The Ontario government is regulating 10 species and four groups of similar species under the Ontario Invasive Species Act (ISA)

Invasive species are plants, animals, and micro-organisms that, when introduced outside of their natural environment.

European frog-bit is an invasive aquatic plant native to Europe and parts of Asia and Africa.

Marbled crayfish was found in a pond in the Burlington, Ontario area. This is the first time marbled crayfish has been found in Ontario.