6/27/2025: Hydrilla verticillata found in Morgan County (Ohio)
USGS Nonindigenous Aquatic Species Alert - 06/27/25 - wandering hydrilla (Hydrilla verticillata) ...

6/3/2025: Hydrilla verticillata found in Pike County (Pennsylvania)
USGS Nonindigenous Aquatic Species Alert - 06/03/25 - wandering hydrilla (Hydrilla verticillata) ...

5/27/2025: Osteopilus septentrionalis found in the Loggy Bayou Subbasin (Webster County, Louisiana)
USGS Nonindigenous Aquatic Species Alert - 05/27/25 - Cuban Treefrog (Osteopilus septentrionalis)...

5/22/2025: Pomacea maculata found in the Middle Guadalupe Subbasin (Comal County, Texas)
USGS Nonindigenous Aquatic Species Alert - 05/22/25 - giant applesnail (Pomacea maculata) was fou...

5/16/2025: Hypophthalmichthys molitrix found in Kankakee County (Illinois)
USGS Nonindigenous Aquatic Species Alert - 05/16/25 - Silver Carp (Hypophthalmichthys molitrix) w...

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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