Cyanobacteria in freshwater poses deadly risks to dogs

Cyanobacteria, commonly known as blue-green algae, pose a significant health risk to dogs swimming in freshwater environments. Research conducted by Schonna R. Manning at Florida International University highlights that dogs are particularly vulnerable because they often gulp water while playing and may ingest toxins trapped in their fur during grooming.

Some harmful algal blooms release powerful substances that can damage the brain, nervous system, skin, or internal organs. Manning’s laboratory was the first to detect dihydroanatoxin, a potent nerve toxin, in algae mats. Studies have documented cases where dogs died within hours of accidental ingestion. These blooms are more frequent during warmer months as rising water temperatures create favorable conditions for cyanobacteria growth.