The Deep Range

This story takes place about 100 years in the future, when the earth’s population is fed principally from the sea–on whale products or from plankton farms. Its hero is Walter Franklin, a grounded space engineer now assigned to a submarine patrol tending the whale herds.
DEEP RANGE vibrates with exciting adventures of the mysterious sea: a fight with a giant squid at 12,000 feet, a search for a great sea serpent, & a heroic rescue of a damaged submarine–all vividly & plausibly portrayed.