— 130 — 



time of most of the gadoids are to be found in the north and north-west, 

 the lowest in the east and south-east. 



If we compare the temperature in spring in the North Sea and in other parts of the 

 regions investigated, we may say that the temperature in the North Sea nowhere rises so 

 high as on the Atlantic coasts of Scotland and Ireland, but that in the northern and 



Fig. 10. Distribution of salinities and temperatures along the bottom during 

 the months of February and March 1906. 35 = 35 »loo. 



north-western parts we find similar temperatures, in the eastern and south-eastern parts 

 lower temperatures than in the waters at South Iceland and on the Fseroese coasts. 



We come now to the consideration of the gadoids which spawn in the North Sea. It 

 may first of all be mentioned that several of the species occurring in deep water are at 

 once excluded from the list on account of the fact that they require deeper water for 



I 



