. Commercial fisheries review. Fisheries; Fish trade. 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


. Commercial fisheries review. Fisheries; Fish trade. 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 amount of steel consumed in the memufacture of cans), an increase of 12 percent when compared with the corresponding month in 1951. This is based on a November 2k report issued by the Bureau of the Census,. For the first nine months of this year, metal-can shipments for fishery products totaled 85,582 short tons of steel as compared with 78,971 short tons of steel during January-September 1951. NOTE: STATISTICS COVER ALL COMMERCIAL AND CAPTIVE PLANTS KNOWN TO BE PRODUCING METAL CANS. REPORTED IN BASE BOXES OF STEEL CONSUMED IN THE MANUFACTURE OF CANS, THE DATA FOR FISHERY PRODUCTS ARE CONVERTED TO TONS OF STEEL BY USING THE FACTOR: 23,0 BASE BOXES OF STEEL EQUAL ONE SHORT TON OF Please note that


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Keywords: ., book, bookcentury1900, booksubjectfisheries, booksubjectfishtrade