Specimen Information

Crangonyx floridanus
(Florida crangonyctid, a freshwater amphipod)
Crustaceans-Copepods
Native Transplant
Collection Info
Point Map
Species Profile
Animated Map

Specimen ID623634
GroupCrustaceans-Copepods
GenusCrangonyx
Speciesfloridanus
Common NameFlorida crangonyctid, a freshwater amphipod
StateCA
CountyContra Costa
LocalitySan Joaquin River, Driftwood Marina (Antioch)
Mapping AccuracyAccurate
HUC8 NameSan Joaquin Delta
HUC8 Number18040003
HUC10 NameMiddle River-San Joaquin River
HUC10 Number1804000309
HUC12 NameMarkley Canyon-San Joaquin River
HUC12 Number180400030907
Map
Collection Day27
Collection Month7
Collection Year2005
Year AccuracyActual
Potential Pathwayshipping ballast water | hitch hiker on aquatic plants?
Statusestablished
Reference 1
Ref. Number:26266
Author:California Department of Fish and Game.
Date:2009
Title:California Aquatic Non-native Organism Database (CANOD).
Publisher:California Department of Fish and Game, Office of Spill Prevention and Response.
Record TypeLiterature
Freshwater/MarineFreshwater

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. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/5/2025].

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