. Commercial fisheries review. Fisheries; Fish trade. 22 COMMERCIAL FISHERIES REVIEW Vol. U, No. 12 SCOUTING METHODS FOR SKIPJACK TUNA STUDIED BY "CHARLES H. GILBERT" (CRUISE NO. 3 AND FLIQIT NO. l): A study of scouting methods for oceanic skipjack tuna Gilbert. in the central Hawaiian area was carried out by the Charles H vessel of the Service's Pacific Oceanic Fishery Investigations was accompanied by a Navy Flying Boat on this cruise, which was completed November lU. The prosecution of many of the ob- jectives was severely limited by trade winds of fresh gale force, the appar
. Commercial fisheries review. Fisheries; Fish trade. 22 COMMERCIAL FISHERIES REVIEW Vol. U, No. 12 SCOUTING METHODS FOR SKIPJACK TUNA STUDIED BY "CHARLES H. GILBERT" (CRUISE NO. 3 AND FLIQIT NO. l): A study of scouting methods for oceanic skipjack tuna Gilbert. in the central Hawaiian area was carried out by the Charles H vessel of the Service's Pacific Oceanic Fishery Investigations was accompanied by a Navy Flying Boat on this cruise, which was completed November lU. The prosecution of many of the ob- jectives was severely limited by trade winds of fresh gale force, the apparent seasonal scarcity of fish, and vessel-design shortcomings. However, bait- catching and holding operations were quite successful on the cruise. skipjack tuna This. Electro-narcosis tests on small bonefish, barracuda, puffer, and half-beaks indicated a wide range of variation between species, sizes, and individuals. The aerial survey results suggested the feasibility of surveys by plane but under bet- ter weather conditions than encountered by the Charles H. Gilbert on this cruise. FREEZIK'G TECHNIQUE FOR PRESERVING PHOSPHATE SAMPLES TESTED BY "CHARLES H. GILBERT" (CRUISE NO. 4)-' Sea-water samples from depths of 50, 300, and 500 me- ters were collected off the coast of Waianae on November 19 by the Charles H. Gilbert. Some samples were frozen for analysis to test the validity of a freez- ing technique for preservation of phosphate. Other samples collected were to be used to determine the rate of change of phosphate concentration over a period of a few hours after sampling. Initial analysis for phosphate was made immediately after samples were collected. Samples in plastic bags were simultaneously placed in an alcohol bath for freezing. The vessel returned to port on November 20. Metal Cans - Shipments for Fishery Products, September 1952 Total shipments of metal cans for fish and sea food for September this year amounted to 11,295 short tons of steel (based on the
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