Identification Guides This page includes many identification guides for aquatic plant and animal life found in the Great Lakes region.
Lake Classification There are three main classifications of lakes in Michigan.
Measuring Eutrophication A guide to the measurements scientists and lake monitoring volunteers use to determine the rate of eutrophication.
Dissolved Oxygen and Temperature A guide to the indicators of lake health.
Aquatic Plant Mapping Information on the importance of aquatic plants to lake health.
Lake Phenomena Field Guide to Aquatic Phenomena from the University of Maine. The guide includes information about interesting lake characteristics including water color and “stuff” in the water.