Blue-green algal blooms are something many of us have come across on fresh water ponds in parks across Northern Ireland.

But did you know that under the right conditions, algae produces toxins that can kill animals and even harm people?

And what's worse, it is understood there's no antidote.

Some parks across the region have signs advising people not to eat fish from algae covered lakes. But the consequences can be much worse for a thirsty dog taking a few laps of affected pond water on a hot day.

A spokesperson for Co Down's Pet Connection sad: "You may notice signs popping up around lakes, ponds, streams and places you regularly visit with your dog.

"If you do, it is very important that you keep your dog out of the water.

"Cyanobacteria, commonly known as blue-green algae is a microscopic bacteria usually found in areas of standing fresh water. Under the right conditions, blue-green algae will produce toxins called microcystins and anatoxins which make the water toxic to drink.

"Clinical symptoms of blue-green algae poisoning can include lethargy, vomiting, diarrhoea, weakness, black tarry stools, anorexia, collapse, jaundice, pale gums, jaundice, hyper-salivating, inability to walk, difficulty breathing, tremors, muscle rigidity and excessive tear production.

"Even one or two laps of water containing these toxins can be enough to cause fatal damage to dogs, cats, horses and other animals.

"Unfortunately, with blue-green algae, the prognosis is very poor, and some dogs actually pass away before being able to get to a veterinarian. For this reason, if you suspect that your dog was exposed to blue-green algae, get to a vet immediately.

"Unfortunately, there is no antidote for the toxins produced by blue-green algae, but symptoms may be manageable."

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