Researchers have been on high alert since the 2016 discovery of the invasive European green crab in Puget Sound. So far, monitoring teams have found relatively few crabs, but experts worry that a population could grow rapidly and damage the native ecosystem. Now a collaboration of volunteers, agencies and tribes is working to stop the crab’s spread. They say intensive, early action could make the difference. A new story map from the Puget Sound Institute and the Washington Sea Grant Crab Team documents the effort.

View the story map on the Encyclopedia of Puget Sound.