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i would like information re: pike minnows impact on native speicies, details about bounty placed on them and rules re: methods of capture

Answer

Northern pikeminnow (squawfish) are a native specie to Idaho.  They are highly predatory once they reach 8 - 10" and tend to prey more on soft-ray fish such as rainbow trout, cutthroat, salmon and steelhead smolts (juveniles).  This makes sense when you consider that all of these species are native to Idaho and they've evolved together through the years.