42 
BULLETIN OF THE BUREAU OF FISHERIES 
We expected, then, that many of the cod which were tagged on Nantucket 
Shoals and elsewhere along the New England coast would remain localized for some 
time, although we could not be sure that fish would remain from one year to the 
next or for longer periods. However, as the following records show, many of the 
cod tagged off southern Massachusetts were recaptured a long time later in the same 
place where they had been released. 
LOCALIZATION AS SHOWN BY TAGGED FISH 
WOODS HOLE REGION 
In this locality, as already stated, cod are present throughout the winter, but 
most of them go eastward to spend the summer. Cod tagged by Smith (1902) re- 
mained near by from early winter to late spring (Table 2, p. 7); and of the cod tagged 
in January on the present investigation 2 were recaptured near by in August, Table 
15, and several of the fish taken in the fall probably remained throughout the year 
almost on the very spot where they were tagged. In this category may be placed 
the 2 cod tagged off No Mans Land and recaptured there one and two and a half 
years later, respectively (p. 25). It is possible that these fish could have summered on 
Nantucket Shoals, but if they did the chance of their being recaught in the same place 
where they were tagged appears to be remote. 
NANTUCKET SHOALS 
Our most extensive data on the localization of the cod come from Nantucket 
Shoals, where so many fish have been marked and recaptui'ed, so that from these 
ample proof has been obtained that some cod remain in this region throughout the 
summer, or from one year to the next. A record of all those cod which were both 
tagged and recaptured on Nantucket Shoals is given in the table which follows. 
Table 23. — Cod tagged on Nantucket Shoals and subsequently recaptured on Nantucket Shoals 1 
i The months of December, January, February, and March are not included in these tables because very little fishing is done on 
Nantucket Shoals during the winter, so that at that season there is little opportunity for recapturing tagged fish. 
1 1 cod was recaptured in December, 1923. 
J 1 cod was recaptured in January, 1925. 
