Show I I Increase Sea Harvest I IBy By adding to sea Water water water wa 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 noted marine biolo biolo- gist Scientists are working on the theory that sea fish can be multiplied multiplied multiplied multi multi- plied by increasing their sea-plant sea food by adding nitrogen and |