Exploration in the deep Gulf of Cadiz reveals new species of shrimp and hydroid associated with mud volcanoes.
In the deep Gulf of Cadiz, over 30 mud volcanoes lie between 200 m and 4000 m depth. In spite of lava, these volcanoes expel mud pushed up from deep sediments by methane gas. The exploration of the deep Gulf of Cadiz during the UNESCO/IOC Training-Through-Research programme and the European Union project HERMES allowed the discovery of several new species, including a new shrimp and a new hydroid.