Eel City is the name given to a community of deep-sea eels living amongst hydrothermal vents in the new volcano of Nafanua in American Samoa. It is unique because most hydrothermal vents are predominantly inhabited by invertebrates, whereas there is little invertebrate life in Eel City. Preliminary work indicates that they use the vent only as a place to live. They seem to feed not on chemosynthetic bacteria, but on crustaceans that pass by Nafanua's summit in the currents.