I just got back from a recent fly in trip to Ontario. We have gone to this lake for 5 years and never caught a “blue walleye.” This year however we caught a few hundred of them. They have a very distinct blue/green stripe across the top half of their body and the tail fin and dorsal fin are all blue. Some of them have very bright coloring. We asked the owners of the resort we fished and they were somewhat surprised that we caught so many of them but they said they did not know what caused this. They even mentioned that the biologists up there are confused. Has any one heard of this, or know what causes this?
englunmb
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