Reference List

This list includes references used to derive specimen records.

Results also available in CSV (click to export table to spreadsheet)
Ref IDTypeAuthorDateTitle
26266 DatabaseCalifornia Department of Fish and Game.2009California Aquatic Non-native Organism Database (CANOD).
24102 Web PageCohen, A.N.2011The Exotics Guide: Non-native Marine Species of the North American Pacific Coast.
23819 Journal ArticleCohen, C.S., L. McCann, T. Davis, L. Shaw, and G. Ruiz2011Discovery and significance of the colonial tunicate Didemnum vexillum in Alaska.
46339 Journal ArticleFowler, A.E., A.M.H. Blakeslee, A. Davinack, R. Aguilar, M. Anderson, C. Benadon, H.H.C. Choong, L. Green-Gavrielidis, S.R. Greenberg, E. Hartshorn, N. Hobbs, S. Labbe, K. Larson, M. McCuller, D.M. Moloney, S.K. Parsons, C. Stancil, C. Thornber, J. Pederson, and J.T. Carlton2025Caribbean Creep meets Chesapeake Creep: marine bioinvasions and community shifts along the Mid-Atlantic Coast, USA
45549 Journal ArticleKnorek, Z.R., B.P. Hansen, S.S. Rumrill, S.D. Groth, and A.W.E. Galloway2020Seasonal variability in a nascent population of a non-indigenous colonial ascidian (Didemnum vexillum) near Winchester Bay, Oregon
19300 ReportLeClair, L., A. Pleus, and J. Schultz.20092007-2009 Biennial Report: Invasive Species Tunicate Response in the Puget Sound Region.
19763 OtherNichols, Janna.2011Invasive Tunicate Reports 2010-2011.
39003 Journal ArticlePederson, J., J.T. Carlton, C. Bastidas, A. David, S. Grady, L. Green-Gavrielidis, N. Hobbs, C. Kennedy, J. Knack, M. McCuller, B. O’Brien, K. Osborne, S. Pankey, and T. Trott20212019 Rapid Assessment Survey of marine bioinvasions of southern New England and New York, USA, with an overview of new records and range expansions
18741 ReportPuget Sound Action Team.2007Washington State's Response to an Invasion of Non-native Tunicates.
24153 Web PageUSGS - Woods Hole Science Center.2004Marine Invasive Species, Didemnum lahillei, a colonial tunicate; ascidian; sea squirt, New England Offshore Occurrences and Images.
24155 Web PageUSGS - Woods Hole Science Center.2004Marine Nuisance Species, Didemnum vexillum, a colonial tunicate; ascidian; sea squirt - California coastal locations.
24162 Web PageUSGS - Woods Hole Science Center.2008Marine Nuisance Species, Didemnum, a colonial tunicate; ascidian; sea squirt - New England Coast Location Table.


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The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/5/2025].

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