Stalking the Invasive Green Crab in Harpswell Sound

Aidan Short ’15 is unusually familiar with the invasive green crabs in Harpswell Sound: specifically, with the contents of their stomachs.


Stalking the Invasive Green Crab from Bowdoin College on Vimeo.

The green crab has a reputation for devouring soft-shell clams, the species behind one of Maine’s most lucrative fisheries. But how much of the crab’s diet is really made up of clams? What other creatures are falling prey to this clawed invader? And how does all of that vary by habitat?

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To tag along on another scientific expedition in Harpswell Sound,
check out this photo essay.

These are some questions that Short is exploring through his research project “What’s for Dinner? A molecular analysis of the feeding habits of the green crab Carcinus maenas in Harpswell Sound.” Short has been working on the water and in the lab, using a combination of crab trapping, dissection, and molecular techniques to figure out just what these crabs are swallowing.

Funded this summer by a Doherty Coastal Studies Research Fellowship, Short will continue his research as part of a year-long honors project in collaboration with biology assistant professor David Carlon, who directs Bowdoin’s Coastal Studies Center.

Learn more about the research that’s been going on at the Coastal Studies Center this summer.

thumb:Ground-mount installation on College-owned land at the former Navy base.