Ocean engineering: food fish for a hungry world

In recent years, the fish harvest from the oceanic waters of the world has increased annually about eight percent by weight. Projected estimates indicate that the present yearly catch of food fish could be multiplied ten times without endangering the total edible marine population. Certain seacoast waters have been depleted of their food-fish supply because of unscientific overexploitation. The Japanese and Russians, in particular, have been expanding their localized fishing efforts to encompass worldwide ocean areas. To ensure continued improvement in the science and technology of catching fish in large quantities, new developments in underwater television; FM sonar; and net construction, control, and handling are imperative. And the accurate tracking and charting of the migratory habits of large schools of food fish are equally important in predicting future and seasonal areas of bountiful supply.