Boothbay Register reports on visiting researcher’s mussel study

Boothbay Register published a University of Maine news release about a study conducted by Scott Morello, a visiting researcher at the Darling Marine Center in Walpole. Morello found mussel larvae swim toward odors from adult mussels, and swim away from odors from predators, including green crabs and dog whelks. According to his research, mussel larvae can recognize and respond to a range of odor cues when deciding whether to settle in wild beds or on aquaculture lines. The predator odors Morello used are from species that feed on older mussels, which indicates larvae assess future risk on some level when they make settlement decisions. “I wouldn’t go so far as to suggest cognition on the part of larvae, but rather that these behaviors are the outcome of selective pressures exerted by predators, or competitors, of future life stages,” he said.