Reports on surveys of herring larvae in the North Sea and adjacent waters, 1971 - 1972

This Report describes the results of the 5th International Survey of Herring Larvae in the North Sea and Adjacent Waters. These surveys were started in 1967 (Saville, 1970; Bo~tius and McKay, 1970; Wood, 1971; Zijlstra, 1972), initiated by a recommendation of the ICES

Herring Committee in 1966 with the aim of describing changes in North Sea herring spawning stocks independently from catch per unit effort data. During autumn and winter 1971/72 five countries participated

in this survey programme with the following research vessels: England: RV "Corella"; Federal Republic of Germ.an.y: RV "Anton Dohrn"; Netherlands: RV "Willem Beukelsz" and RV "Tridens"; Scotland: RV "Clupea" and RV "Explorer"; Sweden: RV "Thetis".