7/16/2025: Hydrocharis morsus-ranae found in Erie County (Pennsylvania)
USGS Nonindigenous Aquatic Species Alert - 07/16/25 - European frogbit (Hydrocharis morsus-ranae)...

7/16/2025: Ottelia alismoides found in the Lake Maurepas Subbasin (Livingston County, Louisiana)
USGS Nonindigenous Aquatic Species Alert - 07/16/25 - duck-lettuce (Ottelia alismoides) was found...

7/16/2025: Mylopharyngodon piceus found in the Lower Black Subbasin (Lawrence County, Arkansas)
USGS Nonindigenous Aquatic Species Alert - 07/16/25 - Black Carp (Mylopharyngodon piceus) was fou...

7/15/2025: Najas minor found in the Middle Kansas Subbasin (Shawnee County, Kansas)
USGS Nonindigenous Aquatic Species Alert - 07/15/25 - brittle waternymph (Najas minor) was found ...

7/15/2025: Astronotus ocellatus found in the Cohansey-Maurice Subbasin (Cumberland County, New Jersey)
USGS Nonindigenous Aquatic Species Alert - 07/15/25 - Oscar (Astronotus ocellatus) was found in t...

7/9/2025: Piaractus brachypomus found in the Satilla Subbasin (Pierce County, Georgia)
USGS Nonindigenous Aquatic Species Alert - 07/09/25 - pirapitinga, red-bellied pacu (Piaractus br...

7/9/2025: Channa argus found in Greene County (Arkansas)
USGS Nonindigenous Aquatic Species Alert - 07/09/25 - Northern Snakehead (Channa argus) was found...

7/9/2025: Ictalurus furcatus found in the Lower Savannah Subbasin (Jasper County, South Carolina)
USGS Nonindigenous Aquatic Species Alert - 07/09/25 - Blue Catfish (Ictalurus furcatus) was found...

7/7/2025: Hydrocharis morsus-ranae found in Tompkins County (New York)
USGS Nonindigenous Aquatic Species Alert - 07/07/25 - European frogbit (Hydrocharis morsus-ranae)...

7/7/2025: Monopterus cuchia found in the Oklawaha Subbasin (Florida)
USGS Nonindigenous Aquatic Species Alert - 07/07/25 - cuchia (Monopterus cuchia) was found in the...

6/13/2019: Alligator mississippiensis found in the Upper Ohio Subbasin (Pennsylvania)
USGS Nonindigenous Aquatic Species Alert - 06/13/19 - American alligator (Alligator mississippien...

6/11/2019: Xiphophorus maculatus found in Martin County (Florida)
USGS Nonindigenous Aquatic Species Alert - 06/11/19 - Southern Platyfish (Xiphophorus maculatus) ...

6/11/2019: Monopterus albus found in New York
USGS Nonindigenous Aquatic Species Alert - 06/11/19 - Asian Swamp Eel (Monopterus albus) was foun...

6/10/2019: Cipangopaludina chinensis found in the Cohansey-Maurice Subbasin (Salem County, New Jersey)
USGS Nonindigenous Aquatic Species Alert - 06/10/19 - Chinese mysterysnail (Cipangopaludina chine...

6/7/2019: Mylopharyngodon piceus found in the Highland-Pigeon Subbasin (Union County, Kentucky)
USGS Nonindigenous Aquatic Species Alert - 06/07/19 - Black Carp (Mylopharyngodon piceus) was fou...

6/6/2019: Proterorhinus semilunaris found in the Cheboygan Subbasin (Cheboygan County, Michigan)
USGS Nonindigenous Aquatic Species Alert - 06/06/19 - Freshwater Tubenose Goby (Proterorhinus sem...

6/4/2019: Potamopyrgus antipodarum found in New Mexico
USGS Nonindigenous Aquatic Species Alert - 06/04/19 - New Zealand mudsnail (Potamopyrgus antipoda...

6/3/2019: Cipangopaludina chinensis found in the Lower White Subbasin (Monroe County, Indiana)
USGS Nonindigenous Aquatic Species Alert - 06/03/19 - Chinese mysterysnail (Cipangopaludina chine...

5/31/2019: Piaractus brachypomus found in the Medina Subbasin (Bandera County, Texas)
USGS Nonindigenous Aquatic Species Alert - 05/31/19 - pirapatinga, red-bellied pacu (Piaractus br...

5/31/2019: Trachemys scripta found in Virginia Beach City County (Virginia)
USGS Nonindigenous Aquatic Species Alert - 05/31/19 - Red-eared Slider (Trachemys scripta) was fo...

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