Cold-seep communities in the western Atlantic Ocean have also been described from a few dives on mud volcanoes and diapirs between depth in the Barbados accretionary prism area and from the Blake Ridge diapir off North Carolina. More recently seep communities have been discovered in the eastern Atlantic, on a giant pockmark cluster in the Gulf of Guinea near the Congo deep channel, also on other pockmarks of the Congo margin, Gabon margin and Nigeria margin and in the Gulf of Cádiz.