Harmful Algal Blooms Dashboard
A one-stop information resource to learn about harmful algal blooms (HABs), risks to people and pets, and how you can help
This site was created to be a resource for residents and visitors of Otsego County on harmful algal blooms, their risks, and the research and mitigation efforts happening in our county. Representatives from 15+ local agencies, municipalities, and organizations came together in May 2023 to better coordinate our efforts in addressing harmful algal blooms. Our partners include but are not limited to: Otsego County, Otsego County Conservation Association, Otsego Lake Association, Suny Oneonta Biological Field Station, and the Canadarago Lake Improvement Association.
What are Harmful Algal Blooms?
Harmful algal blooms (HABs) are the rapid growth of algae or cyanobacteria that can cause harm to people, animals, or the local ecology. Harmful algae or cyanobacteria can look like foam, scum, paint, or mats on the surface of water and can be different colors. These blooms can produce toxins that make people and animals sick. Blooms occur in fresh water, such as lakes and rivers, and salt water, such as oceans or bays (CDC 2021).
Algae and cyanobacteria are simple organisms that live in the water. Algae and cyanobacteria can rapidly grow out of control, or “bloom,” when water is warm, slow-moving, and full of nutrients. Many types of algae do not produce toxins and not all visible algae is harmful. Explore the "how to identify" page or visit DEC's Harmful Algal Blooms Photo Gallery.
HABs may look like green dots, clumps or globs on the water surface. Location not known. Photo Credit: DEC
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