Abstract
The International Joint Commission has recently completed a five-year study (2000–2005) to review the operation of structures controlling the flows and levels of the Lake Ontario – St. Lawrence River system. In addition to addressing the multitude of stakeholder interests, the regulation plan review also considers environmental sustainability and integrity of wetlands and various ecosystem components. The present paper outlines the general approach, scientific methodology and applied management considerations of studies quantifying the relationships between hydrology and wetland plant assemblages (% occurrence, surface area) in Lake Ontario and the Upper and Lower St. Lawrence River. Although similar study designs were used across the study region, different methodologies were required that were specifically adapted to suit the important regional differences between the lake and river systems, range in water-level variations, and confounding factors (geomorphic types, exposure, sediment characteristics, downstream gradient of water quality, origin of water masses in the Lower River). Performance indicators (metrics), such as total area of wetland in meadow marsh vegetation type, that link wetland response to water levels will be used to assess the effects of different regulation plans under current and future (climate change) water-supply scenarios.
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References
Baedke, S. J. and Thompson, T. A.: 2000, ‘A 4,700-year record of lake level and isostasy for Lake Michigan’, J. Great Lakes Res. 26, 416–426.
Breiman, L., Friedman, J., Ohlsen, R. and Stone, C.: 1984, Classification and Regression Trees, Wadsworth, Belmont, CA.
Bunn, S. E. and Arthington, A. H.: 2002, ‘Basic principles and ecological consequences of altered flow regimes for aquatic biodiversity’, Environ. Manage. 30, 492–507.
CEAA, Canadian Environmental Assessment Act: 1992, http://laws.justice.gc.ca/en/C-15.2/text.html.
Carpentier, A.: 2003, ‘La régularisation du Saint-Laurent’, Le Naturaliste Canadien 127, 102–113.
COSEWIC: Committee on the Status of Endangered Wildlife in Canada, 2004, and Species at Risk Act (SARA), available at http://www.sararegistry.gc.ca/the_act/default_e.cfm http://www.cosewic.gc.ca/eng/sct5/index_e.cfm.
DFO, Department of Fisheries and Oceans: 1998, ‘Habitat Conservation and Protection Guidelines’, Second Edition (1998), published by Communications Directorate, Fisheries and Oceans, Ottawa, Ontario, Canada. K1A OE6. DFO/5859, available at http://www.dfo-mpo.gc.ca/canwaters-eauxcan/infocentre/guidelines-conseils/guides/fhrmguide/index_e.as.p.
EC and OMNR, Environment Canada and Ontario Ministry of Natural Resources: 2003, ‘Ontario Great Lakes Coastal Wetland Atlas (1983–1997)’.
EC, Environment Canada: 2003, Digital Elevation Model for St. Lawrence River Bed and Floodplain, Lake St. Pierre Area. Canadian Meteorological Service, Environment Canada-Quebec Region, Sainte-Foy, Quebec, Canada.
Grant, R. E. and Associates: 2004, ‘Fish Habitat Changes – Thousand Islands, Middle Corridor, and Lake St. Lawrence’, St. Lawrence River Discussion Papers. Available at http://www.glfc.org/lakecom/loc/habitat.pdf.
Hellsten, S., Marttunen, M., Visuri, M., Keto, A., Partanen, S. and Järvinen, E. A.: 2002, ‘Indicators of sustainable water level regulation in northern river basins: A case study from the River Paatsjoki water system in northern Lapland’, Large Rivers 13, 353–370.
Hill, N. M., Keddy, P. A. and Wisheu, I. C.: 1998, ‘A hydrological model for predicting the effects of dams on the shoreline vegetation of lakes and reservoirs’, Environ. Manage. 22, 723–736.
Hudon, C.: 1997, ‘Impact of water-level fluctuations on St. Lawrence River aquatic vegetation’, Can. J. Fish. Aquat. Sci. 54, 2853–2865.
Hudon, C.: 2004, ‘Shift in wetland plant composition and biomass following low-level episodes in the St. Lawrence River: Looking into the future’, Can. J. Fish. Aquat. Sci. 61, 603–617.
