IMIS

To continuously log sub-surface (4m) salinity, temperature, fluorometry and other environmental data using the ‘Ferrybox’. Additionally, a Flow-cytometer (phytoplankton) and Plankton Image Analyser (PIA) (zooplankton) may be run in conjunction with the Ferrybox. Flow cytometry analyses were performed every hour from the same inlet water as the FerryBox during the survey. Discrete samples were taken using CTD rosette at 4 metres to calibrate the chlorophyll fluorescence. The analysis of the phytoplankton functional types were done manually (according to the knowledge of the operator), and the discrete samples were analysed by HPLC (DHI, Denmark). All data from the FerryBox (fluorimetry, turbidity, salinity, temperature, oxygen) as well as HPLC and flow cytometry followed specific quality controled procedures before being availble.