, 35.0 



UJ 



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 <f> 



33.0 - 



35.0 



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UJ 

 Q. 



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I 57° 30" W 



Figure 4. --Temperature-salinity relations for the eastern and western meridional 

 sections of Hugh M. Smith cruise 30. The diagrams were grouped into three 

 water types according to the distribution of chaetognaths. The temperature- 

 salinity relation (indicated with dashed lines) for the Western North Pacific 

 Central Water mass (WNPC) and the Pacific Subarctic Water mass (PSW), as 

 redrawn from Sverdrup et al. (1942) were superimposed on the diagrams for 

 Hugh M. Smith cruise 30 to identify the water types. 



10 



