Harmful Algal Bloom (HAB) Event Information
Bloom Code
25-3441-B2
Where | |
---|---|
Water Body | Cayuga Lake |
Latitude and Longitude | 42.6657, -76.6989 |
Segment | Lakeshore Segment Southwest 10: Lively Run to Sheldrake Point |
County | Seneca |
Extent | Small Localized (few properties) |
When
Bloom Reported | September 24, 2025 07:00 PM |
Bloom Sampled | September 24, 2025 07:00 PM |
Microscopic Examination | September 26, 2025 |
What
Bloom Genera [1]
Microscopy | Present | Dominant |
---|---|---|
Microcystis |
Bloom Chemistry
Total Chlorophyll a | 58.4 ug/L |
Total Microcystin and Nodularins (EPA 546) [2] | 36.8 ug/L |
[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
[2] Microcystin
Map of HAB event
Bloom Description
2025 PRIORITY SITE, Zone #3441: Sheldrake Point- identified by Seneca County Health Department as a sample-collection site. Volunteer reported: Very hard to pickup in the photos due to lowlight (collecting sample just after sunset), and the bloom didn’t seem very dense. It was apparent in person though.
Weather
Weather | |
Wind speed | |
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Water Temp | |
Air Temp |



