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Animal life in the deep sea
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abundant abyssal adult amphipods angler-fishes animals Antarctic arrow-worms bacteria bathypelagic bathypelagic fishes benthic benthopelagic benthopelagic fishes benthos biomass bivalves body bottom carnivores cells cent Central Water centred cephalopods ceratioid cnidarians continental slope copepods crustaceans ctenophores Cyclothone deep deep-sea fishes deep-sea floor deposit-feeders depth range diatoms distribution diverse eggs epipelagic equatorial euphausiids euphotic zone eutrophic eyes fauna feed females forms gelatinous genera genus gland groups Indian Ocean invertebrates jellyfishes known lantern-fishes larger larvae layer length less light organs live luminescent luminous macrourids males Marshall mesopelagic fishes mesopelagic levels metres midwater fishes muscles nekton neuromasts North Atlantic nutrient olfactory oozes oxygen Pacific particles pelagic photophores phytoplankton plankton polychaete polychaete worms prawns predators prey productive rat-tails Redrawn regions relatively retina sea water sediment siphonophores sponges squid stages stomiatoids subtropical swimbladder swimming tentacles trawls Trench tropical tunicates upper vertical migrations water column water masses zooplankton