The Mayor of Helston Arthur Lee visits a crab processing plant in Porthleven Cornwall. Twenty thousand tonnes of edible or brown crabs are landed annually in the UK with a large proportion coming from off the south coast of Devon and Cornwall. Crabs are also exported to France and Spain. Traditional crab pots are used and thought to have a lower environmental impact. The crab fishery is managed and minimum size restrictions have been in place since the sixties.