Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3435-B27
Where
Water Body Cayuga Lake
Latitude and Longitude 42.54736, -76.59772
Segment Lakeshore Segment Southwest 7: Taughannock Falls State Park
County Tompkins
Extent Small Localized (few properties)
When
Bloom Reported October 27, 2025 09:49 AM
Bloom Sampled October 27, 2025 09:49 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 reported: Very clear water, thin but widespread along the shore of the marina. Some small clumps around the floating eel grass, thicker around the shoreline of the marina, with lots of specks as far as I could see towards the center. HAB present for at least a month.

Weather
Weather
Wind speed
Wind direction
Water Temp
Air Temp