Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3416-B3
Where
Water Body Cayuga Lake
Latitude and Longitude 42.61752, -76.64342
Segment Lakeshore Segment Southeast 1: Elmwood Point to Lake Ridge Point
County Cayuga
Extent Widespread
When
Bloom Reported July 09, 2025 11:29 AM
Bloom Sampled July 09, 2025 11:29 AM
Microscopic Examination
What
Bloom Genera [1]
Microscopy Present Dominant

Bloom Chemistry
[1] Genera - plural of genus, a category of classification in biology that ranks between the family level and the species level. Because there are many different species of bacteria that are difficult to distinguish, it is more useful to classify bacteria by genus rather than species.
[2] Microcystin
Map of HAB event
Bloom Description

Volunteer Reports: Filamentous green algae on surface plus blue green algae colonies below water surface observed in 4-8 feet of water from boat. Went ashore and water quality was significantly better in 0-2 ft of water. Some clumps of brown floating masses of algae stirred up from bottom sediments while wading in deeper water. Area used for unregulated swimming. Open water HAB

Weather
Weather
Wind speed
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Water Temp
Air Temp