Bob -- by "speckled trout" could you perhaps have meant brook trout (brook charr)?

Brookies are fall spawners. The eggs overwinter, and fry generally emerge the next spring. I looked up brook trout in Scott and Crossman's Freshwater Fishes of Canada. They said that hatching takes 100 days at 5 C, and 50 days at 10 c. However, upper lethal temp for developing eggs is about 11.7 C. I'd guess winter stream temperatures are below 5 C in Quebec. :-) Once the eggs hatch, the fry stay in the redd (gravel nest) until their yolk sac is absorbed.

Brookies are more likely to be able to reproduce in a pond than rainbows. Apparently, a small inflow or small spring is generally enough to allow them to reproduce.

If you're not talking about brookies, then please ignore this. :-)

Dave

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From Bob Lusk: Dr. Dave Willis passed away January 13, 2014. He continues to be a key part of our Pond Boss family...and always will be.