Bob,
Sorry, I forgot to answer you last question. In the lower 48 here in USA they are quite common although many fish farms push hybrids (a cross between a bluegill and a green sunfish).However they can be purchased at some farms.
I would wager that they may be difficult to find for purchase in Quebec and may be even looked at with disdain by the locals. It's even possible that your government has restrictions on their import. At least from my experience, bluegills are considered trashfish in parts of Canada, and even the northeast, and sometimes ignored in parts of the south.
I don't know why as the big ones are a worth adversary, are a blast to catch with light tackle and a fly rod, and taste mighty fine.
