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Great Lakes Water Life Photo Gallery
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Most algae are capable of forming visible 'blooms' under the proper growing conditions. This page includes the Great Lakes species which commonly form visible scums floating on the surface in the nearshore zones. It does not include species which form tangled mats. Mat or scum? - run your fingers through it (wear gloves if toxins suspected) if it coats like paint it's a scum, if it lifts basically in one piece (like hair) it's a mat.
Naturally occuring organic matter in the water can sometimes produce a foam; this is not an algae bloom, though it may be associated with a dying bloom. Pollen, bacteria, calcium carbonate precipitate, and oil can produce slicks on the water surface which look similar to an algae scum.
Great Lakes Algae Species List - Macroscopic AlgaeDivision Chlorophyta - Green Algae
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Based on: G.W. Prescott.
1962. Algae of the Western Great Lakes Area. Wm. C. Brown Co.,
Inc. * # E Great Lakes Aquatic Nonindigenous Species List. Ds Dm Dh De Do - Dominant algae species of each Lake - Per H Brown and Manny. 1983. Nearshore Plankton of Hammond Bay, Lake
Huron. Additional taxonomic placements based on: |
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