Maldives Industrial Fisheries Company brine in hermetically sealed can and sterilized to achieve commercial sterility by application of heat. The fish is treated by Blast or brine freezing method. The frozen species are Katsuwonus Pelamis “Skipjack” and Thunnus Albacares “Yellowfin” tuna. Fishmeal, a fertilizer as well as an essential ingredient in poultry, and fish feed, this is by product of the cannery. To reduce amount of waste exhausted from fish products, fish meal is produced from the waste fish from the cannery. Katsuobushi is the Japanese name for a specific type of smoked dried tuna. Although Katsuobushi is a form of dried skipjack, the
USS Skipjack (SS-184) upward angle developed almost immediately, forcing the submarine to surface. By the time control of the boat had been regained, the water in the torpedo room was only a few inches from the top of the water tight door, but fortunately there were no casualties, and "Skipjack" resumed the attack. The submarine then torpedoed and sank the converted seaplane tender "Okitsu Maru" (). She returned to Pearl Harbor on 7 March. Following repairs, "Skipjack" participated in performance tests on new torpedoes in cold water off the Pribilof Islands until 17 April and then headed for the Mare Island Navy Yard