Appendix1.Sources of data

Comparison / Period / Frequency / Location (comment) / Source
SLR water temperature time series / 1918–1938 / Monthly / Montreal Atwater water treatment plant (mean from reports) / City of Montreal
1948–1979 / Daily / Montreal Atwater water treatment plant (from graphs) / City of Montreal
1993–1998 / Weekly / Montreal Atwater water treatment plant (from reports) / City of Montreal
1980–2007 / Weekly / Montreal Charles-J. DesBaillets water treatment plant (from reports and electronic files) / City of Montreal
1992–2002 / Daily / Longueuil water treatment plant (from electronic files) / City of Longueuil
SLR water level / 1918–2007 / Daily / Montreal Harbour Jetty No. 1 (station No. 15520) / DFO, 2007
1918–2007 / Daily / Pointe-Claire (station No. 15330) / DFO, 2007
1918–2007 / Daily / Sorel (station No. 15930) / DFO, 2007
SLR discharge / 1932–2007 / Daily / Montreal(LaSalle station No. 15410, 02OA016, reconstructed discharge) / Bouchard & Morin, 2000; Morin, personal communication
1987–2001 / Daily / Cornwall, Moses-Sanders dam / Ontario Power Generation, 2007
1987–2001 / Daily / QuebecCity (reconstructed discharge from the sum of all sources contributing to SLR discharge down to Québec) / Rondeau et al., 2000; Rondeau, personal communication
Air temperature / 1968–2001 / Daily / Dorval,Montreal-Pierre-ElliottTrudeauInternationalAirport(station No.7025250,mean daily values from hourly measurements) / DOE, 2007
Large-scale climatic
systems / 1950–2007 / Monthly / North Atlantic Oscillation Index /
1948–2007 / Monthly / Northern Oscillation Index /
1918–2007 / Monthly / Southern Oscillation Index /
Warm and cool years in SLR / Warm: 1953, 1975, 1995, 1998, 19992001 Cool: 1950, 1951, 1963, 1972, 1976, 1978 / Daily / Years when mean water temperature was ≥1 s.d. either above (“warm years”) or below (“cool years”) the 1919–2007 mean, and for which daily water temperature measurements were available, for Montreal-area treatment plants (Atwater or Longueuil) / City of Montreal
City of Longueuil
Longitudinal variations in water temperature in the SLR water mass / 1987–2001 / Daily / km 0 - Cornwall, Moses-Saunders dam / OntarioPower Generation, 2007
2001 / Daily / km 125 - Longueuil treatment plant / City of Longueuil
2001 / Daily / km 235 - Trois-Rivières buoy SC-65 / DFO, 2003
1987–2001 / Daily / km 360 - Sainte-Foy treatment plant / City of Québec
Transversal gradients
of water temperature
and conductivity
to identify water
mass / 1994 / Weekly / River cross-section in narrow corridor between
Repentigny and Varennes (10 stations) / Hudon, 2000; Hudon, unpubl. data
2004 / Monthly / River cross-section in wide fluvial LakeSaint-Pierre (Transect No. 5, 18 stations) / Hudon & Carignan, 2008; Hudon, unpubl. data
Thermal budget of fish residing or migrating between water masses / 1992–2001 / Daily / Longueuil treatment plant (SLR water mass) / City of Longueuil
1992–2001 / Daily / Pointe-Claire treatment plant (for the Ottawa River
water mass) / City of Pointe-Claire
Pike YCSI / 1968–1976
1991–2001 / Yearly / Index of year-class strength for Pike in SLR (Iles de Boucherville, Rivière aux Pins, LakeSaint-Pierre) / Massé et al., 1991, Armellin & Méthot,2004
Yellow perch YCSI / 1982–1989
1991–1998 / Yearly / Index of year-class strength for yellow perch
(LakeSaint-Pierre) / Mailhot & Dumont, 2003
Carp mortality during spawning in 2001 / May–June
2001 / Casual
observations / Observations and reports of live and dead carp in SLR / Mingelbier et al., 2001
Environmental variables inducing carp mortality during spawning / May–June
2001 / Every 15
minutes / Air temperature at LakeSaint-Pierre / Hudon, unpubl. data
Water temperature in a wetlands and in the navigation channel in LakeSaint-Pierre / Hudon, unpubl. data
Hourly / Water level at LakeSaint-Pierre
(Curve No. 2, station No. 15975) / DFO, 2007

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