Benthos

In marine geology[?] and marine biology, the organisms and habitats of the sea floor, in freshwater biology[?] the organisms and habitats of the lakes, rivers and creeks.

From the size of organisms there are distinguished

• macrobenthos[?], size > 1 mm
• meiobenthos, size > 0.063 mm
• microbenthos[?], size <0.063 mm

Benthic organisms play a great role as food for fish and men, but also as destruents[?].