The reports have come from up and down the coast of Maine: Blue crabs have been spotted around dock pilings, pulled up in lobster traps and found washed up on beaches.
The crabs, usually associated with coastal Maryland and the Chesapeake Bay, have been showing up more often and in larger numbers in the Gulf of Maine over the past few years. To better understand the shifting population, scientists are now asking fishermen and members of the public to report their sightings through an online survey.
