12 



For the Shetland area (X) we have very Httle information for the years 1901 to 1903, 

 but from 1904 to 1906 v^e have evidence of a high maximum for Cod recurring regularly 

 about June (fig. 12). In 1906 there was a secondary maximum in January. The curve 

 for Codling (fig. 13) is in this area very similar to that for Cod, the maximum being 



40 



% 





'5 



Fig. 13. Codling. Area X. 



also in summer-time, about a month later than for the large fish. South-east of Shet- 

 land, over Bressay Shoal in area XV, we have again a regular curve, though it is marred 

 by several blanks in our information. There is clear evidence of an annual maximum 



in summer, from July to August or 

 1904 1905 1906 September, with a minimum about 



March. The time of maximum is a 

 little later than in the Shetland areas. 

 Codling here also reach their maximum 

 about the same time. 



Eastward of Shetland, in area XI, 

 we have evidence (in spite of some 

 breaks in the series) of an annual 

 maximum in Cod about August, and 

 fairly good evidence also of a maximum 

 of Codling about January. 



In the Fair Isle region, area XIV, 

 we have again a well-marked maximum 

 in Cod about July (fig. 14). Codling show here a similar maximum about July or August, 

 and also a fairly well-marked secondary maximum about January (fig. 15). 



In the adjacent area to the westward, north of Orkney, (area XIII) there is a very 

 different period of maximum for Cod, namely about the month of January (fig. 16) and 



20 



^ 



5: 



t 



P: 



Fig. 14. Cod. Area XIV. 



