NAS Alert System



The 10 most recent alerts are available at RSS

Total of 2800 alerts match your criteria. Click on each Specimen ID to get details about the collection.
Specimen IDDateSpeciesNew AreaAlert Risk Map Comments
1656916 3/2/2021 zebra mussel
Dreissena polymorpha
State: WA
County: King (WA)
Drainage: Puget Sound (17110019)
1656906 3/1/2021 sailfin armored catfish
Pterygoplichthys sp.
State: MI
County: Washtenaw (MI)
Drainage: Huron (04090005)
1656904 3/1/2021 lionfish
Pterois volitans/miles
County: Cameron (TX)
Drainage: South Laguna Madre (12110208)
1656905 3/1/2021 Chanchita
Cichlasoma dimerus
Drainage: Little Manatee (03100203)
1656903 2/28/2021 alligatorweed
Alternanthera philoxeroides
Drainage: San Diego (18070304)
1656899 2/26/2021 East Asian river prawn
Macrobrachium nipponense
County: Georgetown (SC)
Drainage: Coastal Carolina (03040208)
1656892 2/26/2021 Rainbow Shiner
Notropis chrosomus
State: TN
County: Bradley (TN)
Drainage: Hiwassee (06020002)
1656865 2/19/2021 Arapaima
Arapaima sp.
State: FL
County: Lee (FL)
Drainage: Caloosahatchee (03090205)
1656866 2/19/2021 Blackchin Tilapia
Sarotherodon melanotheron
County: Manatee (FL)
Drainage: Sarasota Bay (03100201)
1656778 2/16/2021 New Zealand mudsnail
Potamopyrgus antipodarum
County: Montgomery (PA)
Drainage: Schuylkill (02040203)
1655840 2/9/2021 European frogbit
Hydrocharis morsus-ranae
Drainage: Sandusky (04100011)
1655561 2/8/2021 magnificent bryozoan
Pectinatella magnifica
State: IA
County: Johnson (IA)
Drainage: Middle Iowa (07080208)
1655462 1/28/2021 parrot feather
Myriophyllum aquaticum
County: Dukes (MA)
1655282 1/11/2021 Asian Swamp Eel
Monopterus albus
County: Sarasota (FL)
Drainage: Sarasota Bay (03100201)
1655271 12/31/2020 common reed
Phragmites australis
County: Latah (ID)
Drainage: Palouse (17060108)
1655272 12/31/2020 common reed
Phragmites australis
County: Benewah (ID)
Drainage: Hangman (17010306)
1655266 12/31/2020 Oscar
Astronotus ocellatus
County: Bartow (GA)
Drainage: Etowah (03150104)
1655269 12/31/2020 giant salvinia
Salvinia molesta
County: Wilkinson (MS)
Drainage: Buffalo (08060206)
1655263 12/30/2020 New Zealand mudsnail
Potamopyrgus antipodarum
County: York (PA)
Drainage: Lower Susquehanna (02050306)
1655105 12/23/2020 African Jewelfish
Hemichromis letourneuxi
County: Polk (FL)
1655251 12/17/2020 Oriental Weatherfish
Misgurnus anguillicaudatus
State: GA
County: Clarke (GA)
Drainage: Upper Oconee (03070101)
1655250 12/16/2020 East Asian river prawn
Macrobrachium nipponense
Country: US
State: SC
County: Charleston (SC)
Drainage: Edisto River (03050206)
1655228 12/15/2020 Indo-Pacific swimming crab
Charybdis hellerii
State: GA
County: Glynn (GA)
Drainage: Cumberland-St. Simons (03070203)
1655227 12/15/2020 Australian spotted jellyfish
Phyllorhiza punctata
County: Dare (NC)
Drainage: Albemarle (03010205)
1655216 12/15/2020 Australian spotted jellyfish
Phyllorhiza punctata
County: Beaufort (SC)
Drainage: St. Helena Island (03050210)


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. [2021]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [3/7/2021].

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 Matthew Neilson. For queries involving invertebrates, contact Amy Benson.