7928-R5_NewGloucester_2020-2021_AnnualReport_Web

SABBATHDAY LAKE | 2020 Water Quality Report

Gloeotrichia is a genus of planktonic freshwater cyanobacteria. In an effort to further understand why blooms of Gloeotrichia are occurring on some lakes throughout New England and to assess which lakes may be or become vulnerable to these blooms, Maine DEP has included a presence or absence box on the lake profile sampling form. Here, lake monitors can record the presence of Gloeotrichia if applicable and the density of the colony. The presence of Gloeotrichia in the water column was not noted on any of the 2020 sampling dates.

Photo: Very calm waters on a nearly windless, sunny sampling day, August 10, 2020. Four adult loons were observed during the sampling efforts.

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