NAS Alert System



The 10 most recent alerts are available at RSS

Total of 2366 alerts match your criteria. Click on each Specimen ID to get details about the collection.
Specimen IDDateSpeciesNew AreaAlert Risk Map Comments
1524137 12/7/2018 Common Carp
Cyprinus carpio
Drainage: Everglades (3090202)
1523192 12/6/2018 alligatorweed
Alternanthera philoxeroides
County: Virginia Beach (VA)
*Bonus* Last reported in 1996 for Virginia Beach County
1523935 12/4/2018 alligatorweed
Alternanthera philoxeroides
County: Hopkins (TX)
1523963 12/4/2018 crested floating-heart
Nymphoides cristata
County: Henderson (TX)
Drainage: Upper Neches (12020001)
1522776 12/4/2018 Virile Crayfish, Northern Crayfish
Faxonius virilis
State: SC
County: York (SC)
Drainage: Lower Catawba (3050103)
1464312 12/4/2018 curly-leaf pondweed
Potamogeton crispus
County: Tripp (SD)
Drainage: Ponca (10150001)
1523929 12/3/2018 European frogbit
Hydrocharis morsus-ranae
County: Orange (NY)
1523926 12/3/2018 European frogbit
Hydrocharis morsus-ranae
Drainage: Rondout (2020007)
1523921 11/30/2018 Silver Carp
Hypophthalmichthys molitrix
County: Black Hawk (IA)
Drainage: Middle Cedar (7080205)
1523825 11/29/2018 New Zealand mudsnail
Potamopyrgus antipodarum
Drainage: Gallatin (10020008)
1523904 11/29/2018 sailfin armored catfish
Pterygoplichthys sp.
County: Comal (TX)
Drainage: Middle Guadalupe (12100202)
1522668 11/29/2018 Eastern Newt
Notophthalmus viridescens
Country: US
State: WA
County: Whatcom (WA)
Drainage: Nooksack (17110004)
*Bonus* First non-native occurrence in the country.
1523190 11/27/2018 a cladoceran
Diaphanosoma fluviatile
State: MI
County: Berrien (MI)
Drainage: Lake Michigan (4060200)
1523014 11/26/2018 Moorish Idol
Zanclus cornutus
County: Miami-Dade (FL)
1522990 11/21/2018 freshwater jellyfish
Craspedacusta sowerbyi
Drainage: Seneca (3060101)
1523007 11/21/2018 Red Swamp Crayfish
Procambarus clarkii
State: TX
County: Lubbock (TX)
Drainage: Yellow House Draw (12050001)
1522815 11/19/2018 Chinese mysterysnail
Cipangopaludina chinensis
Drainage: Upper Delaware (2040101)
1522757 11/15/2018 Red Swamp Crayfish
Procambarus clarkii
State: DE
County: New Castle (DE)
Drainage: Brandywine-Christina (2040205)
1522666 11/14/2018 crested floating-heart
Nymphoides cristata
Drainage: Everglades (3090202)
1522670 11/14/2018 southern cattail
Typha domingensis
State: ID
County: Bannock (ID)
Drainage: Portneuf (17040208)
1522669 11/14/2018 Chinese mysterysnail
Cipangopaludina chinensis
County: Bonner (ID)
Drainage: Pend Oreille Lake (17010214)
1522622 11/14/2018 giant rams-horn snail
Marisa cornuarietis
Drainage: Everglades (3090202)
1522650 11/9/2018 southern cattail
Typha domingensis
County: La Salle (IL)
1522659 11/9/2018 southern cattail
Typha domingensis
County: Peoria (IL)
Drainage: Lower Illinois-Lake Chautauqua (7130003)
1522660 11/9/2018 southern cattail
Typha domingensis
County: Bureau (IL)
Drainage: Lower Illinois-Senachwine Lake (7130001)

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Take Pride in America logoU.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: Pam Fuller - NAS Program (
Page Last Modified: Wednesday, October 24, 2018


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. [2019]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/19/2019].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted. For queries involving fish, please contact Pam Fuller. For queries involving invertebrates, contact Amy Benson.