Specimen Information

Didemnum vexillum
Didemnum vexillum
(a colonial sea squirt)
Tunicates
Exotic

Specimen ID272577
GroupTunicates
GenusDidemnum
Speciesvexillum
Common Namea colonial sea squirt
StateAK
CountySitka
LocalityPacific Ocean, at Whiting Harbor in Sitka Sound
Mapping AccuracyAccurate
HUC8 NameBaranof Island
HUC8 Number19010212
HUC10 NameSitka Sound-Frontal Pacific Ocean
HUC10 Number1901021212
HUC12 NameSitka Sound-Frontal Pacific Ocean
HUC12 Number190102121206
Map
Collection Month6
Collection Year2010
Year AccuracyActual
Potential Pathwayunknown
Statusestablished
Reference 1
Ref. Number:23819
Author:Cohen, C.S., L. McCann, T. Davis, L. Shaw, and G. Ruiz
Date:2011
Title:Discovery and significance of the colonial tunicate Didemnum vexillum in Alaska.
Journal:Aquatic Invasions
Volume:6
Issue:3
Pages:263-271
CommentsFound growing on oyster cage.
Record TypeLiterature
Freshwater/MarineMarine


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Citation information: U.S. Geological Survey. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/16/2025].

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