Catching crustaceans is a vital source of income for the divers of the Mosquito Coast. But the depths they plumb can prove fatal. Jenny Kleeman reports from Cocobila, Honduras

Serves 4

"Killer Shrimp" are among the worst alien invaders of Britain's waterways, which officials say are costing billions of pounds to tackle.

Makes 12 little snacks

A lobster hatchery in the fishing village of Padstow in Cornwall says it has a novel scheme to re-populate seas of the south-west with thousands of the threatened crustaceans – but needs the help of willing divers.

Tiger and king prawns are to become the first Fairtrade seafoods, in a move aimed at bringing social and environmental improvements to fish farms.

Traps baited with cat and fish food are being used to track "killer" shrimp in British rivers, the Environment Agency has announced.

Serves 4

Makes about 18

Saxophonist Ed Jones and trumpeter Damon Brown are talented UK bop players who've been round the block a few times and Killer Shrimp is their attempt to use technology to sound more contemporary.

The Crustastun sounds like another gadget that's going to get broken and relegated to the back of a kitchen cupboard.

For the first time the vicious shrimp Dikerogammarus villosus has been found in Britain, causing consternation among scientists charged with keeping the country's waterways stocked with native wildlife.

Serves 4

Serves 4-6