The table below is not intended to be a comprehensive list of all invasive species in Maryland, but includes species of concern to the Maryland Invasive Species Council (MISC). This list includes all updates approved as of the April 18, 2024 MISC meeting.

Scientific Name	Common Name	Type	Habitat	Regulated in Mid-Atlantic / US
Branta canadensis (non-migratory)	Canada goose (non-migratory)	Bird	Aquatic/Wetland	N/A
Channa argus	Northern snakehead	Fish	Aquatic	DE, MD, PA, USFWS
Channa maculata	Snakehead mullet	Fish	Aquatic	DE, MD, PA, USFWS
Channa spp.	Asian snakeheads	Fish	Aquatic	DE, MD, PA, USFWS
Clarias batrachus	Walking catfish	Fish	Aquatic	DE, MD, USFWS
Ctenopharyngodon idella	Grass carp	Fish	Aquatic	DE, MD
Cygnus olor	Mute swan	Bird	Aquatic/Wetland	N/A
Cyprinella lutrensis	Red shiner	Fish	Aquatic	MD
Felis catus (unowned & owned outdoor)	Cat, free-range (unowned & owned outdoor)	Mammal	Terrestrial	N/A
Gambusia affinis	Western mosquitofish	Fish	Aquatic	N/A
Gymnocephalus cernuus	Eurasian ruffe	Fish	Aquatic	MD, PA
Hypophthalmichthys molitrix	Silver carp	Fish	Aquatic	MD, PA
Hypophthalmichthys nobilis	Bighead carp	Fish	Aquatic	MD, PA, USFWS
Ictalurus furcatus	Blue catfish	Fish	Aquatic	DE, MD
Misgurnus anguillicaudatus	Oriental weatherfish	Fish	Aquatic	MD
Monopterus albus	Asian swamp eel	Fish	Aquatic	MD
Myiopsitta monachus	Quaker parakeet	Bird	Terrestrial	MD
Mylopharyngodon piceus	Black carp	Fish	Aquatic	MD, PA, VA, USFWS
Myocastor coypus	Nutria	Mammal	Wetland/Aquatic	VA
Neogobius melanostomus	Round goby	Fish	Aquatic	MD, PA
Notropis volucellus	Mimic shiner	Fish	Aquatic	MD
Passer domesticus	House sparrow	Bird	Terrestrial	VA
Pylodictis olivaris	Flathead catfish	Fish	Aquatic	DE, MD
Rattus norvegicus	Norway rat	Mammal	Terrestrial	VA
Scardinius erythrophthalmus	Rudd	Fish	Aquatic	MD, PA
Sturnus vulgaris	European starling	Bird	Terrestrial	MD, VA
Sus scrofa (feral type)	Wild pig	Mammal	Terrestrial/Wetland	VA
Trachemys scripta elegans	Red-eared slider	Reptile	Aquatic/Wetland	N/A
Trachemys scripta scripta	Yellowbelly slider	Reptile	Aquatic/Wetland	N/A
Trachemys scripta	Slider	Reptile	Aquatic/Wetland	N/A
Vandellia cirrhosa	Vampire fish	Fish	Aquatic	MD