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AQUATIC MACROPHYTE COMMUNITY INDEX (AMCI) <br />The Aquatic Macrophyte Community Index (AMCI) is a multipurpose tool developed to assess the biological <br />quality of aquatic plant communities in lakes. It can be used to specifically analyze aquatic plant communities or <br />as part of a multi -metric system to assess overall lake quality for regulatory, planning, management, educational, <br />or research purposes. The components of the index are maximum depth of plant growth; percentage of the <br />littoral zone vegetated; Simpson's diversity index; the relative frequencies of submersed, sensitive, and exotic <br />species; and taxa number. The higher the score the better. <br />62 <br />60 <br />58 <br />56 <br />54 <br />52 <br />50 <br />48 <br />46 <br />44 <br />AMCI score <br />2016 2017 2018 2019 2020 2021 202222 2023 2024 <br />PAGE 3 <br />264 <br />