The yield of our American fisheries can be increased 46 per cent during a National emergency. The 1938 yield of the fisheries of the United States and Alaska was 4,254,000,000 pounds. Under conditions of a war-time emergency necessitating greater supplies of food and industrial by-products, this yield could be increased to 4,628,000,000 pounds in 3 or 4 years and eventually a sustained total of about 6,200,000,000 pounds could be produced each year. Minor modification of methods of utilization will permit an increase in food production from the fisheries of 86 per cent.