CANADIAN FlSUEIilKti KXrEDlTION, 191/rlo 



469 



The distribution of the large individuals in July-August shows that they have 

 retreated from the shallower banks, also from the lower part of the gulf and curiously 

 enough also from the deep northern part of the gulf. Between Anticosti island and 

 the north shore they were entirely absent in June but present in August. The gcnoral 

 circulation in the gulf has doubtless been responsible for this, carrying them around 

 and then out through Cabot strait. 



Fig. 10.— Distribution of ,S'. clemns (those over 20""" in length), .July-August 1915. Zones showing 

 frequencies of 1 to 8, 9 to 90 and 90 and over pt-r station. 



The retreat inshore of the species during the summer from the open Atlantic is 

 shown by its absence beyond the continental shelf during the late cruise, except at the 

 mouth of the Laurentian channel, while during the early cruise it occurred at the 

 outermost stations (except Acadia station 17), though in small numbers. In some 

 place.=s on the late cruise it was pushed well back from the edge of the shelf, particularly 

 in the southern part. 



During the June cruise the western side of the lower part of the gulf contnircd 

 only small individuals, 6mm. or loss in length. This is shown by the horizontal lines 

 6551— 34J 



