Jon McGee of New England Sea Farms in Guilford said he harvested roughly 10,000 pounds of sugar kelp on his farm last spring, and he expects to grow roughly five times that volume this year.

KITTERY, Maine (WMTW) — Seven months ago, Maine business partners Krista Rosen and Inga Potter were hauling in their harvest from their kelp farm off the coast of Kittery Point. Fast forward to ...