Limnology at the landscape level: Integrating Multiple Stressors and Scales

Session Organizer: Jerome Marty, Mohamed Mohamed
Date/Time:  January 4, 13:20 – 17:10 & January 5, 11:00 – 15:00
Location: Salon E

Summary Information

Aquatic ecosystems are recognized as hotspots for ecosystem processes supported by a remarkable diverse set of species. Depending on land use and characteristics of the watersheds, loadings from terrestrial sources as carbon, nutrients and contaminants have contributed or altered the structure and function of freshwater ecosystems. Presentations in this session will explore the linkages between terrestrial and aquatic environments influencing the functioning of freshwater ecosystems.


Friday, January 4

13:20 - 13:40: Investigating Ecosystem Responses to Multiple Interacting Anthropogenic Stressors in McLaughlin Bay (Oshawa, Ontario)
Hoskin, G.N.*; Korosi, J.B.; Kirkwood, A.E.; Thienpont, J.R.

13:40 - 14:00: Diatom community assemblages are controlled by light availability in deep, low-DOC lakes in northeastern Ontario.
Gushulak, C.A.C., and Cumming, B.F.

14:00 - 14:20: The Response of Colonizing and Established Communities of Periphyton Across a Land-use Gradient in the Lake Simcoe Watershed.
MacKay, S.E.*, Kirkwood, A.E.

14:20 - 14:40: Flood-influenced lakes as archives of natural and anthropogenic trace metal deposition in the oil sands region: an approach to define pre-industrial baseline conditions.
Klemt, W.*; Hall, R.I.; Wolfe, B.B.

14:40 - 15:00: Landscape-scale drivers of nutrient concentrations in natural and artificial water bodies of the Northern Great Plains.
Finlay, K*; Webb, J.R.; Wissel, B.; Leavitt, P.R.; Baulch, H.M.; Simpson, G.L.; Haig, H.A; Hodder, K.R.

15:00 - 15:30: Nutrition Break (Ballroom 2-3)

15:30 - 15:50: Drivers of water quality changes in North American lakes over the past 40 years.
Mahdiyan, O.*, Molot, L., Sapna, S.

15:50 - 16:10: Differential impacts of climatic variability and land-use on the 20th century algal pigment abundance among and within two temperate estuaries of Atlantic Canada.
Patoine, A.*; Karmakar, M.; Kurek, J.

16:10 - 16:30: Paleolimnological assessment of nutrient and predation controls on cladoceran abundance and composition in four small fisheries lakes, interior British Columbia.
Mushet, G. R.*; Laird, K. R.; Leavitt, P. R.; Cumming, B. F.

16:30 - 16:50: Fish growth rates and lake sulphate control mercury levels in Ninespine stickleback (Pungitius pungitius) on the Arctic Coastal Plain of Alaska.
Burke, S.M.*; Branfireun, B.A.; Laske, S.M.; Zimmerman, C.E.; Swanson, H.K.

16:50 - 17:10: Heavy rainfall and increased phosphorus concentrations drive early onset bloom in an Ontario reservoir.
Larsen, M.L.*; Venkiteswaran, J.J.; Baulch, H.M.; Simon, D.F. and Sauvé, S.

Saturday, January 5

11:00 - 11:20: Reconstructing cultural eutrophication in lake sediments using sterols.
Gallant, L.R.*; Kimpe, L.E.; Eickmeyer, D.C.; Blais, J.M.

11:20 - 11:40: Impact of Increased Thermokarst Activity on Polycyclic Aromatic Compound (PAC) Accumulation in Sediment of Lakes in the Hydrocarbon-Rich Uplands Adjacent to the Mackenzie Delta, NT, Canada.
Eickmeyer, D.C.*; Thienpont, J.R., Blais, J.M.

11:40 - 12:00: Multiscale drivers of phytoplankton communities and their species' traits.
Loewen, C.J.G.*; Vinebrooke, R.D.; Zurawell, R.W.

12:00 - 13:20: Lunch

13:20 - 13:40: Isoscapes and limnoscapes of the Peace-Athabasca Delta: A foundation for hydrolimnological monitoring.
Remmer, C.R*; Neary, L.K; Owca, T; Wolfe B.B; Hall, R.I.

13:40 - 14:00: Pan-Canadian picture of lakes contributions to the global GHGs emissions: preliminary results from the first Lake Pulse campaign in Eastern Canada.
Kim, Jihyeon*; Prairie, Yves

14:00 - 14:20: Are the Great Lakes TOO great for using chironomids to reconstruct past changes in deepwater hypolimnetic oxygen? A cautionary tale from Lake Erie.
Quinlan, R.*; Perlov, D.A.; Reavie, E.D.

14:20 - 14:40: Long-term effects of wildfire in boreal headwater catchments on riparian-stream linkages: implications for forest management.
Musetta-Lambert, J.L.*; Muto, E.A.; Kreutzweiser, D.P.; Sibley, P.K.

14:40 - 15:00: Examining the long-term algal responses to metal contamination within the context of multiple environmental stressors: case studies of lakes around Yellowknife, NT.
Sivarajah, B.*, Perrett, M., Stewart, E.M., Korosi, J.B., Cheney, C.L., Thienpont, J.R., Kimpe, L.E., Blais, J.M., and Smol, J.P.