Alert System User Statistics



Total Users
1151

StateSubscribers
California241
New York228
Florida220
Pennsylvania215
Oregon212
Washington203
Wisconsin200
Texas193
Michigan189
Minnesota186
Idaho185
Nevada182
Illinois181
Ohio178
Louisiana172
Alabama170
Montana168
Indiana168
North Carolina162
Mississippi161
Wyoming161
Colorado160
Massachusetts159
Georgia159
Arizona158
New Jersey158
Virginia158
Vermont157
New Hampshire156
Maryland156
Utah155
Maine152
Connecticut150
Alaska149
Arkansas145
South Carolina145
Iowa144
Delaware143
West virginia140
Rhode Island140
Tennessee139
Missouri139
Oklahoma139
Kansas136
Kentucky133
North Dakota133
Hawaii133
South Dakota132
New Mexico131
Nebraska126
District of Columbia121
Puerto Rico104
GroupSubscribers
Fishes428
Marine Fishes400
Mollusks-Bivalves348
Crustaceans-Crayfish292
Mollusks-Gastropods291
Amphibians-Frogs257
Reptiles-Snakes243
Mammals243
Crustaceans-Crabs241
Amphibians-Salamanders237
Reptiles-Turtles234
Plants231
Crustaceans-Shrimp226
Crustaceans-Amphipods206
Mollusks-Cephalopods204
Crustaceans-Copepods202
Reptiles-Crocodilians200
Crustaceans-Cladocerans198
Crustaceans-Mysids196
Crustaceans-Isopods193
Reptiles-Lizards180
Coelenterates-Hydrozoans159
Annelids-Oligochaetes158
Crustaceans-Barnacles156
Entoprocts149
Coelenterates-Scyphozoan114
Mollusks-Nudibranchs110
Crustaceans-Lobsters103
Crustaceans-Ostracods96
Sponges96
Tunicates95
Annelids-Polychaetes91
Coelenterates-Anthozoan86
Ectoprocts85
Cumaceans83
Polyplacophors82
Nebaliaceans80
Bryozoans75
Rotifers65
Annelids-Hirundinea49
Platyhelminthes35
Amphibians-Caecilians14
Algae11
Birds11
SpeciesNameSubscribers
zebra mussel - Dreissena polymorpha 459
Northern Snakehead - Channa argus 370
quagga mussel - Dreissena bugensis 356
Silver Carp - Hypophthalmichthys molitrix 335
Black Carp - Mylopharyngodon piceus 327
Bighead Carp - Hypophthalmichthys nobilis 326
Round Goby - Neogobius melanostomus 287
Ruffe - Gymnocephalus cernua 256
lionfish - Pterois volitans/miles 164
hydrilla - Hydrilla verticillata 48
Rusty Crayfish - Faxonius rusticus 48
Red Swamp Crayfish - Procambarus clarkii 44
monoecious hydrilla - Hydrilla verticillata [monoecious] 43
dioecious hydrilla - Hydrilla verticillata [dioecious] 43
common water - Eichhornia crassipes 39
starry stonewort - Nitellopsis obtusa 36
giant salvinia - Salvinia molesta 34
water chestnut - Trapa bispinosa 33
water chestnut - Trapa natans 32
Cuban Treefrog - Osteopilus septentrionalis 27
red - Melanoides tuberculata 3
New Zealand mudsnail - Potamopyrgus antipodarum 3
giant applesnail - Pomacea maculata 2
Eurasian watermilfoil - Myriophyllum spicatum 1
Goldline Snakehead - Channa aurolineata 1
Arizona Treefrog - Dryophytes wrightorum 1
Midas Cichlid - Amphilophus citrinellus 1
eastern happy - Astatotilapia calliptera 1
channeled applesnail - Pomacea canaliculata 1
Chanchita - Cichlasoma dimerus 1
red devil - Amphilophus labiatus 1
Alabama Bass - Micropterus henshalli 1
Grass Carp - Ctenopharyngodon idella 1
Tanganyika lates - Lates angustifrons 1
Lowland Cichlid - Herichthys carpintis 1
European ear snail - Radix auricularia 1
Spotted Bass - Micropterus punctulatus 1
Chinese mitten crab - Eriocheir sinensis 1
a calanoid copepod - Eurytemora affinis 1
unidentified rams - Helisoma sp. 1
suckermouth catfish - Hypostomus sp. 1
Cane Toad - Rhinella marina 1
Suckermouth Catfish - Hypostomus plecostomus 1
Regal Demoiselle - Neopomacentrus cyanomos 1
Jaguar Guapote - Parachromis managuensis 1
red discus - Symphysodon discus 1
Panther Grouper - Chromileptes altivelis 1
African Jewelfish - Hemichromis letourneuxi 1
flowering rush - Butomus umbellatus 1
Nile perch - Lates niloticus 1
Asian clam - Corbicula fluminea 1
Northern Pike - Esox lucius 1
Blue Catfish - Ictalurus furcatus 1
bigeye lates - Lates mariae 1
American Bullfrog - Lithobates catesbeianus 1


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. [2022]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/3/2022].

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 general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.