People have been urged to keep themselves and their pets away from poisonous algae spotted in Loch Lomond at Luss.
The blue-green algae blooms, which occur naturally and can resemble an oil slick, were spotted near Luss pier last weekend - and can be especially harmful to dogs going for a paddle in the chilly Loch.
Blue-green algae can be a problem during the warmer months. The algae blooms can make the water become green, blue-green or greenish brown. Several species can produce musty, earthy or grassy odours and it can also cause foaming on the shoreline.
A spokesperson for Loch Lomond & The Trossachs National Park Authority, said: “Blue-green algae does occur at times in lochs and when it does, it’s important that people keep themselves and their pets and livestock out of the water.
“It produces harmful toxins that can kill dogs and other animals, as well as causing skin rashes in humans if they come into contact with it or illness if swallowed.
“Blue-green algae is an environmental health issue so should be reported to the relevant local authority. We work closely with local authorities to raise awareness of the risks when it occurs in the loch and we have been posting warnings on social media this week.
“Anyone spotting blue-green algae where there are no warning signs present on the shore, should make the environmental health team at their local authority aware.”
An Argyll and Bute Council spokesperson said: “When we are made aware of possible blue/green algae blooms, investigations are carried out and, where blooms are found to be present, warning signs are placed at the scene.
“It is not possible to tell which algae do or do not produce toxins simply by their appearance. Laboratory analysis is needed for this.
“Therefore, it is advisable to regard all algal scums as potentially toxic.
“More information on algae and what to do if you suspect it is present can be found on our website at argyll-bute.gov.uk/blue-green-algae ”
