- European Green Crab: Will they, Alaska Department of Fish and . . .
In sum, European green crab have been introduced globally where they have negatively impacted nearshore ecosystems Human-mediated and subsequent natural spread of invasive crabs could result in new introductions to Alaska (Fig 3)
- Invasive Green Crab: Look Out | NOAA Fisheries
How did they get here? Green crabs were first introduced to North America in the 1800s, likely hitching a ride in the ballast water of merchant ships from Europe
- Invasive European green crabs expanding in Alaska
European green crabs are increasing their range in Southeast Alaska, with a recent detection of crab molts in Refuge Cove in Ketchikan during a University of Alaska Southeast–Ketchikan class
- Invasive green crabs reach Alaska, threatening fisheries
The invasive European Green Crabs that have wreaked havoc on clam fisheries in Maine and the West Coast have now reached Alaska, where they could threaten subsistence, personal use, and commercial fisheries, including salmon
- Invasive European Green Crab found north of Ketchikan
The European Green Crab was first discovered near Alaska’s coast in July 2022 by the Metlakatla Indian Community on Annette Island, which is around 50 miles south of Ketchikan
- European Green Crabs in Southeast Alaska - ArcGIS StoryMaps
Over the years, they spread down the U S East Coast, eventually reaching the West Coast, where they were first detected in the early 1900s From there, green crabs rode the ocean currents further north on the Pacific Coast
- Look Out for Invasive European Green Crab
How do they get here? European green crabs probably came to the U S in ships’ ballast water They may also be transported with shellfish, equipment, or packing materials in aquaculture operations Larval green crabs can also spread from one invaded area to another in ocean currents
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