. Controlling aquatic vegetation with triploid grass carp. Carp; Aquatic weeds; Eutrophication; Aquatic weeds. Chara nitella. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wiley, Michael J; Tazik, Pamela P; Sobaski, Stephen T; Illinois. Natural History Survey Division. Champaign, Ill. : Illinois Natural History Survey


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