Mean megafaunal taxon density (per 100 m−2) from video observations before, during and after the drilling operations at increasing distance from the well.

* = species that were observed but not recorded, either outside of survey area or large motile organisms intentionally excluded to prevent over estimation of abundance.† = higher resolution still photograph collected, otherwise only recorded from video footage. H = hard-substratum organisms, S = soft-substratum organisms, G = generalists, organisms seen on both hard and soft substrata.