Abstract
The stomach contents of 5762 herring caught during North Sea trawl surveys in February 1983, February 1984 and February, May and August 1986 were analysed. The principal prey organisms were the copepods Calanus finmarchicus and Temora longicaudata, but Euphausiacea and the post‐larval stages of Ammodytes spp. and clupeoids contributed a large percentage of the weight. Fish eggs were eaten, chiefly those of plaice, Pleuronectes platessa, but not in large numbers.

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