FINAL REPORT - International Joint Commission

ANNEX 2
Table A-1: Lake Ontario/Upper St. Lawrence River Environmental Performance Indicators
Region PI Group PI Description PI Metrics Researchers Significance Certainty Sensitivity
Lake Ontario Vegetation Wetland Meadow Marsh Community - ha Wilcox, Ingram 5 5 5
Total surface area, supply-based (Lake Ontario)
Lake Ontario Fish Low Veg 18C - Spawning habitat supply (Lake Ontario) ha-days Minns, Doka, Chu, 2 3 4
Bakelaar, Leisti
Lake Ontario Fish High Veg 24C - Spawning habitat supply (Lake Ontario) ha-days Minns, Doka, Chu, 3 3 4
Bakelaar, Leisti
Lake Ontario Fish Low Veg 24C - Spawning habitat supply (Lake Ontario) ha-days Minns, Doka, Chu, 2 3 4
Bakelaar, Leisti
Lake Ontario Fish Northern Pike – Young-of-year (YOY) recruitment index index Minns, Doka 3 4 5
(Lake Ontario)
Lake Ontario Fish Largemouth Bass - YOY recruitment index (Lake Ontario) index Minns, Doka 3 4 4
Lake Ontario Birds Virginia Rail (RALI) - Median reproductive index index DesGranges, 4 4 5
(Lake Ontario) Ingram, Drolet
Lake Ontario Species at Least Bittern (IXEX) - Median reproductive index index DesGranges, 5 2 5
risk (bird) (Lake Ontario) Ingram, Drolet
Lake Ontario Species at Black Tern (CHNI) - Median reproductive index index DesGranges, 5 3 5
risk (bird) (Lake Ontario) Ingram, Drolet
Lake Ontario Species at Yellow Rail (CONO) - Preferred breeding habitat ha Lantry, Schiavone 2 2 5
risk (bird) coverage (Lake Ontario)
Lake Ontario Species at King Rail (RAEL) - Preferred breeding habitat coverage ha Lantry, Schiavone 2 2 5
risk (bird) (Lake Ontario)
Upper Fish Low Veg 18C - Spawning habitat supply ha-days Minns, Doka, Chu, 2 3 4
SL River (Upper St. Lawrence) Bakelaar, Leisti
Upper Fish High Veg 24C - Spawning habitat supply ha-days Minns, Doka, Chu, 3 3 4
SL River (Upper St. Lawrence) Bakelaar, Leisti
Upper Fish Low Veg 24C - Spawning habitat supply ha-days Minns, Doka, Chu, 2 3 4
SL River (Upper St. Lawrence) Bakelaar, Leisti
Upper Fish Northern Pike - YOY recruitment index (USL) index Minns, Doka 3 4 5
SL River
Upper Fish Largemouth Bass - YOY recruitment index (USL) index Minns, Doka 3 4 4
SL River
Upper Fish Northern Pike - YOY net productivity grams Farrell 2 4 5
SL River (USL - Thousand Islands) (wet wt.)/ha
Upper Birds Virginia Rail (RALI) - Median reproductive index index DesGranges, 3 3 5
SL River (Lake St. Lawrence) Ingram, Drolet
Upper Mammals Muskrat (ONZI) - House density in drowned #/ha Farrell, Toner 4 4 5
SL River river-mouth wetlands (Thousand Islands area)
22 Options for Managing Lake Ontario and St. Lawrence River Water Levels and Flows