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Tricellaria inopinata
Image courtesy of © WoRMS for SMEBD, CC BY-NC-SA 3.0 License
Tricellaria inopinata
Taxonomic Group: Bryozoans


Tricellaria inopinata forms erect, bushy, and branched colonies which are cream-to-buff in color. Introduced from the Pacific, it was described as a new species from the Venice Lagoon, Italy, but may have older Pacific-based names. Introduced populations are known from Massachusetts and Northern Europe. It is a fast-growing fouling organism and grows attached to wood pilings, floats, rocks, seaweeds, seagrasses, oysters, mussels and other hard substrates. In some locations it is reported to replace other species of arborescent bryozoans, but its economic and ecological impacts require more study.

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Fofonoff PW, Ruiz GM, Steves B, Simkanin C, & Carlton JT (2018)
National Exotic Marine and Estuarine Species Information System.
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Marine Invasions Lab
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