Angus MacDoughall has been harvesting seaweed on and off since he was 17 when his fishing work dried up. Now at 73, he still harvests three to four days each month. “It gets you out of the house ...

Ishga addresses these concerns by hand harvesting seaweed along the tideline or by using “sea tractors” for specific species.

Seaweed farmed this way usually reaches 10 feet or more in length before being harvested, per the U.S. National Oceanic and Atmospheric Administration. After harvesting, the seaweed is "cleaned ...