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��ater color <br />High: Clear. <br />Medium: Faint brown or iaint green. <br />Low: Bright green or dark brown. This can be due to amount of nutrients and <br />suspended solids in a water body. Bright green water is the result of an increased <br />level of nutrients within the system_ Nutrients can be con�ributed by decayir�g organic <br />material or excessivc fertilizcr use. Algae grow rapidly in a nutrient rich environment <br />and green colored water is a result. Brown water, on the other E�and, is the result of <br />sediments being carried to the waterbody. Sediments can originate from eroding <br />uplands and from excessive roadway sand. <br />Evidence of algal blooms <br />As previously discussed, algac grows rapidly :n nutrient-rich aquatic environments. <br />When algae decay in water, oxygen is cor►sumed. This can be dangerous for aquatic <br />organisms. <br />High: No algal colonies (0-25% cover) <br />Medium: Few colonies {25-75% cover} <br />Low: Dense al�al colonies (75-100%} <br />Evidence of macrophytes (emergent or submerged pond vegetation) <br />Macrophytes improve pond-settling efficiency and utilize dissolved nutrients. They also <br />provide cover for zooplankton that can help keep the al�ae population down. <br />High: Dense macrophytes (75-i00% coverage} <br />M�dium: Moderate (25-75%n coverage) <br />Low: No macrophytes (Q-25%n covera�e}. <br />Ciry of,Roseuille 1�3 <br />Parks Nat«ral Reso�irce Management <br />