ST. GEORGE — The presence of highly toxic algae mats in the Virgin River has resulted in one dog’s death and illness for three others, thus prompting an advisory to be issued by the Utah Division of Water Quality.
Four dogs presented symptoms consistent with exposure to harmful algae toxins, and water samples indicate a high level of a dangerous toxin — anatoxin-a — is present. Specific areas of the river impacted by the official health watch include St. George, Bloomington and Hurricane, according to a news release from the water quality division.
Humans and animals are exposed to toxins when they ingest harmful algae mat material or drink water in areas of disturbed mats. Dogs are attracted to the smell of harmful algae mats and are most at risk for lethal exposure, the news release said.
Common symptoms of exposure to anatoxin-a in pets include excessive drooling, stumbling or muscle tremors, difficulty breathing, weakness, seizures, paralysis and death. Symptoms usually begin within minutes to hours following exposure.
Harmful algae mats (also known as benthic cyanobacteria) often have a mucousy, gelatinous texture and can be green, blue, yellow or brown, according to the Division of Water Quality. They are often toxic and can be found growing on submerged rocks, plants, river banks and sand or as floating mats in lakes, reservoirs and rivers.
If harmful algae is present:
- Do not let pets drink the water, swim in the water, eat near the water, eat algae or algae mats or eat dead animals, like fish, found near the water.
- If your pet goes into the water, rinse them off immediately and do not let them lick their fur.
Prevention is the best way to protect pets, the news release said. If you believe your pet has been exposed to a harmful algae mat, seek immediate care from your veterinarian.
Visit HABs.utah.gov to check conditions before you visit a waterbody and always look at the water before you let pets out to play.
Additional information is available by watching the Utah Water Watch video below.