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Didemnum perlucidum
Image courtesy of Rosana M. Rocha, Universidade Federal do Paraná (UFPR), Brazil
Didemnum perlucidum
Taxonomic Group: Tunicates


Didemnum perlucidum is a widely distributed colonial tunicate. It was first described in Guadeloupe in the Caribbean, but was subsequently found in Brazil, West Africa, the Gulf of Mexico, and the Indo-Pacific, including Hawaii, Guam and the Pacific entrance to the Panama Canal. We consider D. perlucidum to be cryptogenic (status unknown) over much of its range, but there are several recent occurrences in harbors or on man-made structures where it is known to be introduced. These include the Gulf of Mexico, Florida, Guam, Hawaii, and the Pacific Coast of Panama. It is a common member of the fouling community throughout this range and was likely introduced through ship fouling. It can overgrow a wide range of organisms, including some commercially important species such as cultured mussels.

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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
Smithsonian Environmental Research Center

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