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Attached Tunicates (Biotic Group)

Component: Biotic

Unique Identifier: 518

Biotic Setting Benthic/Attached Biota
Biotic Class Faunal Bed
Biotic Subclass Attached Fauna
Biotic Group Attached Tunicates
Biotic Community Attached Didemnum
Attached Molgula


Description
Definition Areas dominated by attached members of the subphylum Tunicata, known as tunicates, ascidians, or sea squirts. Tunicates are bag-like filter feeders with an incurrent and an excurrent siphon. In some areas they reach high abundances. One species (Didemnum, see Figure 8.10) is a rapid invasive that blankets large areas, excludes other fauna, and has invaded many countries around the world, including the United States, on both the East and West coasts.