Federal, state, and tribal officials are ramping up containment efforts against the invasive European green crab across North America, deploying millions in funding, intensive trapping, and commercial fishing initiatives to combat a species threatening multi-billion-dollar fisheries, native eelgrass habitats, and coastal ecosystems from Alaska to Maine.
Federal Response and the 2022 Alaska Discovery
Resource managers have monitored the northward spread of the European green crab for years, driven by the species’ aggressive predation on native marine life and its potential to devastate local industries. Recognized as one of the most invasive species in the marine environment, the crab destroys eelgrass beds used by larval fish for shelter, outcompetes native Dungeness crabs, and devours juvenile salmon and king crab. The species arrived in North America during the 1800s, likely transported in ballast water from merchant ships.
The threat materialized in Alaska on July 19, 2022, when the Metlakatla Indian Community Department of Fish & Wildlife confirmed the first observation of invasive green crabs in the state on the Annette Islands Reserve. In response, local authorities partnered with federal programs to increase trapping efforts, collect research samples, and expand monitoring across southern Southeast Alaska.
Washington State Emergency Measures and Funding Allocation
Along the West Coast, Washington state officials have mobilized an interagency response to address exploding populations identified in coastal areas and tribal lands. Following an emergency request submitted by the Washington Department of Fish and Wildlife director to the governor, the state implemented a six-year management plan for European green crab running through June 2031.
To fund these countermeasures, the Washington State Legislature and the governor appropriated just over $12 million for the two-year state budget spanning July 1, 2025, through June 2027. Approximately $9 million of that funding is channeled through WDFW to co-managers, tribes, and partners.
State operations deploy more than 25 staff members and 1,000 traps during field seasons to suppress populations that threaten Washington’s cultivated shellfish industry—an economic sector contributing more than $100 million annually to the state economy—alongside commercial fisheries valued in the hundreds of millions.
New England’s Commercial and Grassroots Experiments
On the East Coast, where millions of European green crabs have inhabited coastal waters for centuries, communities are attempting to control populations by building commercial markets rather than relying solely on government eradication. The crabs have severely impacted Atlantic rock crabs, juvenile lobsters, and regional soft-shell clam harvests. In Maine, clam landings dropped from 7.8 million meat pounds in 1978 to 1.3 million pounds in 2025 due to predation by the invasive species.
Entrepreneurs are attempting to transform the ecological threat into a viable seafood sector by targeting molting crabs, which possess a softer shell and higher culinary demand. Mike Masi, operator of a commercial cultivation enterprise that pays fishermen $3 per crab compared to 8 cents for hard-shell variants, stated that practically everyone dislikes them and they are trying to turn them into a premium seafood product. Other regional initiatives process the crabs into pet treats, fish sauce, and specialty spirits.
Logistical Obstacles
Despite growing grassroots interest, establishing a large-scale commercial fishery faces steep logistical challenges. Experts point out that while coastal areas contain an abundance of the species, processing and distribution infrastructure remains scarce.
Puget Sound Discoveries and the Expanding Pacific Threat
The geographic spread of the invasion continues to trigger rapid local containment. In the Pacific Northwest, researchers confirmed the presence of European green crabs in the northern Whidbey Basin following a discovery by a volunteer who spotted a crab shell at Similk Beach on the Swinomish Tribal Reservation. Program leads with the Washington Sea Grant Crab Team noted that subsequent urgent trapping recovered a concerning number of individuals whose sizes indicated they had occupied the location for at least two years.
While New England states rely largely on small-scale commercial adaptation, Pacific states continue extensive multi-million-dollar extraction programs. Operations in Washington state work to prevent permanent ecological establishment in sensitive estuarine ecosystems.
