Flow cytometer data during Poseidon survey in the Celtic Sea in 2016

Participation into annual multidisciplinary pelagic surveys of the Western Channel and Celtic Sea waters as part of project Poseidon. The aims of the Poseidon project is to estimate the biomass of-, and gain insight into the population of the small pelagic fish community using trawl and acoustic. Continuous recording of phytoplankton groups was coupled using automated flow cytometry (CytoSense), together with other measurements. These measurements are: surface (4 m) salinity, temperature, fluorometry, oxygen and pH and Fv/Fm from the ‘Ferrybox’, phytoplankton functional types with a flow-cytometer (Cytosense) and zooplankton with the Plankton Image Analyser (PIA), Chlorophyll a concentration, dissolved oxygen concentration, salinity, temperature, inorganic nutrients concentration and the relevant QAQC samples for calibration of the equipment from discrete samples. Besides, phytoplankton and micro-zooplankton at predetermined 18 primary stations for further analysis were taken back to the lab (species composition, abundance, biomass and size distribution).