Videoframe of seafloor displaying bedforms affecting sandy deposits in the continental slope of the Gulf of Cadiz, just downstream of the Strait of Gibraltar: starved sand ribbons with superimposed ripples resting on the rocky surface that are also colonized by sponges. This image highlights obstacle marks formed by sponges.. Note that current direction is responsible for tails, bars and ripples formation and is coincident with suspended sediment transport direction.

Videoframe of seafloor displaying bedforms affecting sandy deposits in the continental slope of the Gulf of Cadiz, just downstream of the Strait of Gibraltar: lobe domain of a sinuous sandwave crestline with sinuous to rectilinear ripples to the stoss and avalanching events to the lee. The sandwave develops over previously coarser sand and a gravelly seafloor