IMIS

In June 2013 and April 2014, sampling was carried out at four sites selected as representatives of different environmental issues and anthropogenic impacts At each station, scuba divers collected five virtually undisturbed sediment cores using polycarbonate sample tubes (12.7 cm I.D. with a sample area of 127 cm^2). The three remaining cores were brought to the laboratory, partially extruded, and the oxic sediment layer (0–0.5 cm ca) of each core was collected, homogenised and used for the grain size analysis as well as the quantitative and qualitative determination of microphytobenthos.