Eastmain-1-A/Sarcelle/Ruper t Hydroelectric Development I N F O R M AT I O N B U L L E T I N NUMBER 1 JUNE 2010
Rupert River Ecological Instream Flow Regime
416 m3/s
Between Cold fall - End of October and Warm fall - Early November
45 days
267 m3/s 20 to 30 days
127 m3/s
2
3
1
Walleye
2
Longnose sucker
3
White sucker
4
Sturgeon
5
Lake whitefish
3 days
4
When Mesgouez Lake at 450 m3/s Not before early May
Winter
127 m3/s
Spring
3 days
1
9 d ays
5 days
127 m3/s
5
Early July
Summer
Early October
Fall
Spring spawning, egg incubation and emergence - mid-May to early-July Intensive feeding period early June to early Oct.
Fall spawning - early Oct. to early Nov. Egg incubation and emergence early Nov. to end of May Intensive feeding period - early June to early Oct.
Winter
To better reproduce the natural cycle of the river, the flow rates are controlled. Therefore, the spawning and hatching periods in spring and in fall are not disturbed. To protect the fish habitat and fishing downstream of the Rupert River’s dam, a spillway allows the instream flow rates to be modulated.
For a better understanding of how hydroelectricity affects the land.