1986 - 1986 Centre for Environment, Fisheries & Aquaculture Science (Cefas) West Central North Sea Plankton Survey - RV Cirolana 08/86

This survey was carried out as part of the International Council for the Exploration of the Sea (ICES) coordinated herring larvae survey of ICES Region IVb during the two standard sampling periods in October. Plankton samples were collected at each site on a planned survey grid. This data consists of the numbers of herring and sprat larvae.