Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3482-B13
Where
Water Body Cayuga Lake
Latitude and Longitude 42.78467, -76.76759
Segment Lakeshore Segment Northwest 3: Deans Cove to Schuyler Creek
County Seneca
Extent Widespread
When
Bloom Reported October 17, 2025 11:00 AM
Bloom Sampled October 17, 2025 11:00 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: No wind, temperature 50 degrees, partly cloudy. This HAB was all along the shore for more than a mile. The HAB stayed until at least 4pm (i had to leave then and could no longer monitor). The HAB also stayed along the shore even when the winds picked up to about 8mph later in the day.

Weather
Weather
Wind speed
Wind direction
Water Temp
Air Temp