NAS Alert System



The 10 most recent alerts are available at RSS

Total of 2489 alerts match your criteria. Click on each Specimen ID to get details about the collection.
Specimen IDDateSpeciesNew AreaAlert Risk Map Comments
1613833 8/16/2019 European frogbit
Hydrocharis morsus-ranae
County: Ottawa (MI)
1613826 8/15/2019 freshwater jellyfish
Craspedacusta sowerbyi
County: Rockland (NY)
1613824 8/14/2019 flowering rush
Butomus umbellatus
County: Douglas (MN)
Drainage: Long Prairie (07010108)
1610639 8/14/2019 narrow-leaved cattail
Typha angustifolia
Drainage: Tiffin (04100006)
1613822 8/14/2019 pirapatinga, red-bellied pacu
Piaractus brachypomus
County: Rock Island (IL)
Drainage: Lower Rock (07090005)
1610640 8/14/2019 banded mysterysnail
Viviparus georgianus
County: Lenawee (MI)
Drainage: Tiffin (04100006)
1613759 8/13/2019 sacred lotus
Nelumbo nucifera
State: RI
County: Providence (RI)
Drainage: Narragansett (01090004)
1613747 8/12/2019 American alligator
Alligator mississippiensis
County: Union (NC)
Drainage: Lower Catawba (03050103)
1613734 8/12/2019 zebra mussel
Dreissena polymorpha
County: Llano (TX)
Drainage: Buchanan-Lyndon B. Johnson Lakes (12090201)
1613718 8/8/2019 bloody red shrimp
Hemimysis anomala
State: PA
County: Erie (PA)
1613722 8/8/2019 Red Swamp Crayfish
Procambarus clarkii
State: PA
County: Bucks (PA)
Drainage: Crosswicks-Neshaminy (02040201)
1613702 8/6/2019 zebra mussel
Dreissena polymorpha
County: Mahnomen (MN)
Drainage: Eastern Wild Rice (09020108)
1613699 8/5/2019 monoecious hydrilla
Hydrilla verticillata [monoecious]
State: IL
County: Lake (IL)
Drainage: Des Plaines (07120004)
1613679 8/2/2019 Oriental Weatherfish
Misgurnus anguillicaudatus
State: VA
County: Fairfax (VA)
Drainage: Middle Potomac-Anacostia-Occoquan (02070010)
1613671 8/2/2019 Asian tapeworm
Schyzocotyle acheilognathi
State: NY
County: Otsego (NY)
Drainage: Upper Susquehanna (02050101)
1613662 8/1/2019 Cuban Treefrog
Osteopilus septentrionalis
County: Middlesex (MA)
Drainage: Charles (01090001)
1613670 8/1/2019 Black Carp
Mylopharyngodon piceus
State: IN
County: Warrick (IN)
1613658 8/1/2019 Northern Snakehead
Channa argus
Drainage: Big Sunflower (08030207)
1613664 8/1/2019 Northern Snakehead
Channa argus
County: Worcester (MD)
1613666 8/1/2019 Red Swamp Crayfish
Procambarus clarkii
County: Maricopa (AZ)
Drainage: Hassayampa (15070103)
1613655 7/31/2019 American alligator
Alligator mississippiensis
County: Livingston (MI)
Drainage: Shiawassee (04080203)
1613656 7/31/2019 Oscar
Astronotus ocellatus
County: Fayette (GA)
Drainage: Upper Flint (03130005)
1613650 7/25/2019 water lettuce
Pistia stratiotes
County: Kent (MI)
Drainage: Lower Grand (04050006)
1613649 7/24/2019 freshwater jellyfish
Craspedacusta sowerbyi
County: Union (LA)
Drainage: Bayou D'Arbonne (08040206)
1613642 7/24/2019 cuchia
Monopterus cuchia
State: LA
County: Orleans (LA)
Drainage: Eastern Louisiana Coastal (08090203)


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 [8/17/2019].

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