The stations were sampled along the French Mediterranean coast in spring (March-April) 2015 onboard the RV Europe. Bottom sediment at 28 stations (11 to 64 m water depth) was sampled using a Reineck box-corer. Three replicates (“a”, “b”, “c”; different box-corer launches) were done at each station. Each box-corer was sub-cored with a 7.4 cm diameter tube. Only the first top centimetre was preserved in 96% ethanol and stained with 2 g/L Rose Bengal. At the laboratory, after minimum two weeks each sample was washed through four sieves of 63, 125, 150, and 500 µm mesh sizes. Living (stained) benthic foraminifera from the 125-150 µm and 150-500 µm were collected under stereomicroscope and preserved in micropaleontological slides. Taxonomical recognition was done to the species level. The presented data in the table indicate the raw densities of foraminifera sorted per sample. The exact volume of sampled sediment was measured for each sample. Some samples were treated with Sodium Polytungstate (SPT) to separate benthic foraminifera from the sediment. The SPT density is indicated for each treated sample.

These data were acquired thanks to Pierre Boissery and the funding from the Agence de l'Eau Rhône Méditerranée Corse. The sampling survey was possible thanks to the Ifremer, especially Bruno Andral, and the RV Europe crew members.