Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3440-B3
Where
Water Body Cayuga Lake
Latitude and Longitude 42.6617, -76.6988
Segment Lakeshore Segment Southwest 10: Lively Run to Sheldrake Point
County
Extent Small Localized (few properties)
When
Bloom Reported October 17, 2025 02:45 PM
Bloom Sampled October 17, 2025 02:45 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 reported: sunny day, slight breeze, foam present about 120 feet long, about 12 feet wide at widest point, streaky in parts. Only on north side of beach on property divided by dock.

Weather
Weather
Wind speed
Wind direction
Water Temp
Air Temp