These sample data are from sediment cores collected in the North Sea and the
Celtic Seas on three surveys undertaken between 2023 and 2024 using a NIOZ
(Royal Netherlands Institute for Sea Research design) Box Corer during 3
surveys conducted by the Research Vessel (RV) Cefas Endeavour. Samples were
analysed for and data presented for TOxN (Total Oxidized Nitrogen = nitrate +
nitrite), nitrite, soluble reactive silicate (SRS), orthophosphate, and
ammoniacal nitrogen (ammonia + ammonium) and used to estimate nutrient fluxes
between the seabed and overlying water column.
