Apparatus and method of fishing for swimming fish

Abstract From the Canadian patent

A method of fishing for swimming fish while nourishing the fish with sea water containing plankton and apparatus therefor. Fish eggs are individually disposed in openings in trays which are fed with fresh sea water containing plankton until the eggs are at least partially hatched, whereupon freshly hatched swimming fish pass through the openings with the flow of sea water. The trays are connected with first compartments for freshly hatched swimming fish for feeding sea water and swimming fish thereto. The fish compartments are connected to a compartment of a net having a mesh sufficiently fine to contain larger swimming fish and to prevent larger fish from entering the net compartment …