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Two petri dishes each filled with baby lobsters

Rare Lobster Hatchlings Will Inform Novel DNA Research at ɫƵ

A Large Litter of Multicolored Lobsters Will Aid ɫƵ Researchers in Uncovering the Genetics Behind Rare Shell Coloration

The ɫƵis the home of two families of tiny, baby lobsters — dozens of them, each no larger than a thumbtack — which are currently being raised and studied by students and faculty as part of an ongoing, novel research project into the genetic basis for their rare coloration.

Miniature crustaceans in various shades of brown, blue, and orange have taken up residence in the University’s Arthur P. Girard Marine Science Center. There are currently 140 of these small lobsters, which hatched earlier this summer and have been molting and growing ever since.

They are the offspring of two adult female lobsters who also call ɫƵ home: Peaches, a rare, 1-in-30-million orange lobster who captured hearts everywhere when she arrived at ɫƵ last year, and Norma, a typical brown or “mottled” lobster, who arrived at ɫƵ in June. 

Over a dozen baby orange lobsters are seen in a petri dish
Five lobster larvae in various colors are seen through a dissecting microscope
A brown-colored lobster
A lobster larvae seen through a dissecting microscope
Several multicolored baby lobsters float in a petri dish. Photo by Markus Frederich.

Clockwise, from left: Over a dozen of Peaches’ offspring share her rare orange coloration; several molted larvae are shown through a dissecting microscope; dozens of the larvae show normal and even rare blue coloration; an early stage larva as seen through a dissecting microscope; and Norma, a recently acquired, normal-colored lobster. Photos courtesy of Markus Frederich.

But what can these tiny crustaceans tell us about why some lobsters are orange, or blue, or even purple or split down the middle? ɫƵ student Ruby Motulsky is trying to find out.

Motulsky (Marine Sciences, ’25), who uses them/them pronouns, is an undergraduate researcher in the  of Markus Frederich, Ph.D., professor of marine sciences at ɫƵ.

In April, Motulsky was awarded $5,000 from the Bioscience Association of Maine to fund their summer research examining the number of lobsters that share their mothers’ coloration. The work is part of a novel effort launched by Frederich this winter to decode the molecular basis for rare shell coloration through noninvasive methods. 

Ruby Motulsky holds an orange lobster and poses with Markus Frederich

Ruby Motulsky holds an egg-bearing Peaches with Prof. Markus Frederich, Ph.D. 

With its reputation for excellence in the marine sciences, ɫƵ has become a magnet for rare lobsters in recent years, housing an impressive lineup including blue, orange, yellow, split-colored, purple, and calico varieties — each with rarity ranging from 1-in-1 million to 1-in-50 million.

The baby lobsters currently being raised at ɫƵ — 100 from Peaches and 40 from Norma — will soon have even more siblings. Pineapple, another rare orange lobster housed at ɫƵ, is currently bearing eggs that are expected to hatch next spring.

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