Alaskan Peninsula, may also be a source of 

 larval recruitment into southeastern Bering 

 S€a. 



SUMMARY 



The results of current observations in 

 southeastern Bering Sea have been determined 

 by evaluating the characteristics of the 

 currents at two offshore and two inshore 

 stations. The offshore stations revealed 

 dextrally rotating semi-diurnal tidal cur- 

 rents. The maximum currents of between 1.0 

 and 1.5 knots were flowing parallel to the 

 coast. The minimum current was 0.1 knot 

 flowing approximately perpendicular to the 

 coasts. 



The inshore stations showed tidal cur- 

 rents which were jilso rotary but greatly 

 compressed from the northwest and southeast 

 so that the major water movement assumed an 

 oval pattern. Here again the currents were 

 semi-diurnal but they varied in the direc- 

 tion of rotation. Maximum observed currents 

 were oriented parallel to the coast with 

 velocities to 1.7 knots at station C and to 

 0.8 knot at D. Minimum observed currents 

 were approximately 0.1 knot. 



The maximum observed tidal current 

 velocities at stations A, B, and D tended 

 to decrease with depth but to increase with 

 depth at station C. The minimal tidal cur- 

 rents tended to remain the same or increase 

 in velocity from the surface to the bottom 

 on all stations. 



The average current flowed toward 

 Bristol Bay at the inshore stations and sea- 

 ward at the offshore stations, thus setting 

 up a counterclockwise circulation through 

 southeastern Bering Sea. At all stations, 

 the velocities of the average current tended 

 to decrease with increased depth. Further 

 investigation of the dynamics of south- 

 eastern Bering Sea is required in order to 

 determine exactly the forces which set up 

 and maintain the average currents of the 

 Eire a. The permanence of these average cur- 

 rents is of interest because of their impor- 

 tance in the distribution of the king crab 

 larvae during the spring and summer months. 



LITERATURE CITED 



DOODSON, A. T. , A.NT) H. D. WARBURG. 



1941 Admiralty Manual of tides. His 

 Majesty's Stationary Office, 

 London. (Reprinted 1946) 270 p. 



EKMAN, V. WALFRLD. 



1932 An improved type cf current meter. 

 Journal du €onseil, 7 (1):1-10. 



INTERNATIONAL NORTH PACIFIC FISHERIES 

 COMMISSION. 

 1957 Annual report for the year 1956. 

 International North Pacific Fish- 

 eries Commission, Vancouver, 

 CcUiada. 88 p. 



MARUKAWA, H. 



1933 Biological and fishery research 

 on Japanese king crab Parali- 

 thodes camtschatica (Tilesius). 

 Journal of the Imperial Fisheries 

 Experimental Station Tokyo, No. 4 

 (paper 37). 152 p. 



ROSSBY, C. G. , AND R. B. MONTGOMERY. 



1935 The layer cf frictional influence 

 in wind and ocean currents. a 

 Papers in Physical Oceanography, 



3 (3). 101 p. 



THOMPSON, WILLIAM F. , AND RICHARD VAN CLEVE. 



1936 Life history of the Pacific hali- 

 but. (2) Distribution and early 

 life history. Rept. Inter. Fish. 

 Cbmm. , No. 9. 184 p. 



UNITED STATES COAST AND GEODETIC SURVEY. 

 1950 Manual of current observations. 

 U. S. Coast and Geodetic Survey, 

 Spec. Publ. No. 215, Revised 

 (1950) edition. 87 p. 



UNITED STATES COAST GUARD. 



1936. Report of oceanographic cruise 



United States Coast Guard Cutter 

 CHELAN, Bering Sea and Bering 

 Strait 1934 and other related 

 data. Mimeographed Report. 

 72 p. 



11 



IHT.DUP. ,D.C.59- 558Jt 



