One of North America’s largest fish processing plants is shutting down as  grows and owner Trident Seafoods struggles to test its 700-person workforce. The plant, on the isolated island of Akutan, is the second in the Aleutians to shut down this year, just as the billion-dollar Bering Sea pollock fishery was set to kick off.  Now, fishermen and industry leaders are anxious that they might not have places to offload their catch, and that their plants might be the next to close down, said Dan Martin, who manages a fleet of nine pollock trawlers for a company called...…One of North America’s largest fish processing plants is shutting down as  grows and owner Trident Seafoods struggles to test its 700-person workforce. The plant, on the isolated island of Akutan, is the second in the Aleutians to shut down this year, just as the billion-dollar Bering Sea pollock fishery was set to kick off.  Now, fishermen and industry leaders are anxious that they might not have places to offload their catch, and that their plants might be the next to close down, said Dan Martin, who manages a fleet of nine pollock trawlers for a company called...WW…