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Diverse Colonizers (Biotic Group)

Component: Biotic

Unique Identifier: 512

Biotic Setting Benthic/Attached Biota
Biotic Class Faunal Bed
Biotic Subclass Attached Fauna
Biotic Group Diverse Colonizers
Biotic Community Anemone/Mussel/Bryozoan Colonizers (Large Macrofauna)
Sponge/Gorgonian Colonizers
Mollusk/Sponge/Tunicate Colonizers (Large Megafauna)


Description
Definition Areas dominated by highly varied and diverse communities of mixed fauna that have attached to a biotic or abiotic hard substrate (which may be rock, cobble, oyster reef, non-living coral reefs, or other substrates). Common colonizing taxa include anemones, tunicates, barnacles, mollusks, hydroids, bryozoans, gorgonians, soft or leather corals, sponges, and/or other taxa. Diverse Colonizers on living coral reefs are included in the Colonized Shallow and Mesophotic Reef Biotic Group. Diverse Colonizers can be further described using the Invertebrate Community Organism Size Modifiers: Meiofauna (dominants < 0.5 millimeter), Small Macrofauna (dominants > 0.5 millimeter to 2 millimeters), Large Macrofauna (dominants > 2 millimeters to 1 centimeter), Megafauna (dominants > 1 centimeter to 3 centimeters), Large Megafauna (dominants > 3 centimeters), with all measurements in the smallest dimension (e.g., width or height) and not including the length of slender lateral projections (e.g., arms or tentacles). As with all biotic groups, this unit may be used when communities cannot be identified, as in "Diverse Colonizers (Megafauna)", which provides important information despite limitations of data, e.g., video information.