54 
BULLETIN OF THE BUREAU OF FISHERIES 
by additional immigrants. Due to growth, the 15 to 17 inch October, 1924, cod were 
18 to 20 inches long in May, 1925, and these sizes formed 29.7 per cent of the total 
catch of cod. (Fig. 17, No. 1.) The tagging locality in May, 1925, was the same as 
that where all the fish given in Figure 16, No. 3 (October, 1924), were taken, namely, 
Round Shoal buoy to Rose and Crown buoy. The 23 to 26 inch cod, B, which com- 
prised a major group in October, 1924, were present on the same tagging grounds 
and in about the same proportion. They had, of course, grown in length and the 
23-inch fish were fading out of the picture while the 24 to 27 inch lengths dominated. 
The second cruise to Nantucket Shoals in 1925 was made in June and the size 
distribution is given in Figure 17, No. 2. 
Figure 17. — Length-frequency distribution of cod caught between Bound Shoal buoy and Rose and Crown buoy. 
No. 1= 852 fish taken May 5-8, 1925. No. 2=154 fish taken June 7-12, 1925. No. 3=253 fish taken August 21-25, 
1925. No. 4=1,330 fish taken October 1-6 and October 24-30, 1925 
Most of the fishing in June was 6 to 12 miles east-southeast of Round Shoal 
buoy on the grounds where the last of the A cod were found in July, 1924. Enough 
cod were caught in the immediate vicinity of the buoy, however, to show that in 
June the same 18 to 20 inch school, C, had remained from the previous month (fig. 
17, No. 2) and apparently no migration occured in the meantime. 
The 24 to 27 inch fish, B, so plentiful in May, 1925, were represented in June 
chiefly by the 26-inch size. The number of cod caught in June, however, was too 
small to draw conclusions other than that the stock of cod around Round Shoal buoy 
was essentially the same as in May. 
