Crangonyx pseudogracilis
Crangonyx pseudogracilis
(northern river crangonyctid)
Crustaceans-Amphipods
Native Transplant
Collection Info
Point Map
Species Profile
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12 results for Crangonyx pseudogracilis (northern river crangonyctid)
Download Data

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
158982 CASan Luis ObispoBrizzolara Creek at Highland Drive, 100 yards E of railroad tracks2002 18060006 Central Coastalcollected
158983 CASan Luis ObispoBrizzolara Creek at Mustang Village bridge2002 18060006 Central Coastalcollected
158981 CASan Luis ObispoBrizzolara Creek at N side of Highland Drive and railroad tracks2002 18060006 Central Coastalcollected
158980 CASan Luis ObispoStenner Creek at Brizzolara Creek confluence2002 18060006 Central Coastalcollected
158976 CASan Luis ObispoStenner Creek at Olive Street2002 18060006 Central Coastalcollected
158977 CASan Luis ObispoStenner Creek at Olive Street2002 18060006 Central Coastalcollected
158978 CASan Luis ObispoStenner Creek at Olive Street2002 18060006 Central Coastalcollected
243002 ORColumbiaMultnomah Channel, Sauvie Island-Gilbert River Boat Ramp2002 17090012 Lower Willametteestablished
242998 ORMultnomahColumbia Slough, Incendiary Bridge2002 17090012 Lower Willametteestablished
243000 WACowlitzColumbia River, Longview drainage ditch, Solo Storage entrance2002 17080003 Lower Columbia-Clatskanieestablished
243001 WACowlitzColumbia River, Longview drainage ditch, Solo Storage entrance2002 17080003 Lower Columbia-Clatskanieestablished
242999 WACowlitzKalama River, Kalama River Boat Launch2002 17080003 Lower Columbia-Clatskanieestablished

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.

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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 [2/23/2026].

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