Janet McConnell checking samples of the river's pH to determine the level of lampricide to use in this treatment.

Janet McConnell checking samples of the river's pH to determine the level of lampricide to use in this treatment.

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Author: USFWS Midwest RegionSource: USFWS Midwest Region on Flickr.com

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facinvasionfisherylampreyinvasive speciesfisheries and aquatic conservationsea lamprey

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