Tracking devices fitted to fishing boats

Tracking devices are being fitted to small fishing boats working in Lyme Bay as part of a pioneering partnership between fishermen and conservationists. They've drawn up a voluntary agreement to limit the amount of fishing gear used locally.

The trackers will help prove that fishermen are sticking to the rules. And they'll also help the fishermen show which fishing grounds are most important to them.

Our Environment correspondent Duncan Sleightholme has this exclusive report: