A Western Isles vet is warning dog lovers to be careful about letting their pets cool off in lochs with the warm weather causing poisonous algae to appear.
A number of dogs fell ill after swimming in Loch Nan Geadh in Daliburgh in South Uist at the weekend.
Southern Isles Veterinary Practice warned: “We had a family of dogs showing signs of exposure to blue green algae.
“Signs include sudden onset vomiting, diarrhoea and neurological signs. This happened after walking and swimming in Loch nan Geadh, Daliburgh.
“We would urge people to take caution and avoid this area until further tests are carried out.”
Rose Blaney said her pets were affected with one dog on “life-support” after taking a dip in the loch as they regularly do.
She said: “Got home and were all rushed to vets due to high levels of algae bloom which is highly toxic to dogs and fish and humans.
Ms Blaney added: “All dogs where kept in overnight to be monitored and one ended up on life support due to severe reaction.”
Algal blooms can also harm humans. Western Isles Council said it was aware of the issue and is monitoring the situation with assistance from SEPA and Western Isles Health Board.
The council warns: “Effects on people coming into contact with toxic scums include skin rashes, eye irritations, vomiting and diarrhoea, fever and pains in muscles and joints.
“Toxic algae have caused deaths of livestock and dogs.”
A council spokesman said: “There are indications that blue-green algae may be present.
“As a precautionary measure, notices have been posted next to the loch, warning that contact with the algal scum should be avoided. Landowners have been advised of the situation.”
The safest option to minimise health risks is by “avoiding all contact with affected waters”, stresses the council.
“Ensure children and pets are kept away from potential blooms. Do not consume water or fish from within the immediate vicinity of an algal bloom, and always wash your hands and fishing gear thoroughly after coming into contact with contaminated water.”