Specimen ID Date Species New Area Alert Risk Map
NAS ARM info here
The Nonindigenous Aquatic Species Alert Risk Mapper (ARM), was developed to characterize the waterbodies at potential risk of invasion from a new nonindigenous species sighting. The ARM tool is a short-term risk assessment utilizing a nonindigenous species' current extents and development of credible scenarios of its potential movement within a drainage based on its mobility and drainage barriers (dams). Maps from ARM will indicate lakes, river reaches, and other waterbodies that are at potential risk of invasion from a new nonindigenous species sighting and will accompany the NAS Alert emails sent out to subscribers and managers.
Comments
1878173
7/9/2025
pirapitinga, red-bellied pacuPiaractus brachypomus
County: Pierce (GA) Drainage: Satilla (03070201)
1878137
7/9/2025
Northern SnakeheadChanna argus
County: Greene (AR) Drainage: Lower St. Francis (08020203)
1878082
7/7/2025
European frogbitHydrocharis morsus-ranae
County: Tompkins (NY) Drainage: Seneca (04140201)
1878096
7/7/2025
cuchiaMonopterus cuchia
Drainage: Oklawaha (03080102)
1878027
7/3/2025
Golden MusselLimnoperna fortunei
County: Kings (CA) Drainage: Tulare Lake Bed (18030012)
1877997
6/30/2025
Chinese mysterysnailCipangopaludina chinensis
County: Lincoln (GA) Drainage: Upper Savannah (03060103)
1877995
6/30/2025
KoiCyprinus rubrofuscus
County: White (GA) Drainage: Upper Chattahoochee (03130001)
1877996
6/30/2025
Chinese mysterysnailCipangopaludina chinensis
County: Cherokee (GA) Drainage: Etowah (03150104)
1877992
6/30/2025
zebra musselDreissena polymorpha
County: Garfield (CO) Drainage: Colorado Headwaters-Plateau (14010005)
1877991
6/27/2025
wandering hydrillaHydrilla verticillata
County: Morgan (OH) Drainage: Hocking (05030204)
1877982
6/26/2025
tropical seagrassHalophila stipulacea
County: Palm Beach (FL) Drainage: Florida Southeast Coast (03090206)
1877917
6/23/2025
Golden MusselLimnoperna fortunei
County: Sacramento (CA) Drainage: Lower Sacramento (18020163)
1877910
6/18/2025
Northern SnakeheadChanna argus
County: Tunica (MS) Drainage: Lower Mississippi-Helena (08020100)
1877873
6/17/2025
water chestnutTrapa natans
County: Lackawanna (PA) Drainage: Upper Susquehanna-Tunkhannock (02050106)
1877791
6/9/2025
Chinese mitten crabEriocheir sinensis
State: OR County: Clatsop (OR) Drainage: Lower Columbia (17080006)
1877789
6/9/2025
Sailfin MollyPoecilia latipinna
County: Los Angeles (CA) Drainage: San Gabriel (18070106)
1877787
6/9/2025
Red Swamp CrayfishProcambarus clarkii
County: Boone (MO) Drainage: Lower Missouri-Moreau (10300102)
1877421
6/3/2025
wandering hydrillaHydrilla verticillata
County: Pike (PA) Drainage: Lackawaxen (02040103)
1877185
5/27/2025
Cuban TreefrogOsteopilus septentrionalis
County: Webster (LA) Drainage: Loggy Bayou (11140203)
1877182
5/22/2025
giant applesnailPomacea maculata
County: Comal (TX) Drainage: Middle Guadalupe (12100202)
1877134
5/16/2025
Silver CarpHypophthalmichthys molitrix
County: Kankakee (IL) Drainage: Kankakee (07120001)
1876617
5/12/2025
OscarAstronotus ocellatus
County: Chatham (GA) Drainage: Ogeechee Coastal (03060204)
1873947
5/8/2025
tropical seagrassHalophila stipulacea
State: FL County: Miami-Dade (FL) Drainage: Florida Southeast Coast (03090206)
1873892
5/2/2025
Rusty CrayfishFaxonius rusticus
County: Larimer (CO) Drainage: Big Thompson (10190006)
1873873
5/2/2025
white pulse coralXenia umbellata
Country: US State: PR County: Salinas (PR) Drainage: Southern Puerto Rico (21010004)