Alert System User Statistics



Total Users
1079

StateSubscribers
California233
New York219
Pennsylvania207
Florida207
Oregon203
Washington189
Wisconsin188
Texas187
Michigan180
Nevada176
Idaho174
Illinois174
Minnesota173
Ohio172
Louisiana166
Alabama163
Montana162
Indiana162
Colorado155
Massachusetts154
Wyoming154
Mississippi154
Arizona152
North Carolina152
New Hampshire151
Vermont151
New Jersey150
Georgia150
Virginia149
Utah148
Maine148
Maryland148
Connecticut145
Alaska144
Arkansas141
Rhode Island137
South Carolina137
Iowa136
Oklahoma136
Missouri135
Delaware135
West virginia132
Tennessee132
Kansas131
Hawaii129
Kentucky128
South Dakota127
New Mexico126
North Dakota125
Nebraska121
District of Columbia114
Puerto Rico99
GroupSubscribers
Fishes403
Marine Fishes387
Mollusks-Bivalves330
Crustaceans-Crayfish275
Mollusks-Gastropods273
Amphibians-Frogs244
Crustaceans-Crabs229
Reptiles-Snakes228
Mammals228
Amphibians-Salamanders224
Reptiles-Turtles219
Plants216
Crustaceans-Shrimp213
Crustaceans-Amphipods198
Crustaceans-Copepods194
Crustaceans-Cladocerans192
Crustaceans-Mysids188
Mollusks-Cephalopods188
Reptiles-Crocodilians186
Crustaceans-Isopods182
Reptiles-Lizards166
Coelenterates-Hydrozoans151
Annelids-Oligochaetes148
Crustaceans-Barnacles147
Entoprocts141
Mollusks-Nudibranchs111
Coelenterates-Scyphozoan106
Crustaceans-Lobsters104
Crustaceans-Ostracods97
Sponges97
Tunicates95
Annelids-Polychaetes92
Coelenterates-Anthozoan87
Ectoprocts86
Polyplacophors83
Cumaceans83
Nebaliaceans81
Bryozoans66
Rotifers59
Annelids-Hirundinea40
Platyhelminthes28
Birds11
SpeciesNameSubscribers
zebra mussel - Dreissena polymorpha 436
Northern Snakehead - Channa argus 352
quagga mussel - Dreissena rostriformis 337
Silver Carp - Hypophthalmichthys molitrix 313
Black Carp - Mylopharyngodon piceus 310
Bighead Carp - Hypophthalmichthys nobilis 305
Round Goby - Neogobius melanostomus 274
Ruffe - Gymnocephalus cernua 250
lionfish - Pterois volitans/miles 154
hydrilla - Hydrilla verticillata 31
dioecious hydrilla - Hydrilla verticillata [dioecious] 28
monoecious hydrilla - Hydrilla verticillata [monoecious] 28
Rusty Crayfish - Faxonius rusticus 27
common water - Eichhornia crassipes 25
Red Swamp Crayfish - Procambarus clarkii 24
starry stonewort - Nitellopsis obtusa 24
giant salvinia - Salvinia molesta 23
water chestnut - Trapa natans 22
water chestnut - Trapa bispinosa 22
Cuban Treefrog - Osteopilus septentrionalis 15
New Zealand mudsnail - Potamopyrgus antipodarum 3
red - Melanoides tuberculata 2
African Jewelfish - Hemichromis letourneuxi 1
flowering rush - Butomus umbellatus 1
Asian clam - Corbicula fluminea 1
Northern Pike - Esox lucius 1
Alabama Bass - Micropterus henshalli 1
red devil - Amphilophus labiatus 1
giant applesnail - Pomacea maculata 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
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
Lowland Cichlid - Herichthys carpintis 1
European ear snail - Radix auricularia 1
Chinese mitten crab - Eriocheir sinensis 1
a calanoid copepod - Eurytemora affinis 1
Bullseye Snakehead - Channa marulius 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. [2021]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [8/2/2021].

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.