The average American eats about 15.9 pounds of seafood a year, a figure expected to rise to 25 pounds within 30 years.

Since many waters are becoming fished-out, new supply sources may be necessary to meet demand.Food experts predict increasing emphasis on aquaculture, or farm-raised seafood, first pioneered in Norway 20 years ago. Norway currently is the world's leading supplier of farm-raised Atlantic salmon. According to the Norwegian Salmon Marketing Council, efforts are underway to increase productivity and quality through new feeding and freezing techniques.