Not only does it form the basis of the aquatic food web, algae have the power to put a lid on bovine burps. Algae can also be made into a substitute for fossil fuels, and is a heathy and tasty food supplement for humans. But from mid-summer through early fall, certain algae can spread toxins through freshwater lakes and rivers, posing a risk to people, pets, fish, and more. Be on the lookout in northern New York State this summer for harmful algal blooms (HABs).
The term algae itself has no strict definition. It may refer to any number of photosynthetic organisms, many of which are not even closely related. Everything from single-cell microbes to giant kelp measuring 150 feet long can be labeled as algae. Worldwide, there are more than 5,000 species of algae, and nearly all of them are beneficial.