The sediment was imaged using a Pika imager from Resonon Inc. The hyperspectral imagers are stored as datacubes in HDF5 format (http://www.hdfgroup.org/HDF5/), along with the acquisition metadata.The dataset names indicate the benthic context of the acquisitions: ambient - natural undisturbed sediment worm - sediment recomposed in-situ which was defaunated, and then 4 lugworms (Arenicola marina) were introduced in the center of the plot sed - sediment recomposed in-situ which was defaunated The hypersub system was used to make acquisitions of the sediment surfaces about 5 weeks after the above sediment processing. The lateral width of the scans is approximately 80 cm.