Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3473-B5
Where
Water Body Cayuga Lake
Latitude and Longitude 42.6299, -76.68831
Segment Lakeshore Segment Southwest 9: Frontenac Point to Lively Run
County Seneca
Extent Small Localized (few properties)
When
Bloom Reported September 08, 2025 04:15 PM
Bloom Sampled September 08, 2025 04:15 PM
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: 66 degrees, 4 mph N winds, sunny. Very pleasant day. Earlier water was all clear. The main outbreak was in Lively Run creek. There were some HABs. Noticeable at the property just south of us. But the rest of the Interlaken beach area had nothing.

Weather
Weather
Wind speed
Wind direction
Water Temp
Air Temp