Benthic zone
From Free net encyclopedia
The benthic zone is the lowest level of a body of water, such as an ocean or a lake. It is inhabited mostly by organisms that tolerate cool temperatures and low oxygen levels, called benthos or benthic organisms. The profundal, limnetic, and littoral zones can be found above the benthic zone. No light other than bioluminescence is found in the benthic zone; it is part of the aphotic zone.