Biological (presence of infauna, tubes) and physical (apparent redox potential
discontinuity (aRPD) layer, penetration depth, surface roughness) parameters
measured, and a Benthic Habitat Quality Index assessment, from sediment
profile images of the seabed with associated station information. The sediment
profile images were acquired from a self-contained photographic system at
sampling stations located within six experimental boxes (three treatments and
three control) during a fishing impact recovery survey within the Fladen
Grounds. Data were collected at three time points (before impact (time 0),
immediately after impact (time 1) and 8 months after impact (time 2) during
two research surveys on the RV Cefas Endeavour in April 2015 and November
2015.