Dr. Lance F.W. Lesack

Professor
Departments
Geography & Biological Sciences
Simon Fraser University

SFU - Northern Studies Committee

PhD - Limnology & Hydrology - University of California, Santa Barbara, 1989
BSc - Zoology & Statistics - University of Manitoba, 1977

7123 RCB, Simon Fraser University
8888 University Drive, Burnaby, BC V5A 1S6
Tel: 778-782-3326 -- Lab: 778-782-5633 -- Fax: 778-782-5841
Email: LLesack@sfu.ca

Select links below for information of interest:
Page last updated: Nov 8, 2009

Research Interests - Limnology and biogeochemistry of inland waters

Key words: limnology, biogeochemistry, catchment hydrology, aquatic ecosystems, floodplain lakes, large river ecology, river floodplains, lake hydrology, arctic ecosystems, tropical ecosystems, global change, lake districts

IPY-SCARF - International Polar Year - Study of Canadian Arctic River-delta Fluxes

See - Featured Article - Journal Cover Image - Image Caption

Mackenzie Delta - Research on the Mackenzie River Delta, western Canadian arctic

Graduate Students - Opportunities for graduate studies & summer research assistants !!!

Sample Publications -

• Tank, S., L. Lesack, and D. McQueen. 2009. Elevated pH regulates bacterial carbon cycling in lakes with high photosynthetic activity. Ecology 90:1910-1922.
• Tank, S., L. Lesack, and R. Hesslein. 2009. Northern delta lakes as summertime CO2 absorbers within the arctic landscape. Ecosystems 12:144-157. doi:10.1007/s10021-008-9213-5.
• Squires, M., L. Lesack, R. Hecky, S. Guildford, P. Ramlal, and S. Higgins. 2009. Primary production and carbon dioxide metabolic balance of a lake-rich arctic river floodplain: Partitioning of phytoplankton, epipelon, macrophyte, and epiphyton production among lakes of the Mackenzie Delta. Ecosystems 12:853-872. doi:10.1007/s10021-009-9263-3.
• Graydon, J., C. Emmerton, L. Lesack, and E. Kelly. 2009. Mercury in the Mackenzie River delta and estuary: Concentrations and fluxes during open-water conditions. Science of the Total Environment 407:2980-2988. doi:10.1016/j.scitoevn.2008.12.060.
• Emmerton, C., L. Lesack, and W. Vincent. 2008. Mackenzie River nutrient delivery to the Arctic Ocean and effects of the Mackenzie Delta during open water conditions. Global Biogeochemical Cycles 22: GB1024, doi:10.1029/2006GB002856.
• Lesack, L., and P. Marsh. 2007. Lengthening plus shortening of river-to-lake connection times in the Mackenzie River Delta respectively via two global change mechanisms along the arctic coast. Geophysical Research Letters 34: L23404,doi:10.1029/2007GL031656.
• Spears, B., and L. Lesack. 2006. Bacterioplankton production, abundance, and nutrient limitation among lakes of the Mackenzie Delta (western Canadian Arctic). Can. J. Fish. Aquat. Sci. 63:845-857.
• Squires, M., L. Lesack, and D. Huebert. 2002. The influence of water transparency on the distribution and abundance of macrophytes among lakes of the Mackenzie Delta, western Canadian arctic. Freshwater Biol. 47:2123-2135.
• Lesack, L., P. Marsh, and R. Hecky. 1998. Spatial and temporal dynamics of major solute chemistry among Mackenzie Delta lakes. Limnol. Oceanogr. 43:1530-1543.
• Lesack, L., and J. Melack. 1996. Nutrient balance of a rainforest catchment in the central Amazon Basin: Implications for nutrient budgets in tropical rainforests. Biogeochemistry 32:115-142.
• Lesack, L., and J. Melack. 1995. Flooding hydrology and mixture dynamics of lakewater derived from multiple sources in an Amazon floodplain lake. Water Resour. Res. 31:329-345.

  More publications: Sorted geographically, of course