Dozens of fish have been found dead at a Cumbrian beauty spot.
Talkin Tarn, near Brampton, has experienced an algal bloom, which has led to a large number of fish deaths – thought to be around 30 – in the area.
Algal blooms can occur naturally when temperatures are warmer but they can also be caused by pollution.
The blooms block sunlight from reaching other plants in the water. They also use up oxygen in the water at night which can suffocate fish and other water creatures. Oxygen is also used up when the bloom decays.
Testing has been carried out by the Environment Agency, but the agency has not yet confirmed the root cause of the bloom.
An Environment Agency spokesman said: “An algal bloom at Talkin Tarn has unfortunately led to a significant fish kill, our officers responded quickly, attending the site and carrying out tests on the algae.
“The bloom has been confirmed as not being blue-green algae, which can pose significant health risks to people and pets.
“We have continued to advise Cumberland Council on the next steps, and the council is managing the situation through aeration of the pond, as well as providing warnings and information to the public.”
Talkin Tarn is owned by Cumberland Council, which is managing the situation with support from the Environment Agency.
A council spokesman said: “Cumberland Council can confirm that a recent algal bloom at Talkin Tarn has now cleared, with the water returning to normal. We are continuing to monitor and manage the after-effects of the bloom.”
People are encouraged to report any signs of pollution to the Environment Agency’s 24-hour incident hotline on 0800 80 70 60.
