FINAL REPORT - International Joint Commission

for the stochastic simulations. In brief, it was found that regulation, as represented by Plan 1958-DD,
clearly tends to minimize the long-term abundance of meadow marsh and emergent marsh, which provide
important habitat for fish, birds and other fauna. Plan E performs best with respect to maximizing
meadow marsh area in the long-term. Plan B + performs significantly better than Plan D + . Plan A + performs
worst with respect to long-term restoration of meadow marsh area that has been lost under regulation.
FINAL REPORT
Figure 40: Lake Ontario meadow marsh frequency distribution for the 50,000-year
stochastic simulation
Emergent Marsh Surface Area (ha)
Emergent Marsh Surface Area (acres)
Meadow Marsh Surface Area (ha)
Meadow Marsh Surface Area (acres)
Figure 41: Lake Ontario emergent marsh frequency distribution for the 50,000-year
stochastic simulation
Options for Managing Lake Ontario and St. Lawrence River Water Levels and Flows
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