Huge quantities of fish are lost after capture. This is an enormous waste of food, especially in the Third World, where much fish production is on a small scale, and where high temperatures make spoilage much more rapid. The situation is increasingly serious, at a time when the world's demand for fish is increasing, yet fishery resources are already under very heavy pressure. This publication seeks to explain just what the 'post-harvest' losses are, and the steps which can be taken to reduce them.