_:b1218124 . _:b1218124 "ISBN:044482619X"^^ . _:b1218124 . _:b1218124 "PLB:plb"^^ . _:b1218124 "The oceanic hadal pelagic zone biome comprises the water column in oceanic trenches occurring at depths between 6000m and 10,000m."^^ . _:b1218124 .