this work suggest that the fishery should be ex- 

 tended to the plume limits in most years and 

 farther in years of high plume intensity. Con- 

 firmation of the hypothesis presented here will be 

 necessary, as well as useful, by accumulation of 

 more paired observations on plume and albacore 

 distribution. Should the hypothesis be supported, 

 areal differences in catch rate of albacore can be 

 estimated from preseason geostrophic flow, \\-ind 

 field, and Columbia River discharge, because these 

 factors largely determine the physical character- 

 istics of the en^•ironment in this region. 



ACKNOWLEDGM ENTS 



The following persons helped support the work 

 reported here: Da}'ton L. Alverson, Lorraine C. 

 Downing, Glenn A. Fhttner, James H. Johnson, 

 David K. Justice, Jan B. Lawson, James M. 

 Meehan, and Richard R. Whitney. Warren S. 

 Wooster, Allen J. Dodimead, Ronald J. Lynn, 

 Cuthbert M. Love, and J. F. T. Saur re\-iewed 

 the manuscript. 



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OCEANOGRAPHIC CONDITIONS IN NORTHEAST PACIFIC OCEAN 



525 



