CAyADIAy FISHERIES EXPEDITION, ldl.',-13 



375 



little above 4° C.) down to 20m, but from there a sudden fall to temperatures below 

 zero Between a depth of ^0-75m. and an increase farther downwards to 2-4°C. at llOra. 



Section XXI, Stations 93-98. (Fig. 9). 



The section runs from station 93, identical with station V 4 of the spring cniise 

 to station 98 off Cape Breton, and crosses Canso bank. 



Salinity.'^. — Intermediate water is found from the surface down to 50m. in the 

 southern part of the section ; north of Canso bank it goes down to about 75m. In the 



om 



Sect. XXI 



95 9^ 



100 



200 



Fig. 9 — Salinity and temperature along the coast from off Halifax to off Cape Breton. 



south the 31-water predominates, in the north the 30-water. Off Halifax the bank 

 water is only present as a thin layer in a depth of about 50-60m., over the banks it 

 occupies the strata from 50m. down to the bottom and north of the banks from about 

 75m. to 125m. The deeper parts between the banks are filled with slope water, mostly 

 33-water, but south of the banks we find 34-water near the bottom (150-185ni.). The 

 lower salinity of the water in the northern part of the section is obviously due to the 

 outflow through the Gut of Canso, from which a deep submarine channel leads towards- 

 station 97. 



Temperature. — The temperatures confirm the facts found by the salinity, with the 

 exception of those found from the surface down to 50m. at station 94 (see the footnote, 

 below). The 31-water in the south has a temperature higher than 8° C. and the 30- 

 water in the north mostly has a temperature between 5° and 8° C. From about 50m. 

 in the south, and 75m. in the north, the temperature decreases rapidly, in the south 

 towards a minimum with temperatures about 4° C. at 75-lOOm. with higher temper- 

 atures, up to 7-4° C. in a depth of 150m., while over the banks and over the northern 

 channel it is continuously decreasing towards the bottom. Xear the bottom of the 

 banks we find temperatures of about 1-9° C, and near the bottom in the channel north 

 of the same we find a temperature of 0-8° C. 



1 N.B. — As regards the salinities from the upper 50m. at station 94 (table le), I find that 

 some errors in the labelling of the water samples must have taken place. The salinities found 

 in the table fall quite inversely to what might be expected, but comparing the salinities with 

 the corresponding temperatures the latter display a very uniform character corresponding to 

 the temperature at the same depths at the neighbouring stations 92, 93, and 95. The isohalines 

 In section XXI are therefore drawn according to a revision of the salinities made by the author, 

 while the observed (?) salinities might be found in the table. 



