Gloeotrichia, a type of cyanobacteria.

Detailed Description
Gloeotrichia, a type of cyanobacteria that can produce microcystin, in a water sample collected from Kabetogama Lake, Voyageurs National Park (by Viviana Mazzei, USGS).
USGS and academic scientists examined cyanotoxins and cyanobacterial communities from recurring algae blooms in Kabetogama Lake in Voyageurs National Park. They documented the presence of 7 understudied toxins and identified correlations among toxins and cyanobacteria, revealing potential competitive relations among cyanobacteria.
Sources/Usage
Public Domain.