CANADIAy FISHERIES EXPEDITIOX, 101',-15 357 



In working certain main features in the distribution of wati^rs of different salini- 

 ties in tlie area investigated, I have found it convenient to introduce a special termi- 

 nology : — 



Per cent. 



1. Coastal water Salinity, below 30 



„ ^ , ,. ^ ^ { 30-water " 30-31 



2. Intermediate water... . . ., .. 31-39 



( inner " 32-32,5 



\ outer " 32,5-33 



f 33-water " 33-34 



■ ■ \ 34 " " 34-35 



Atlantic water " above 35 



3. Bank water 



4. Slope water. 



These varieties, and the limits between them, are of course only approximate, 

 and the terms are used according to the prevailing conditions. The subdivision is 

 analogous with that used by Pettersson and Ekman^ in the treatment of the Skager 

 Rack and Cattegat waters. 



Tu the sections the isohalines are represented by continuous lines, those denoting 

 the main division somewhat thicker than the others. In some cases, especially in 

 coastal water, additional isohalines, viz., 29 ^/oo, 34-5 ^/oo, and 35-.5 ^oo are drawn in. 

 The isotherms are represented by dotted lines. Each observation is marked with a 

 little circle: the figures are not inserted in the sections, but will be found in the 

 hydrographical table. 



Spring Cruises. 

 GULF OF ST. LAWREXCF (TABLE la) 



1. C.G.S. "Princess" OLkx 10 to May 13). 



During the preliminary cruise in the gulf of St. Lawrence in the Princess, two 

 stations were taken: one on the Bradelle bank and the other on the southwestern part 

 of the Magdalen Islands bank. 



Stations 1 and 2. 



Salinity. — In the upper strata, down to below 10m., coastal water is found at 

 station 1, thence to the bottom (69m.) intermediate water with a maximum salinit.v 

 of 31 -31 '^'00 at 65m. At station 2 the coastal water extends down to below 20m., but 

 at 40m. (bottom 45m.) the salinity is nearly the same as at station 1, viz., 31-16*'/oo. 



Temperatnre.—The melting of the floating ice has cooled down the surface water 

 to 0° C. at station 1, and 0-35° C. at station 2. At 10m. the temperature is somewhat 

 higher at both stations, but from 20m. down to the bottom the temperature is below 

 zero, being at both stations -^1-2° C. at 40m., and -^ 1-4° C. near the bottom at 

 station 1. 



2. C.G-S. "Princess" (June 9 to Jine 15). 



The first two stations on this cruise were taken in the shallow water of the 

 Xorthumberland strait, and are not included in any of the sections. 



Stations 3 and Jf. 



Salinity. — Coastal water of low salinity, about 2S Vfo, is found from the surface 

 down to 20m. at both stations, at station 3 ranging from 27-83 Voo to 28-60 "/on. and 

 at station 4 from 27-65 to 28-12 Voo. The eastern station thus shows the highest 

 salinity and the greatest difference between the surface and bottom layers. 



1 Pettersson ock Ekman : Grunddragen af Skageracks ock Kattegats Hydrografi. Kffl. S. 



Vetenskaps Akads. Handlingar, v. 24 no. 11 



