Harmful Algal Bloom Report

Bloom Code 25-3419-B4

Where

Water Body Cayuga Lake
Latitude and Longitude 42.54074, -76.54951
Segment Lakeshore Segment Southeast 3: Salt Point Natural Area
County Tompkins
Extent Widespread or Lake-wide: The HAB is as far as you can see, and seems to affect the entire waterbody, or most or all of the shoreline.

When

Bloom Reported September 29, 2025 03:30 PM
Bloom Sampled September 30, 2025 03:30 PM
Microscopic Examination September 30, 2025

What

Bloom Genera [1]

Microscopy Present Dominant
Dolichospermum
Microcystis

Bloom Chemistry

Total Microcystin and Nodularins (EPA 546) [2] 441.0 ug/L
Total Chlorophyll a 711.0 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

Bloom Description

2025 PRIORITY SITE: Salt Point Natural Area- identified by Tompkins County Whole Health as a sample-collection site. Volunteer reported: 1/2 north along shoreline and into open water. Mostly calm, slight north breeze, clear water otherwise.

Weather

Weather Sunny
Wind speed
Wind direction
Water Temp
Air Temp