Fig. 4From: Assessing the suitability of a remotely operated vehicle (ROV) to study the fish community associated with offshore gas platforms in the Ionian Sea: a comparative analysis with underwater visual censuses (UVCs)Mean number of species (species richness) at each platform and depth layer. LA Luna A, LB Luna B, HL Hera Lacinia. Vertical bars represent the standard error from meanBack to article page