Farm-raised kelp is hauled aboard a barge for harvesting, Thursday April 29, 2021, off the coast of Cumberland, Maine. Maine’s seaweed farmers are in the midst of a spring harvest that is almost certain to break state records (AP Photo/Robert F. Bukaty)

Ken Sparta cuts kelp from a line during the spring harvest of farm-raised seaweed off the coast of Cumberland, Maine, Thursday, April 29, 2021. Maine’s seaweed farmers are in the midst of a spring harvest that is almost certain to break state records(AP Photo/Robert F. Bukaty)

Seaweed farmers David Leith, left, and Stewart Hunt haul in a line of kelp for harvesting, Thursday, April 29, 2021, off the coast of Cumberland, Maine. Maine’s seaweed farmers are in the midst of a spring harvest that is almost certain to break state records (AP Photo/Robert F. Bukaty)

A line of seaweed is hauled aboard a barge for harvesting, Thursday, April 29, 2021, off the coast of Cumberland, Maine. Maine’s seaweed farmers are in the midst of a spring harvest that is almost certain to break state records(AP Photo/Robert F. Bukaty)