Thousands of dead fish and sea creatures including seals and velvet crabs washed up on Yorkshire's East Coast over the weekend after gale force winds and an underwater storm.
A group of fishermen rescued live lobsters to release them back into the sea at Fraisthorpe, near Bridlington.
Yorkshire Wildlife Trust has described the scenes on Holderness Coast as 'devastating'.
Meanwhile in Lincolnshire, dozens of dead fish were found in River Witham near Woodhall Spa.
The Environmental Agency said it has experts on site.