As fish stocks are wiped out by over-fishing and dolphins endangered by the French pursuit of winter bass, ethical consumers want to know what they can eat. Now they can check out the Marine Conservation Society's Good Fish Guide.

The issue is more complex than which fish toeat or not, usually being more about where they are caught and whether they come from sustainably managed stocks. Cod from the exhausted waters of the Atlantic and North Sea, for example, are to be avoided whilst cod from Icelandic waters are fine. Fish and chip aficionados can relax. Most of the UK's cod is Icelandic.

The guide covers the 60 most common fish on sale in the UK as well as listing the 20 most vulnerable. The Good Fish Guide is available from: The Marine Conservation Society, 9 Gloucester Road, Ross-on-Wye, HR9 5BU Tel.: 01989 566017.