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Show I " Increase Sea Harvest By adding fertiliers to sea water, wa-ter, thus increasing the growth of the plants on which fish feed, marine research workers have increased the weight of fish ten times. Important fish tests are being carried out in a small lake in the west of Scotland under Sir John Graham Kerr, notedmarine biologist. biolo-gist. Scientists are working on the theory that sea fish can be multiplied multi-plied by increasing their sea-plant food by adding nitrogen and phosphates. |