macrobenthos

Animals and plants living on the seabed which are sufficiently large to be retained by a 500 micrometre sieve (1 micrometre = one-millionth of a metre, see meiofaunameiofauna Marine animals sized between 1mm and 0.1mm). The animals and plants in the macrobenthosmacrobenthos Animals and plants living on the seabed which are sufficiently large to be retained by a 500 micrometre sieve (1 micrometre = one-millionth of a metre, see meiofauna). The animals and plants in the macrobenthos are surveyed by all environmental assessments, although often the retaining sieve measures 1 millimetre rather than 500 micrometres. The macrobenthos includes all classes of marine animal and plant. Macrofauna is the term that applies to marine animals alone. are surveyed by all environmental assessments, although often the retaining sieve measures 1 millimetre rather than 500 micrometres. The macrobenthos includes all classes of marine animal and plant. Macrofauna is the term that applies to marine animals alone.