JOHANNESBURG - Three species of black coral have been discovered on the seabed of the northern Pacific Ocean, an area where several countries have contracts to explore for metals including cobalt and nickel as they race to find new supplies of the key battery elements.
Authors Dennis Opresko of the Smithsonian Institute and Daniel Wagner of Conservation International said they aimed to identify deep-sea habitats in the zone which holds the highest concentrations on Earth of cobalt-rich ferromanganese crusts. Environmentalists have called for a ban on deep-sea mining which would extract prized resources including cobalt, copper, nickel, and manganese from seabed nodules and crusts.
The new black coral species are so named because of their black skeletons, but they can appear pink, white, or various other colours because of the living tissues growing over the skeleton.
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