A "lethal cocktail" has decimated the fish population living in and around the Lake District's "jewel in the crown" - according to fishermen and scientists.

Young salmon and trout with damaged gills have been found by the Environment Agency in the River Leven, which has Windermere as its source.

In the past, the Leven was a prime spot for salmon and trout anglers who came from across the country to enjoy their sport.

Jeremy Westgarth, of the EA, explained that the "historical legacy of the last 20 to 30 years" including environmental and farming changes meant that more algae blooms were growing in the water.

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