When it comes to allowing dogs to swim in lakes, pet owners should make sure to avoid lakes with a green-scum layer on top. When it’s very hot, lakes have an increased likelihood of developing a thick layer of algal bloom. While not all types of algae are poisonous to dogs, blue-green algae are extremely toxic to them.

Also called cyanobacteria, blue-algae are microscopic bacteria that thrive in freshwater ponds, streams, lakes, and brackish water systems. The bacteria produce toxins called anatoxins and microcystins, which are dangerous. These toxins are actually poisonous not only to dogs but also to cats, horses, cattle, and even humans. This is an important reason why you shouldn’t allow your pet dog or child to drink or swim in water that is potentially contaminated with blue-green algae.

If your dog shows any symptoms of poisoning, bring your pet to the Greenwood, IN veterinary clinic immediate for proper veterinary attention.