What little energy is available in the bathypelagic zone filters from above in the form of detritus, faecal material, and the occasional invertebrate or mesopelagic fish.
12.
Many forms other than fish live in the bathypelagic zone, such as squid, large whales, octopuses, sponges, brachiopods, sea stars, and echinoids, but this zone is difficult for fish to live in.
13.
It is a small, deep maroon-colored squid that inhabits the meso-and bathypelagic zones of all oceans of the world, and is particularly abundant in the Southern Ocean where it seems to be the dominant small deep-sea squid . " B . abyssicola " normally occurs at depths from, but has been recorded from.
