Alert System User Statistics



Total Users
955

StateSubscribers
California189
New York189
Florida185
Oregon177
Pennsylvania174
Washington172
Michigan161
Texas159
Wisconsin156
Idaho156
Minnesota150
Ohio150
Illinois149
Louisiana146
Nevada143
Indiana140
Montana139
Colorado138
Alabama137
Mississippi134
Wyoming134
Maryland134
Georgia130
New Hampshire130
Virginia130
Massachusetts130
North Carolina129
New Jersey129
Utah129
Maine128
Vermont127
Arizona124
Alaska123
Delaware122
Connecticut122
Iowa121
Missouri120
South Carolina120
Kansas119
Tennessee118
Oklahoma117
West virginia117
Arkansas116
Rhode Island115
New Mexico114
North Dakota113
South Dakota112
Hawaii112
Kentucky110
Nebraska108
District of Columbia104
Puerto Rico89
GroupSubscribers
Fishes333
Marine Fishes287
Mollusks-Bivalves275
Crustaceans-Crayfish230
Mollusks-Gastropods227
Amphibians-Frogs193
Crustaceans-Crabs189
Mammals187
Reptiles-Snakes183
Plants181
Reptiles-Turtles180
Amphibians-Salamanders177
Crustaceans-Shrimp173
Mollusks-Cephalopods162
Crustaceans-Copepods153
Reptiles-Crocodilians152
Crustaceans-Amphipods149
Crustaceans-Cladocerans146
Crustaceans-Isopods144
Reptiles-Lizards140
Crustaceans-Mysids136
Crustaceans-Barnacles114
Annelids-Oligochaetes112
Coelenterates-Hydrozoans111
Entoprocts103
Coelenterates-Scyphozoan80
Mollusks-Nudibranchs69
Bryozoans66
Crustaceans-Lobsters59
Tunicates58
Sponges58
Rotifers57
Crustaceans-Ostracods53
Coelenterates-Anthozoan52
Annelids-Polychaetes52
Ectoprocts49
Nebaliaceans45
Annelids-Hirundinea45
Cumaceans45
Polyplacophors45
Algae36
Platyhelminthes35
Amphibians-Caecilians30
Birds7
SpeciesNameSubscribers
zebra mussel - Dreissena polymorpha 370
Northern Snakehead - Channa argus 308
quagga mussel - Dreissena bugensis 300
Silver Carp - Hypophthalmichthys molitrix 268
Bighead Carp - Hypophthalmichthys nobilis 260
Black Carp - Mylopharyngodon piceus 260
Round Goby - Neogobius melanostomus 232
Ruffe - Gymnocephalus cernua 208
lionfish - Pterois volitans/miles 134
Rusty Crayfish - Faxonius rusticus 84
hydrilla - Hydrilla verticillata 82
Red Swamp Crayfish - Procambarus clarkii 80
wandering hydrilla - Hydrilla verticillata 71
whorled hydrilla - Hydrilla verticillata 70
common water - Eichhornia crassipes 66
starry stonewort - Nitellopsis obtusa 63
giant salvinia - Salvinia molesta 56
water chestnut - Trapa bispinosa 53
water chestnut - Trapa natans 51
Cuban Treefrog - Osteopilus septentrionalis 42
New Zealand mudsnail - Potamopyrgus antipodarum 6
green crab - Carcinus maenas 4
Eurasian watermilfoil - Myriophyllum spicatum 4
Grass Carp - Ctenopharyngodon idella 4
yellow floating - Nymphoides peltata 4
parrot feather - Myriophyllum aquaticum 4
flowering rush - Butomus umbellatus 4
Brazilian waterweed - Egeria densa 3
red - Melanoides tuberculata 3
variable - Myriophyllum heterophyllum 3
giant applesnail - Pomacea maculata 3
channeled applesnail - Pomacea canaliculata 2
Prussian carp - Carassius gibelio 2
Chinese mitten crab - Eriocheir sinensis 2
Australian redclaw crayfish - Cherax quadricarinatus 2
brittle waternymph - Najas minor 2
Chinese mysterysnail - Cipangopaludina chinensis 2
marbled crayfish - Procambarus virginalis 2
basket clam - Corbicula fluminea 2
Carolina fanwort - Cabomba caroliniana 2
Blue Catfish - Ictalurus furcatus 2
Cuban bulrush - Cyperus blepharoleptos 1
Flathead Catfish - Pylodictis olivaris 1
bigeye lates - Lates mariae 1
American Bullfrog - Lithobates catesbeianus 1
Grass Carp (diploid) - Ctenopharyngodon idella 1
cutleaf watermilfoil - Myriophyllum pinnatum 1
Nile perch - Lates niloticus 1
Northern Pike - Esox lucius 1
Panther Grouper - Chromileptes altivelis 1
mud bithynia - Bithynia tentaculata 1
Yellow Bass - Morone mississippiensis 1
Freshwater Tubenose Goby - Proterorhinus semilunaris 1
crested floating - Nymphoides cristata 1
curly - Potamogeton crispus 1
a calanoid copepod - Eurytemora affinis 1
East Asian river prawn - Macrobrachium nipponense 1
purple loosestrife - Lythrum salicaria 1
floating primrose - Ludwigia peploides 1
Sea Lamprey - Petromyzon marinus 1
Lowland Cichlid - Herichthys carpintis 1
hybrid watermilfoil - Myriophyllum sibiricum × spicatum 1
Spotted Bass - Micropterus punctulatus 1
European ear snail - Radix auricularia 1
holly - Najas marina 1
Virile Crayfish - Faxonius virilis 1
unidentified rams - Helisoma sp. 1
suckermouth catfish - Hypostomus sp. 1
spiny waterflea - Bythotrephes longimanus 1
Cane Toad - Rhinella marina 1
Suckermouth Catfish - Hypostomus plecostomus 1
Regal Demoiselle - Neopomacentrus cyanomos 1
northern hydrilla - Hydrilla verticillata 1
Jaguar Guapote - Parachromis managuensis 1
red discus - Symphysodon discus 1
six petal water primrose - Ludwigia hexapetala 1
Tanganyika lates - Lates angustifrons 1
Asian Swamp Eel - Monopterus albus 1
African Jewelfish - Hemichromis letourneuxi 1
floatingheart - Nymphoides sp. 1
common reed - Phragmites australis 1
American white waterlily - Nymphaea odorata 1
Chanchita - Cichlasoma dimerus 1
fishhook waterflea - Cercopagis pengoi 1
Alabama Bass - Micropterus henshalli 1
West Indian spongeplant - Limnobium laevigatum 1
waterwheel plant - Aldrovanda vesiculosa 1
Goldline Snakehead - Channa aurolineata 1
Arizona Treefrog - Dryophytes wrightorum 1
ranae - Hydrocharis morsus1
grassy arrowhead - Sagittaria graminea 1
Midas Cichlid - Amphilophus citrinellus 1
eastern happy - Astatotilapia calliptera 1
Japanese mysterysnail - Cipangopaludina japonica 1
White Perch - Morone americana 1
red devil - Amphilophus labiatus 1
water milfoil - Myriophyllum 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. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/23/2024].

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.