— 28 - 



as we have points towards an autumn maximum. In the Skagerrack Professor Henking 

 tells us that the maximum is in summer (May — ^July), and in the southern North Sea 

 from July to September. 



1902 



1903 



1304 



1905 



1906 



150 



100 



.50 



\- 



\^: 



t 



-.i 



I 



I 



'^t 



2 



ki- 



'S 



m 



^^: 



^ 



S: 



Fig. 55. Large Haddock. Area X. 



Summing up, we find a winter maximum in two regions, firstly off the north-west 

 of Scotland, and secondly over an extensive area in the North Sea, eastward from the 



Moray Firth. A summer maximum 



1904 



1905 



1906 



600 



^00 



4D0 



is found at Shetland, in the Skager- 

 rack and in the southern North Sea. 

 Southward of Shetland, and off the 

 East Coast of Scotland, the best 

 period is in late summer aiid in 

 autumn. The winter maximum of 

 the central areas extends, more or 

 less, into spring, and a spring maximum 

 is also marked both to the eastward 

 (e. g. XXVI) and to the northward 

 (XI, etc.). The maximum on the 

 Faeroe trawling grounds is also in 

 spring. 



The Chart (PI. I) on which we 

 attempt to represent the seasonal 

 distribution of the Large Haddock is 

 less satisfactory than that which 

 illustrates the Extra Large, chiefly 

 owing to the circumstance, already 

 mentioned, that the season of abundance of the Large Haddock in each area is com- 

 paratively protracted, and owing also to our imperfect knov/ledge of the conditions which 



300 



200 



Fig. 56. Larger Haddock. Area C. 



