D.T. and D.A.R. Drake. (2021) Approaches and research needs for advancing the protection and recovery of imperilled freshwater fishes and mussels in Canada. Canadian Journal of Fisheries and Aquatic Sciences.
Banting, A.*, Vinebrooke, R., Taylor, M., Carli, C. and M.S. Poesch. (2021) Impacts of a regionally-native predator on littoral macrobenthos in fishless mountain lakes: implications for assisted colonization. Conservation Science and Practice 3(2): e344.
News from the Lab
Brazil Trip with tracking change (Blog posts from Dr. Mark Poesch)
Dr. Poesch gives presentation on impacts of Prussian Carp to freshwater fishes at the Alberta Invasive Species Council meeting in LaCombe, AB.
The Fisheries and Aquatic Conservation Lab attends the Canadian Science Advisory Meeting on Offsetting in Ottawa