Specimen Information

Hypophthalmichthys molitrix
Hypophthalmichthys molitrix
(Silver Carp)
Fishes
Exotic

Specimen ID1878416
GroupFishes
GenusHypophthalmichthys
Speciesmolitrix
Common NameSilver Carp
StateIA
CountyJones
LocalityFlooded quarry adjacent to Wapsipinicon River, approximately 1.5 miles downstream from Anamosa dam
Mapping AccuracyAccurate
HUC8 NameLower Wapsipinicon
HUC8 Number07080103
HUC10 NameMill Creek-Wapsipinicon River
HUC10 Number0708010302
HUC12 NameDutch Creek-Wapsipinicon River
HUC12 Number070801030201
Map
Collection Day7
Collection Month7
Collection Year2025
Year AccuracyActual
Potential Pathwaydispersed
CommentsAngler report to the Iowa Department of Natural Resources
Record TypeNAS sighting report
VerifierIowa Department of Natural Resources
Freshwater/MarineFreshwater
Number Collected1


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 [1/20/2026].

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