Specimen Information

Limnoperna fortunei
Limnoperna fortunei
(Golden Mussel)
Mollusks-Bivalves
Exotic

Specimen ID1932828
GroupMollusks-Bivalves
GenusLimnoperna
Speciesfortunei
Common NameGolden Mussel
StateCA
CountyContra Costa
LocalityContra Costa Water District treatment plant forebay (Mallard Reservoir)
Mapping AccuracyAccurate
HUC8 NameSuisun Bay
HUC8 Number18050001
HUC10 NameMount Diablo Creek-Frontal Suisun Bay Estuaries
HUC10 Number1805000103
HUC12 NameMount Diablo Creek-Frontal Suisun Bay Estuaries
HUC12 Number180500010302
Map
Collection Day26
Collection Month4
Collection Year2026
Year AccuracyActual
CommentsFirst detection of settled mussels in this water body. Species confirmed via DNA.
Record TypeNAS sighting report
VerifierCalifornia Department of Fish and Wildlife
Photo
Four very yellow-colored golden mussels sit in a white dish near a ruler.


Disclaimer:

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 [6/3/2026].

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.