Figure 5
(A) Habitat map based upon four ROV surveys carried out in the western branch of the Dohrn Canyon with respect to the most relevant biological taxa and marine litter observed there; it documents a widespread distribution of Neopycnodonte zibrowii in the canyon head at steeper loci at the sites DOHRN-ROV_1/MS16_7 and MS17_102 but only sporadic at MS17_81; co-occurring CWC presence (Lophelia pertusa, Madrepora oculata, Desmophyllum dianthus) is less obvious loci at the site MS17_102; Acesta excavata is relatively frequent at the sites DOHRN-ROV_1/MS16_7. (B) Frequency of organisms and litter (x-axis) with respect to the depth range (y-axis); it documents a higher biodiversity between 370 and 390 m water depth; the stronger impact by fishing gears is located between 370 and 410 m, associated with hard substrates, whereas the maximum dumping impact is found between 430 and 460 m on muddy bottoms.
