Specimen Information

Corbicula fluminea
Corbicula fluminea
(Asian clam)

Specimen ID1687204
Common NameAsian clam
CountyNew London
LocalityRogers Lake
Mapping AccuracyAccurate
HUC8 NameOutlet Connecticut River
HUC8 Number01080205
HUC10 NameEightmile River-Connecticut River
HUC10 Number0108020509
HUC12 NameJoshua Creek-Connecticut River
HUC12 Number010802050905
Collection Day15
Collection Month7
Collection Year2021
Year AccuracyActual
Potential Pathwayreleased | hitch hiker gut passage | dispersed
CommentsFrom the Rare Freshwater Mussel Survey, Rogers Lake, Lyme and Old Lyme, CT, SWCA Project No. 48737 report: Asian clams (Corbicula sp) were observed in the portion of Survey Area 1 associated with the public beach. . . . A total of 7 individuals were found in two quadrates near the beach area. . . Numerous corbicula shells were observed scattered through the in-water portion of the public beach area. Neither live Corbicula nor shells were observed elsewhere in the lake. Asian clams appear limited to a small portion of the lake around the public beach and it may be possible to greatly reduce or eradicate this species from the lake. It is our understanding that the only method currently being used to control Asian clams is collecting them by hand. In survey area 1 of 2021 mussel study - located near the public beach.
Record TypeNAS sighting report
VerifierSteve Johnson, Ph.D. (SWCA Environmental Consultants)
Number Collected7


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Citation information: U.S. Geological Survey. [2022]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [5/20/2022].

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