Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3443-B15
Where
Water Body Cayuga Lake
Latitude and Longitude 42.72989, -76.76218
Segment Lakeshore Segment Northwest 1: Sheldrake Point to Deans Cove
County Seneca
Extent Small Localized (few properties)
When
Bloom Reported October 29, 2025 10:48 AM
Bloom Sampled October 29, 2025 10:48 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

Community member reported: It was a sunny and cool morning after a very chilly overnight & cool previous few days.

Weather
Weather
Wind speed
Wind direction
Water Temp
Air Temp