Michael Masi runs Southern Maine Sustainable Shellfish in York. He and Sam Sewall started molting soft-shell green crabs, which are an invasive species. They’re a huge problem for the lobsters, eating the lobster’s food sources and even baby lobsters.

As a high-school science teacher, Mike spent years teaching students about the impact of the crabs and met Sam when he was a student in high school. The two have now launched a business centered on sustainable shellfish and are hoping to source both hardshell and eventually soft-shell green grabs to Maine businesses.