This survey was carried out in January 1987 as part of the International
Council for the Exploration of the Sea (ICES) co-ordinated herring larval
survey of regions IVc and VIId (southern North Sea and eastern English
Channel). Plankton samples were collected at each site on a planned survey
grid. Clupeid larvae were identified and enumerated. Associated positional
data and volumes filtered also included.
