Six surveys of a series to collect biological data on fish stocks in support
of the EU Data Collection Regulation (DCR). Fishing was undertaken using a
Portuguese High Headline Trawl (PHHT) and 4m Beam Trawl, using a subset of the
station grid previously fished on Cefas Celtic Sea Groundfish Surveys. The
station grid was not a fixed target and was deviated from as dictated by
weather, catch rates and/or sampling needs.