• Due to little natural reproduction and the resulting dependance on stocking, reductions in rainbow trout were not evident in Michigan waters of Lake Huron.
	• No evidence of declines in rainbow trout runs are evident in Main Basin tributaries in Ontario waters.
	• Possibly Michigan planted fish are sustaining numbers which are therefore not dependent on natural reproduction.
	• Recent marking of rainbow trout  by Michigan will soon determine the level of natural reproduction that is occurring in Ontario rivers on the Main Basin.