Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3482-B8
Where
Water Body Cayuga Lake
Latitude and Longitude 42.7829, -76.767916
Segment Lakeshore Segment Northwest 3: Deans Cove to Schuyler Creek
County Seneca
Extent Large Localized
When
Bloom Reported September 12, 2025 01:45 PM
Bloom Sampled September 12, 2025 01:45 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 reports: temperature increased from 52 degrees to 82 degrees from 0600 to time of observance; water calm; bright sunshine. The probable HAB from 9/11 was long gone when this one appeared on 9/12. 9/11 HAB was streaky =bright green stripes; this was very different looking.

Weather
Weather Sunny
Wind speed
Wind direction
Water Temp
Air Temp