Blue-Green Algae Toxicity in Dogs

Blue-green algal blooms (or cyanobacteria, as they are sometimes called) are a threat to dogs that swim in or drink water from lakes affected by these blooms. The resulting toxicity can be extremely rapid in onset and may not even allow enough time to seek veterinary attention for the affected dog.

This week, Jana Rade, of Dawg Business, asked me to write a guest post on the effects of stale water and blue-green algae. The article details the conditions where blue-green algae is likely to be found and explains the different types of poisons/toxins associated with the blooms. Clinical signs are also listed and treatment is discussed briefly.

As a veterinarian, I (fortunately) have only dealt with blue-green algae toxicity on a limited basis, really only a few cases. Unfortunately, the outcome of these cases is often not favorable. Many dogs poisoned with blue-green algae do not survive the experience. The best course of action is to keep your dog away from any body of water that looks suspicious. Not all ponds and lakes will experience algal blooms and not all algal blooms are toxic. However, it is virtually impossible to determine whether a bloom is or is not toxic without laboratory testing.

If you suspect your dog has ingested water contaminated with blue-green algae, seek immediate veterinary care. Symptoms vary but can occur suddenly and progress extremely rapidly.

After you’ve finished reading my guest post on blue-green algae, don’t forget to spend some time exploring Jana’s site. She has a wealth of wonderful information there offered from the perspective of pet owner who has experienced numerous health issues with her pets and taken the time to thoroughly research not only those health problems but pet care in general. It’s well worth your time to look around there.

And the next time you see a pond or lake that looks like pea-green soup, you’ll know why you shouldn’t allow your dog to go swimming or even drink from the lake.

It is worthwhile to note also that blue-green algae is toxic to people as well as to dogs. People apparently often suffer skin irritations, gastrointestinal difficulties and respiratory problems when exposed to blue-green algal blooms and the toxins they may contain. Just as your dog should avoid ponds and lakes with algal blooms, it is safer for you and your family to do the same. Often, if a bloom is in progress and public health officials are aware of the issue, a notice may be published advising people to avoid the pond or lake. However, public health officials are not able to monitor all bodies of water for algal blooms so pet owners should inspect water before allowing their pet access to the area. A bit of caution can help prevent a tragedy where stale or stagnant bodies of water exist.

Have you had experiences with blue-green algae or algal blooms? Share your experiences here. Please leave a comment below.