True kokanees are established in freshwater .
The kokanees of Lake Shannon may be the by - product of sockeye salmon and coho salmon that spawned in tributaries of the lake -- including Sulphur Creek and Thunder Creek -- either via natural spawining gravels or artificially constructed ones .
True kokanees are established in freshwater , but the kokanees of Lake Shannon may be the by - product of sockeye salmon and coho salmon that spawned in tributaries of the lake -- including Sulphur Creek and Thunder Creek -- either via natural spawining gravels or artificially constructed ones .