Here is an assortment of animals introduced around the country linked to some step in the aquaculture process.
	Corbicula fluminea  may have come in with the Pacific oyster many years ago
	Orconectes rusticus (rusty crayfish) may have been introduced into northern states from the bait industry for fishing
	Melanoides tuberculatus (red-rim melania) popular in the aquarium trade, is an intermediate host for trematode parasites, the Oriental lungfluke and the liver fluke, which can affect humans. This snail has been found in 7 states including FL, TX, NV.
	Myocastor coypus   imported from South America for fur and to control aquatic vegetation. It’s doing a lot of damage to salt marshes in Maryland.
	Trachemys scripta, the red-eared slider has always been a popular aquarium pet for children. Established in several states. Illegal to sell hatchlings in US now.
	Potamopyrgus antipodarum, the New Zealand mudsnail, is carpeting the bottom of the middle snake river in Idaho and near Yellowstone National Park. It may compete with the few native snails there.
	Marisa cornuarietis (giant ramshorn) another common aquarium snail native to Central America found in FL, ID, and TX .