Organisms in this area include anemones, barnacles, chitons, crabs, green algae, isopods, limpets, mussels, sea lettuce, sea palms, sea stars, snails, sponges, and whelks. Animals that live on the sea floor are called benthos. Most of these animals lack a backbone and are called invertebrates.
Typical benthic invertebrates include sea anemones, sponges, corals, sea stars, sea urchins, worms, bivalves, crabs, and many more. Skip to content Helpful tips. March 4, Joe Ford.
Table of Contents. Term » Definition. Word in Definition. Wikipedia 0. How to pronounce Profundal zone? Alex US English. David US English. Mark US English. Daniel British. Libby British. Mia British. Karen Australian. Hayley Australian. Natasha Australian. Veena Indian. Priya Indian. Neerja Indian. Zira US English.
Oliver British. Therefore, this zone depends for its calories on the drifting down of organic matter from the littoral and limnetic zones. The profundal zone is chiefly inhabited by primary consumers that are either attached to or crawl along the sediments at the bottom of the lake. The surface water becomes enriched in oxygen some from the air above it the rest — because it is in the limnetic zone — from photosynthesis.
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