Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3443-B14
Where
Water Body Cayuga Lake
Latitude and Longitude 42.71474, -76.75197
Segment Lakeshore Segment Northwest 1: Sheldrake Point to Deans Cove
County Seneca
Extent Large Localized
When
Bloom Reported October 25, 2025 10:00 AM
Bloom Sampled October 25, 2025 10:00 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

Community member reported: Arrived to find the HAB during a brief window of sun on an otherwise cloudy day. Air temp 46 degrees. Intermittent rain over the past 24 hours.

Weather
Weather
Wind speed
Wind direction
Water Temp
Air Temp