the technologies they employ were developed for war

In fact, the technologies they employ were developed for war.Radar,sonar,helicopters,and spotter planes are all used to guide factory ships towards dwindling schools of fish.Long lines with hundreds of hooks or huge nets round up massive amounts of fish,along with other species,like seabirds, turtles, and dolphins.And fish are hauled up onto giant boats,complete with onboard flash freezing and processing facilities.All of these technologies have enabled us to catch fish at greater depths and farther out at sea than ever before.