A Cornish fisherman says rescued seals that have been released back into the sea have been scaring off fish. St Ives skipper, Paul Osborne, says the seals are causing real problems by following boats and dispersing shoals of fish.
It comes as the National Seal Sanctuary at Gweek warns boat owners and members of the public not to feed the animals in the wild.
The sanctuary says that people do not realise how dangerous the seals can be.