Nonindigenous Aquatic Species of the Mississippi River Basin

Mississippi River Basin

•Intentional / Sport Fishing

–Salmonids, Centrarchids

•Bait Releases

–Minnows, shiners, dace, etc.

•Aquarium Releases / Escapes

•Stocked for Forage

–Shads, shiners

•Pet Escapes / Releases

–Reptiles

•Canal Connections

•Stock Contamination

•Ballast Water

•Aquaculture escapes

•Stocked for Biocontrol

–Carps

•Stock for Conservation

•Unknown

ALL SPECIES


	This is a list of pathways of introductions. The pie chart shows relative percentages of number of species by pathway. Almost one-third of all species were introduced for sportfishing, one-quarter were bait releases, etc. Foreign – biocontrol, aquariums, ballast water, sport (Brown trout).