Macrobenthos consists of the organisms that live at the bottom of a water column and are visible to the naked eye. In some classification schemes, these organisms are larger than 1 mm; in another, the smallest dimension must be at least 0.5 mm. They include polychaete worms, pelecypods, anthozoans, echinoderms, sponges, ascidians, crustaceans. In ...
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http://en.wikipedia.org/wiki/Macrobenthos
(from the article `benthos`) ...inhabiting the seafloor. Benthic epifauna live upon the seafloor or upon bottom objects; the so-called infauna live within the sediments of the ... Benthic organisms can be classified according to size. The macrobenthos are those organisms larger than 1 millimetre. Those that eat organic material ... [...
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http://www.britannica.com/eb/a-z/m/5
Organisms (for example, insect larvae) living in or on aquatic substrates and large enough to be seen with the naked eye. ... (09 Oct 1997) ...
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http://www.encyclo.co.uk/local/20973
(Gk: makros=large; + benthos sea depth) organisms larger than 1mm, found on the sea/lake bottom. See also meiobenthos and microbenthos.
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http://www.seafriends.org.nz/books/glossary.htm
macrobenthos, macrobenthic The larger organisms of the benthos, exceeding one mm in length.
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http://www.wordinfo.info/words/index/info/view_unit/1234/2
(macrofauna or macroflora) Benthic organisms (animals or plants) whose shortest dimension is greater than or equal to 0.5 mm
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https://www.encyclo.co.uk/local/20125
No exact match found.
