Molt Search

The emerging invasion by European green crab (Carcinus maenas) threatens marine resources in Washington. Molted shells can serve as an early indicator of the presence of European green crab, and Molt Search surveys are one tool for early detection to reduce the spread and impact of this invasive species. Mapped below are the locations of all Molt Search surveys, which include crustaceans of any species (and sometimes no molts at all). For more information, visit wsg.washington.edu/moltsearch.