Specimen Information

Limnoperna fortunei
Limnoperna fortunei
(Golden Mussel)
Mollusks-Bivalves
Exotic
Collection Info
Point Map
Species Profile
Animated Map
Impacts

Specimen ID1932794
GroupMollusks-Bivalves
GenusLimnoperna
Speciesfortunei
Common NameGolden Mussel
StateCA
CountySan Joaquin
LocalitySmith Canal, American Legion Park
Mapping AccuracyAccurate
HUC8 NameSan Joaquin Delta
HUC8 Number18040003
HUC10 NameFivemile Creek-San Joaquin River
HUC10 Number1804000305
HUC12 NameBurns Cutoff-San Joaquin River
HUC12 Number180400030501
Map
Collection Day12
Collection Month4
Collection Year2026
Year AccuracyActual
CommentsWashed up Styrofoam found in park has a huge cluster of mussels. Species verified via morphology.
Record TypeNAS sighting report
VerifierJ. Trueman, CA Department of Fish and Wildlife
Number Collected5000
Year Classadult, juv.
Photo
Clusters of mussels cover a chunk of dirty Styrofoam laying in the grass on the banks of a canal,
Two golden mussels with visible byssal threads sit in a baggie of water.
Clusters of mussels cover a chunk of dirty Styrofoam laying in the grass on the banks of a canal,

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 [5/7/2026].

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For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.