Dog owners are being warned to keep their pets away from ‘scummy’ lakes and rivers this summer in case toxic bacteria are lurking on the surface.
Dogs Trust Newbury has issued an alert as the ongoing hot weather creates ideal conditions for harmful algal blooms in still or slow-moving water.
The charity says that blue-green algae thrives in warm temperatures. It can form scum on the surface of lakes, ponds, and rivers, and is potentially deadly to dogs if ingested, even in small amounts.
While on walks, dogs can drink contaminated water or lick their fur after a swim, which can cause serious health issues, including liver damage and seizures.
Charlie Matthias, Senior Veterinary Surgeon at Dogs Trust, said: “As temperatures continue to soar and water levels drop, there is a potential for an increase in blue-green algae, which poses a real threat to dogs.
“On hot days, it can be tempting to let your dog dip in your local lake or river to cool down, but blue-green algae can make your dog very sick, and in some cases, prove fatal if ingested even in small quantities.
“We’re urging all dog owners to avoid letting their dogs swim in or drink from lakes or rivers that look green, scummy, have surface foam or have warning signs nearby.
“Blue-green algae is not always easy to spot, so if in doubt, don’t let your dogs swim in or drink from the water. If you are walking your dog near water where blue algae have formed, keep them on a lead.”
Signs of blue-green algae poisoning can appear within minutes, and urgent veterinary treatment is essential. Symptoms include vomiting, diarrhoea, excessive drooling, tremors, seizures, breathing issues, and sudden collapse.
There is currently no antidote to the toxins, but early intervention may help a vet flush them from the dog’s system.
Dog owners are advised to avoid still or stagnant water in warm weather, heed warning signs, and wash pets thoroughly if contact is suspected.
