Alert System User Statistics



Total Users
1116

StateSubscribers
California221
New York204
Florida197
Oregon195
Pennsylvania193
Washington187
Wisconsin176
Michigan172
Texas170
Idaho168
Minnesota165
Illinois161
Nevada161
Ohio159
Louisiana152
Montana151
Indiana149
Alabama146
Colorado144
Wyoming143
North Carolina141
Virginia140
Massachusetts140
Mississippi140
Georgia140
Maryland139
Utah139
New Jersey138
Vermont137
New Hampshire137
Arizona136
Alaska134
Maine132
Connecticut130
Iowa127
Delaware126
South Carolina125
Arkansas124
West virginia122
Hawaii121
Missouri121
Oklahoma121
Rhode Island121
Kansas120
Tennessee120
North Dakota117
South Dakota115
New Mexico115
Kentucky112
Nebraska110
District of Columbia105
Puerto Rico91
GroupSubscribers
Fishes374
Marine Fishes339
Mollusks-Bivalves302
Crustaceans-Crayfish249
Mollusks-Gastropods248
Amphibians-Frogs203
Crustaceans-Crabs202
Reptiles-Snakes198
Mammals197
Plants195
Amphibians-Salamanders190
Reptiles-Turtles188
Crustaceans-Shrimp186
Mollusks-Cephalopods170
Crustaceans-Copepods170
Crustaceans-Amphipods170
Crustaceans-Cladocerans164
Reptiles-Crocodilians164
Crustaceans-Isopods158
Crustaceans-Mysids158
Reptiles-Lizards145
Annelids-Oligochaetes128
Coelenterates-Hydrozoans128
Crustaceans-Barnacles127
Entoprocts120
Coelenterates-Scyphozoan92
Mollusks-Nudibranchs88
Crustaceans-Lobsters81
Sponges77
Tunicates75
Crustaceans-Ostracods74
Annelids-Polychaetes71
Coelenterates-Anthozoan67
Ectoprocts66
Bryozoans64
Cumaceans64
Polyplacophors62
Nebaliaceans62
Rotifers54
Annelids-Hirundinea41
Platyhelminthes29
Algae16
Amphibians-Caecilians15
Birds10
SpeciesNameSubscribers
zebra mussel - Dreissena polymorpha 422
Northern Snakehead - Channa argus 340
quagga mussel - Dreissena bugensis 332
Silver Carp - Hypophthalmichthys molitrix 308
Bighead Carp - Hypophthalmichthys nobilis 299
Black Carp - Mylopharyngodon piceus 297
Round Goby - Neogobius melanostomus 260
Ruffe - Gymnocephalus cernua 232
lionfish - Pterois volitans/miles 144
hydrilla - Hydrilla verticillata 56
Rusty Crayfish - Faxonius rusticus 56
Red Swamp Crayfish - Procambarus clarkii 52
dioecious hydrilla - Hydrilla verticillata 48
monoecious hydrilla - Hydrilla verticillata 48
common water - Eichhornia crassipes 44
starry stonewort - Nitellopsis obtusa 43
giant salvinia - Salvinia molesta 38
water chestnut - Trapa bispinosa 38
water chestnut - Trapa natans 35
Cuban Treefrog - Osteopilus septentrionalis 27
New Zealand mudsnail - Potamopyrgus antipodarum 5
flowering rush - Butomus umbellatus 4
Grass Carp - Ctenopharyngodon idella 4
red - Melanoides tuberculata 3
Eurasian watermilfoil - Myriophyllum spicatum 3
green crab - Carcinus maenas 3
giant applesnail - Pomacea maculata 2
variable - Myriophyllum heterophyllum 2
Asian clam - Corbicula fluminea 2
yellow floating - Nymphoides peltata 2
Brazilian waterweed - Egeria densa 2
parrot feather - Myriophyllum aquaticum 2
bigeye lates - Lates mariae 1
American Bullfrog - Lithobates catesbeianus 1
Grass Carp (diploid) - Ctenopharyngodon idella 1
channeled applesnail - Pomacea canaliculata 1
common reed - Phragmites australis 1
American white waterlily - Nymphaea odorata 1
Chanchita - Cichlasoma dimerus 1
hybrid watermilfoil - Myriophyllum × spicatum 1
Tanganyika lates - Lates angustifrons 1
Prussian carp - Carassius gibelio 1
Alabama Bass - Micropterus henshalli 1
Northern Pike - Esox lucius 1
Blue Catfish - Ictalurus furcatus 1
Panther Grouper - Chromileptes altivelis 1
cutleaf watermilfoil - Myriophyllum pinnatum 1
Nile perch - Lates niloticus 1
African Jewelfish - Hemichromis letourneuxi 1
floatingheart - Nymphoides sp. 1
Goldline Snakehead - Channa aurolineata 1
Arizona Treefrog - Dryophytes wrightorum 1
Midas Cichlid - Amphilophus citrinellus 1
eastern happy - Astatotilapia calliptera 1
red devil - Amphilophus labiatus 1
water milfoil - Myriophyllum 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
mud bithynia - Bithynia tentaculata 1
floating primrose - Ludwigia peploides 1
purple loosestrife - Lythrum salicaria 1
curly - Potamogeton crispus 1
Chinese mitten crab - Eriocheir sinensis 1
a calanoid copepod - Eurytemora affinis 1
Australian redclaw crayfish - Cherax quadricarinatus 1
Freshwater Tubenose Goby - Proterorhinus semilunaris 1
Lowland Cichlid - Herichthys carpintis 1
European ear snail - Radix auricularia 1
Spotted Bass - Micropterus punctulatus 1
holly - Najas marina 1
clade C hydrilla - Hydrilla verticillata 1
brittle waternymph - Najas minor 1
Chinese mysterysnail - Cipangopaludina chinensis 1
unidentified rams - Helisoma sp. 1
suckermouth catfish - Hypostomus sp. 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. [2023]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [3/20/2023].

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.