Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3435-B21
Where
Water Body Cayuga Lake
Latitude and Longitude 42.54754, -76.59735
Segment Lakeshore Segment Southwest 7: Taughannock Falls State Park
County Tompkins
Extent Small Localized (few properties)
When
Bloom Reported October 15, 2025 09:45 AM
Bloom Sampled October 15, 2025 09:45 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: This is a bloom all along the southern side of the marina at Taughannock, seems to have been blown there by the wind from the Northwest, and is mixed in with the floating eel grass as well as in open water. Persisting HAB for weeks.

Weather
Weather
Wind speed
Wind direction
Water Temp
Air Temp