Catch of A. European green crabs (Carcinus maenas) and B. Dungeness crabs (Metacarcinus magister) based on distance from the estuary mouth. Crabs were trapped overnight at eight sites in Willapa Bay, Washington, 2–3 August 2024. Boxplots show the result for 10 traps at each site.

 
 
  Part of: Garcia L, Ruesink JL, Suhrbier A, Beugli D, Flannery R, Parker L, Grason EW (2026) Field tests of trophic interactions between non-native European green crabs (Carcinus maenas) and non-native clams along an estuarine gradient. Aquatic Invasions 21(3): 167-184. https://doi.org/10.3391/ai.2025.21.3.203309