Hudon, C.: 2005, ‘Managing St. Lawrence River Discharge in Times of Climatic Uncertainty: How Water Quantity Affects Wildlife, Recreation and the Economy’, Proceedings of the 69th North American Wildlife and Natural Resources Conference, Spokane, WA. USA. 20 pp.
Hudon, C., Gagnon, P., Amyot, J.-P., Létourneau, G., Jean, M., Plante, C., Rioux, D. and Deschênes, M.: 2005, ‘Historical changes in herbaceous wetland distribution induced by hydrological conditions in Lake Saint-Pierre (St. Lawrence River, Quebec, Canada)’, Hydrobiologia 539, 205–224.
IJC, International Joint Commission: 1999, ‘Plan of Study for Criteria Review in the Orders of Approval for Regulation of Lake Ontario-St. Lawrence River Levels and Flows’, Report prepared for the International Joint Commission by the St. Lawrence River – Lake Ontario plan of study team. Available at http://www.iic.org/boards/islrbc/pos/pose.html.
Jean, M. and Bouchard, A.: 1991, ‘Temporal changes in wetland landscapes of a section of the St. Lawrence River, Canada’, Environ. Manage. 15, 241–250.
Jean, M., Létourneau, G., Lavoie, C. and Delisle, F.: 2002, ‘Les milieux humides et les plantes exotiques en eau douce’, Bureau de coordination de Saint-Laurent Vision 2000, Sainte-Foy, Quebec, Canada. 8 pp.
Keddy, P. A.: 2002, ‘Wetland Ecology-Principles and Conservation’, 2e ed. Cambridge Studies in Ecology. Cambridge University Press, Cambridge. 618p.
Lavoie, C., Jean, M., Delisle, F. and Létourneau, G.: 2003, ‘Exotic plant species of the St. Lawrence River Wetlands: A spatial and historical analysis’, J. Biogeogr. 30, 537–549.
Lee, H. T., Bakowsky, W. D., Riley, J., Bowles, J., Puddister, M., Uhlig, P and McMurry, S.: 1998, ‘Ecological Land Classification for Southern Ontario: First Approximation and Its Application’, Ontario Ministry of Natural Resources, South central Science Section, Science Development and Transfer Branch. SCSS Field Guide FG-02.
Magnuson, J. J., Webster, K. E., Assel, R. A., Bowser, C. J., Dillon, P. J., Eaton, J. G., Evans, H. E., Fee, E. J., Hall, R. I., Mortsch, L. R., Schindler, D.W. and Quinn, F. H.: 1997, ‘Potential effects of climate changes on aquatic systems: Laurentian Great Lakes and Precambrian Shield Region’, Hydrol. Proc. 11, 825–871.
Marttunen, M., Hellsten, S. and Keto, A.: 2001, ‘Sustainable development of lake regulation in finnish lakes’, Vatten 57, 29–37.
Milburn, D., MacDonald, D. D., Prowse, T. D. and Culp, J. M.: 1999, ‘Ecosystem Maintenance Indicators for the Slave River Delta, Northwest Territories, Canada’, in: Y. A. Pykh, D. E. Hyatt and R. J. M. Lenz (eds), Environmental Indices Systems Analysis Approach, EOLSS Publishers Co. Ltd, Oxford, U.K., pp. 329–348.
Morin, J. and Bouchard, A.: 2001, ‘Les bases de la modélisation du tronçon Montréal/Trois-Rivières’, Scientific Report RS-100, Meteorological Service of Canada. Hydrology, Environment Canada-Quebec Region, Sainte-Foy, Quebec, Canada.
Morin, J. and Leclerc, M.: 1998, ‘From pristine to present state: Hydrology evolution of Lake Saint-François, St. Lawrence River’, Can. J. Civ. Eng. 25, 864–879.
Nilsson, C. and Keddy, P. A.: 1988, ‘Predictability of change in shoreline vegetation in a hydroelectric reservoir, northern Sweden’, Can. J. Fish. Aquat. Sci. 45, 1896–1904.
Nilsson, C. and Svedmark, M.: 2002, ‘Basic principles and ecological consequences of changing water regimes: riparian plant communities’, Environ. Manage. 30, 468–480.
