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Show I IIncrease Increase Sea Harvest HarvestBy I By adding tertillers fertWers fertWere to sea w- w wa- wa wter water wa water , - ter , thus increasing the growth of ofthe ofthe ofthe the plants on which $ fish fth feed feedmarine , marine research workers have haveincreased haveincreased haveincreased increased the weight of fish ten tenUrnes tentimes tentimes tentimesImportant Urnes times UrnesImportant timesImportant Important fish tests are being beingcarried beingcarried beingcarried carried out in a small smaU lake in the thewest thewest thewest west of ot Scotland under Sir JohnGraham John JohnGraham JohnGraham Graham Kerr , noted marine biologist biolo biolo- biologist biologist - gist gistScientists Scientists are working on the thetheory thetheory thetheory theory that sea fish can cnn be multi multi- multiplied multiplied multiplied - plied by increasing their sea plant plantfo plantfootf planttodU fo footf by adding addini nitrogen and phos phos- phosphates phosphates phosphates - - phates |