Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3435-B22
Where
Water Body Cayuga Lake
Latitude and Longitude 42.54719, -76.59748
Segment Lakeshore Segment Southwest 7: Taughannock Falls State Park
County Tompkins
Extent Small Localized (few properties)
When
Bloom Reported October 17, 2025 09:10 AM
Bloom Sampled October 17, 2025 09:10 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: Same place as on 10/15, some very thin areas plus clumps mixed in with floating eel grass, spread out along the south shore of the marina. 3 dead fish in the area. HAB persisting for weeks.

Weather
Weather
Wind speed
Wind direction
Water Temp
Air Temp