Assessing watermilfoil invasion effects on native macrophyte communities in North American lakes using a novel approach for macrophyte samplingShannon Smith, Frithjof C. Küpper, Clare Trinder and Vasilis LoucaKnowl. Manag. Aquat. Ecosyst., 422 (2021) 1DOI: https://doi.org/10.1051/kmae/2020043