Information from head returns of clipped fish has shown the majority to be american fish.More so in the last few years.and larger.The americans are concerned about this and have sent scientists here to study why.Since I discovered this,I have stopped sending in heads.It isn't worth the pin you get.All info is shared across the border.Remember a few years ago when they made a size limit for winter fish.A minimum and a maximum.This was to let american fish get through.If you want to keep fishing,DON'T send in heads or give info to creel surveys!
it must be something in the water