Table 3.

Washington’s classification of invasive species and their management. Adapted from [152].

Species’ Classification	Invasive Risk	Management
Level 1	High	Prevention and immediate measures
Level 2	High	Long-term disinfestation
Level 3	Moderate to High	Prevention, rapid response or other appropriate measures.
Type A 1	Low	Department-approved management of the species’ benefits
Type B	Low or unknown	Can be used in aquariums, live food markets, or as non-domesticated pets.
Type C	Low or unknown	-

¹ Only for non-native aquatic species that have recognized beneficial properties.