Thousands of new fish have been put into Yeadon Tarn after stocks were wiped out by a big freeze last year.

The Environment Agency carried out tests for pollution after numerous dead fish were found with the onset of the thaw.

They concluded the fish died as a result of de-oxygenation when the tarn was covered with ice up to four inches thick, as well as a thick layer of snow.

But now the tarn is teeming with life again after the addition of more than 2000 roach and perch – two breeds which appeared to have been wiped out by the cold weather.

The Aireborough and District Angling Association said although some bream and tench had been caught in the time since, no roach or perch had been reported, although carp seem to have thrived.

Spokesman Peter Darfield said: “The carp population appeared largely unaffected and perhaps benefited from fewer competitors for the natural food that abounds there. Many of the carp have grown to specimen size with the biggest carp reported as caught at nearly 23lbs.”

Read more on this story in the Gazette & Observer this week.