Patch, S. P. and Busch, W.-D. N. (eds.): 1984, ‘The St. Lawrence River – Past and Present. A Review of Historical Natural Resource Information and Habitat Changes in the International Section of the St. Lawrence River’, Prepared by the U.S. Dept. of the Interior, Fish and Wildlife Service, Cortland Field Office, for the U.S. Corps of Engineers, Buffalo District, Buffalo, NY, USA, 259 pp.
Petts, G. E.: 1984, ‘Impounded Rivers-Perspectives for Ecological Management’, Wiley-Interscience, John Wiley and Sons, NY.
Poff, N. L., Allan, J. D., Bain, M. B., Karr, J. R., Prestegaard, K. L., Richter, B. D., Sparks, R. E. and Stromberg, J. C.: 1997, ‘The natural flow regime-A paradigm for river conservation and restoration’, Bioscience 47, 769–784.
Prowse, T. D. and Conly, M.: 1996, ‘Impacts of Flow Regulation on the Aquatic Ecosystem of the Peace and Slave rivers’, Northern River Basins Study Synthesis Report No. 1, Published by the Northern River Basins Study, Edmonton, Alberta, Canada. http://www3.gov.ab.ca/env/water/nrbs/nrbs.html.
Reavie, E. D., Smol, J. P., Carignan, R. and Lorrain, S.: 1998, ‘Diatom paleolimnology of two fluvial lakes in the St. Lawrence River: A reconstruction of environmental changes during the last century’, J. Phycol. 34, 446–456.
Toner, M. and Keddy, P. A.: 1997, ‘River hydrology and riparian wetlands: A predictive model for ecological assembly’, Ecol. Appl. 7, 236–246.
USFWS: United States Fish and Wildlife Service: 1973, The Endangered Species Act. Available at http://endangered.fws.gov/esa.html.
Villeneuve, S. and Quilliam, L.: 2000, ‘Les risques et les conséquences environnementales de la navigation sur le Saint-Laurent’, Environment Canada – Quebec Region, Conservation Branch, St. Lawrence Centre, Scientific and Technical report ST-188, 174 p.
Ward, J. V., Tockner, K. and Schiemer, F.: 1999, ‘Biodiversity of flood plain river ecosystems: Ecotones and connectivity’, Reg. Rivers Res. Manage. 15, 125–139.
Wilcox, D. A.: 1995, ‘The role of Wetlands as Nearshore Habitat in Lake Huron’, in: M. Munawar, T. Edsall and J. Leach (eds), The Lake Huron Ecosystem: Ecology, Fisheries, and Management, Ecovision World Monograph Series, S. P. B. Academic Publishing, The Netherlands, pp. 223–245.
Wilcox, D. A.: 2004, ‘Implications of hydrologic variability on the succession of plants in Great Lakes wetlands’, Aquat. Ecosyst. Health Manage. 7, 223–231.
Wilcox, D. A. and Meeker, J. E.: 1991, ‘Disturbance effects on aquatic vegetation in regulated and unregulated lakes in northern Minnesota’, Can. J. Bot. 69, 1542–1551.
Wilcox, D. A. and Meeker, J. E.: 1995, ‘Wetlands in Regulated Great Lakes’, in: E. T. LaRoe, G. S. Farris, C. E. Puckett, P. D. Doran and M. J. Mac (eds), Our Living Resources: A Report to the Nation on the Distribution, Abundance, and Health of U.S. Plants, Animals, and Ecosystems, U.S. DOI, National Biological Service, Washington, DC, USA. pp. 247–249.
Wilcox, D. A. and Whillans, T. H.: 1999, ‘Techniques for restoration of disturbed coastal wetlands of the Great Lakes’, Wetlands 19, 835–857.
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Hudon, C., Wilcox, D. & Ingram, J. Modeling Wetland Plant Community Response to Assess Water-Level Regulation Scenarios in the Lake Ontario – St. Lawrence River Basin. Environ Monit Assess 113, 303–328 (2006). https://doi.org/10.1007/s10661-005-9086-4
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DOI: https://doi.org/10.1007/s10661-005-9086-4