Specimen Information

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

Specimen ID252762
GroupTunicates
GenusDidemnum
Speciesvexillum
Common Namea colonial sea squirt
StateWA
CountyKitsap
LocalityPort Washington Marina, Port Washington Narrows [Puget Sound], Bremerton.
Mapping AccuracyAccurate
HUC8 NamePuget Sound
HUC8 Number17110019
HUC10 NamePort Orchard Sound
HUC10 Number1711001910
HUC12 NamePort Orchard Sound
HUC12 Number171100191000
Map
Collection Day29
Collection Month5
Collection Year2006
Year AccuracyActual
Potential Pathwayunknown
Statusestablished
Reference 1
Ref. Number:18741
Author:Puget Sound Action Team.
Date:2007
Title:Washington State's Response to an Invasion of Non-native Tunicates.
Publisher:Office of the Govenor, State of Washington.
Pages:29
CommentsLarge colonies on pilings ~0.5 m below surface at a very low tides (about 3.5-4 m below surface at high tide.
Record TypeLiterature
Earliest Recordlocale
Freshwater/MarineMarine


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Citation information: U.S. Geological Survey. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/21/2026].

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