part of the Gyral is shown by the tongue of 

 less than 0. 1 ug. at. /I. in the surface plot of 

 inorganic phosphate, the large Secchi disk 

 readings, and the blue color of the water. 



In conclusion, the only areas in 

 which there is an apparent source of continuous 

 mixing which should provide enrichment of the 

 surface layers are the zones of large horizontal 

 current shear in the Polar Front. It is inter- 

 esting to note that the albacore taken by the 

 J. R. Manning (cruise 19), which was operating 

 in the area concurrently with the Smith , were 

 taken at or near these zones (Shomura and 

 Otsu MS^/. For example, the best days 1 

 catch of 42 albacore (5.4/100 hooks) was made 

 on the 160 W. transect at 33 58'N. , just south 

 of the area where the surface temperature rose 

 from 58 F. to 63 F. in only 25 miles, and in 

 the area where the first sharp increase in the 

 surface phosphate occurred. 



BARNES, CLIFFORD A. and ROBERT G. 



PAQUETTE 



1954. Circulation near the Washington 

 coast. University of Washington, 

 Department of Oceanogr. , Tech. 

 Rept. 17, Ref. No. 54-1:1-31. 



BYERS, HORACE R. 



1934. The air masses of the North Pacific. 

 Bulletin of the Scripps Institution of 

 Oceanography, Technical Series 

 3(14):311-354. 



1944. General meteorology. New York: 

 McGraw-Hill, 645 pp. 



CROMWELL, TOWNSEND 



1951. Mid-Pacific oceanography; Jan. -Mar. 

 1950. U. S. Fish and Wildlife Ser- 

 vice, Spec. Sci. Rept.: Fish. 54, 

 76 pp. 



ACKNOWLEDGMENTS 



The authors wish to acknowledge 

 the help and advice of the many persons who 

 contributed to the report. First, to the per- 

 sonnel of the field party and vessel, particu- 

 larly the fishermen and engineers who manned 

 the hydrographic stations. A review of the 

 weather information tabulated in the station 

 data will reveal the adverse conditions under 

 which they often worked. Second, to the per- 

 sonnel ashore who assisted in preparing the 

 report. Mary Lynne Godfrey processed or 

 supervised the processing of most of the data. 

 John Van Landingham did most of the chemical 

 analyses afloat and ashore. Thomas S. Austin 

 advised and assisted generously in the analyses 

 and presentation of the data, and Tarn otsu 

 Nakata prepared the illustrations. 



LITERATURE CITED 



AMERICAN PUBLIC HEALTH ASSOCIATION 

 AND THE AMERICAN WATER WORK ASSO- 

 CIATION 



1946. Standard methods for the examina- 

 tion of water and sewage. New 

 York: American Public Health 

 Association, 286 pp. 



DEUTSCHE SEEWARTE 



1942. Weltkarte zur Ubersicht der Meeres- 

 strb'mungen. Chart No. 2802. 



FUGLISTER, F. C. 



1951. Multiple currents in the Gulf Stream 

 system. Tellus 3(4):230-233. 



» 



HARVEY, H. W. 



1928. Biological chemistry and physics of 

 sea water. London: Cambridge 



Univ. Press, 189 pp. 



JACOBS, WOODROW C. 



1951. The energy exchange between sea and 

 atmosphere and some of its conse- 

 quences. Bull, of the Scripps Insti- 

 tution of Oceanography 6(2):27-122. 



MACKINTOSH, N. A. 



1946. The Antarctic convergence and the 

 distribution of surface temperatures 

 in Antarctic waters. Discovery Re- 

 ports 23:177-212. 



McGARY, JAMES W. 



1955. Mid-Pacific oceanography, Part VI, 

 Hawaiian offshore waters, December 

 1949-November 1951. U. S. Fish 

 and Wildlife Service, Spec. Sci. 

 Rept. : Fish. 152, 138 pp. 



— Shomura, Richard S. and Tamio Otsu. 

 Central North Pacific albacore surveys, Janu- 

 ary 1954 to February 1955. 



N AMI AS, J. 



1953. Thirty-day forecasting: a review of a 

 ten-year experiment. Meteorological 

 Monographs 2(6): 1-83. 



15 



