Rock Crab, Green Crab
Crabs are often found in lobster traps. The Rock Crab is Maine's native crab, up to 6 inches shell size, while the smaller Green Crab is an invasive Northern European species which had spread all along the Maine coast by 1953. A newer invasive crab species is the Asian Shore Crab which is slightly smaller than the Green Crab. They have been reported as far east as Schoodic. There is a commericial market for Rock Crab, caught chiefly as by-catch in the lobster fishery.