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Cyanoblooms (Cyanobacteria)

Cyanobloom in Charles River Basin along the Esplanade parkland, Boston, MA USA
Green streaks on the surface suggest alignment of filaments or filament bundles by currents Photo contributed by Roger Frymire

Cyanobloom in Lake Quannapowitt (Saugus River Watershed), Wakefield, MA USA
Photo contributed by Roger Frymire

Cyanobloom in Lake Quannapowitt (Saugus River Watershed), Wakefield, MA USA
Photo contributed by Roger Frymire

Cyanobloom on Bow Lake, Northwood, NH USA
Photo by NH Dept. of Environmental Services posted online

Microcystis aeruginosa bloom
Photo by Florida Fish and Wildlife Commission, posted online

Cyanobloom in a pool of the Umngeni River, South Africa
Photo from the South African River Health Programme posted online

A cyanobacterial bloom on Little Rock Lake, Benton County, MN, USA

Photo by Amy Robak, posted online

Cyanobloom on Liberty Lake, WA, USA
The urban lake has had blooms since the 1960s.
Photo posted online

Cyanobloom in a canal in Germany
Photograph posted online

Senescing cyanobloom on Patterson Lake (48^o27'22.81"N, 120^o14'44.47"N) near Winthrop, WA USA. Photograph from the Dept. of Ecology, State of Washington USA posted online

Cyanobloom on Dane Muldoon Algae Pond
Photograph posted online

Jar full of cyanobacteria scooped from the surface of Pinto Lake, CA USA
36^o57' N, 123^o46' W, elevation 45 m.
Photograph posted online

Cyanobloom on Big Stone Lake, MN USA (45o22'35.11"N, 96o21'33.74"W, elevation 331m). Photograph by Mary Koeth-Baker posted online

Cyanobloom on Little Stone Lake, MN USA (45^o43'36.71"N, 94^o09'48.58"W, elevation 309m)

Cyanobacteria concentrated from Lake Mendota, WI USA
Photograph by Jeff Miller, Univ. of Wisconsin, posted online

Cyanobacterial bloom on Zaca Lake, CA USA (34^o 46" 39' N, 120^o 02" 23' W)
Photograph from Alan Wilson Laboratory, Auburn University, Auburn AL USA posted online

Microcystis-dominated bloom on Lake Erie, 2011, covering 67% of the lake area.
Photograph by Peter Essick posted by National Geographic.

Microcystis-dominated bloom on Lake Erie, Laurentian Great Lakes USA/Canada, September 2009, on the southeast shore of Pelee Island, Ontario (western area of Lake Erie). Photograph by Tom Archer, posted online.

Microcystis-dominated bloom on Lake Erie, Laurentian Great Lakes USA/Canada, August 2014
Photograph published without credit to the photographer at Reuters, in HNGN posted online.

Bloom of filamentous cyanobacteria, mainly Scytonema, Stigonema, Tolypothrix and Lyngbya, 10 September 2020. Drought conditions
From Blackey Cove of Lake Winnipesaukee, Moultonboro NH, USA.
Photography: Amanda Murby McQuaid, NH DES

Bloom of filamentous cyanobacteria, mainly Scytonema, Stigonema, Tolypothrix and Lyngbya, 10 September 2020. Drought conditions
From Spofford Lake, Chesterfield NH, USA
Photography: Spofford Lake Association
From Amanda Murby McQuaid, NH DES

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