Evidence of invasive crab that could wreak havoc on Alaska fisheries found near Metlakatla - Alaska Public Media

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Biologists say they found the first evidence of European green crabs on Annette Island. The crustaceans are a threat to ecosystems and commercial fisheries.

July 25, 2022

An invasive species that could wreak havoc on commercial and subsistence fisheries has been found in Alaska for the first time. Biologists with Metlakatla Indian Community say they found the first evidence of European green crabs on Annette Island, near the southern tip of Southeast Alaska, in mid-July.. They uproot eelgrass beds in search of food, which serve as habitat for herring and salmon.“They compete with juvenile Dungeness crab.

Winter says the find, credited to Sealaska Heritage Institute intern Natalie Bennett, is the first evidence of the invasive species’ presence in Alaska. Metlakatla biologists started setting traps in 2020 after a shell fragment was found in Haida Gwaii, an island chain off the coast of northern British Columbia.

 

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