North Sea Plankton Survey - RV Cirolana 01/89

The aim of this cruise was to participate in the International Council for the Exploration of the Sea (ICES) co-ordinated herring larval survey of Regions of IVc and VIId (southern North Sea and eastern English Channel). Plankton samples were collected at each site on a planned survey grid. This data consists of the numbers of herring larvae, along with associated positional data and volumes filtered.