September 8, 2016 — Invasive European green crabs have been swarming up and down both coasts, but because of the flow of ocean currents around the Pacific Northwest, inland waters of BC and Washington State were thought to be relatively safe. Well, on Sept. 2, volunteers announced they’d recently caught a single crab on San Juan Island, in Puget Sound. Although it’s just one for now—and it could have hitched a ride on someone’s fishing gear, or another way—it’s the first confirmed sighting in these inland waters.
Starting next week, a “rapid response team” will be out laying traps and trying to figure out if there are more crabs out there. The aliens pose a threat to the region’s native species.
“I’ll admit, I have a lot of respect for these crabs,” Sean McDonald, a research scientist at the University of Washington, told me. McDonald works with the Washington Sea Grant’s Crab Team, a network of citizen scientists that serves as an early alert for the crustacean’s encroachment. They caught the crab, and will be organizing next week’s response. “They’re tough and resilient,” he continued. “They make a living anywhere they can.”