Petersburg Pilot -

Underwater and out of sight are the makings of a major Alaska industry with two anchor crops that clean the planet while pumping out lots of cash: shellfish and seaweed.

Alaskans have now applied for over 2,000 acres of new or expanding undersea farms, double the footprint from two years ago, ranging in size from .02 acres at Halibut Cove to nearly 300 acres at Craig.

Nearly 60 percent of the newest applicants plan to grow kelp with the remainder growing a mix of kelp and/or Pacific oysters, said Cynthia Pring-Ham, aquatic farming coordinator at the Alaska Dept. of Fish and Game which iss...