This is your direct source to the goods sold at http://www.yelp.ca/biz/mikes-fish-market-toronto. Can't tell you which came first, but my money is on this one.
Hidden away in an industrial like area is this nondescript shop that sells fresh fish! You got fish, lobster, variety of seafood and some frozen goods. They don't have much oyster selection, which is probably fine I guess cause perhaps it's just not their specialty.
You got a constant flow of people driving up here to get some seafood, not like out of the door lineups, shoulder-on-shoulder fighting to get someone's attention. And there are plenty of fish mongers behind the counter to help you.
My favorite so far, the smoked salmon! It doesn't taste frozen cause it probably isn't frozen.
It's closed on Sundays, operates normal business hours for the most part from what I remember, this means closed at like 4 or 5 on a Saturday.