In the tidal flats of Puget Sound, the inland sea that laps at Seattle and the coasts of Washington State, a quiet emergency is unfolding. European green crabs, a small but voracious invasive species, have been spreading through the region’s estuaries, and tribal nations and scientists are now racing to stop them before they cause lasting ecological damage.
These crabs, native to European coastlines, are notorious worldwide for outcompeting local species, tearing up eelgrass beds that shelter young fish, and preying on native clams and other shellfish that are both ecologically vital and economically important to coastal communities. In Puget Sound, several Native American tribes hold treaty rights to fish and harvest shellfish in these waters, giving them a direct stake in protecting the ecosystem.
To fight back, teams of tribal members and researchers have set up extensive trapping operations, pulling thousands of crabs from the water in an effort to prevent the population from exploding further. The work is labor-intensive and ongoing, reflecting how difficult it can be to contain an invasive species once it gains a foothold, especially in a landscape as ecologically rich and interconnected as Puget Sound.
To learn more about this trapping campaign and what’s at stake for the Sound’s marine life, read the full report from The New York Times.
Source: Racing to Contain Invasive Green Crabs in Puget Sound (rss.nytimes.com). English version produced with AI assistance.
Image: Louisiana Sea Grant, BY 2.0 (via Openverse).