NAS - Nonindigenous Aquatic Species
Cohen, A.N. 2011. The Exotics Guide: Non-native Marine Species of the North American Pacific Coast. http://www.exoticsguide.org/didemnum_sp_a.
Reference Number: 24102 Type: Web Page Author: Cohen, A.N. Date (year): 2011 Title:The Exotics Guide: Non-native Marine Species of the North American Pacific Coast. URL: http://www.exoticsguide.org/didemnum_sp_a Accessed on: Created on: Keywords:
Didemnum vexillum CA - Humboldt Bay (near Eureka, CA) CA - Bodega Bay Harbor CA - Tomales Bay (just north of San Francisco) CA - San Francisco Bay area CA - Half Moon Bay [Miramar, CA] CA - Morro Bay (just NW of San Luis Obispo) CA - Pacific Ocean at Port San Luis
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. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/3/2026].
Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted.
For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.