5ff* 



55- 



64' 



20' "" 



Figure 3. Distribution of summer-herring larvae longer than 10 mm., in Iceland region, 

 caught by A. (sic.) Taning during his investigations. Figures on map indicate 

 number of larvae caught at the stations . 



Comparing the distribution of larvae of early and later stages, one notices that the bigger 

 larvae are found over a considerably greater area. The largest number was found to the west of 

 the presumed spawning-grounds. Large summer herring larvae were found by Taning in 1934 and 

 1936 off Isa Fjord. 



One may presume that a large part of the larvae remains in the bays of the west coast (Faxa, 

 Breida and Isa Fjord), which are not accessible to boats of large draught. 



The large larvae found at considerable depths to the south-east of Iceland are of undoubted 

 interest. One may presume that these larvae are carried from the spawning grounds of the Iceland 

 region (south-east coast) or are carried into the Iceland region from the spawning grounds of the 

 Faroes. The question of the westward drift of larvae with the waters of the Irminger current has 

 not been clarified . 



Data about year-old herrings are extremely fragmentary. In February 1936, Fridriksson 

 (5), searching for reproduction centers of the spring- spawning herring in the regions of the south 

 and south-west coasts, found spring herring at a few stations. The dimensions which he gives ob- 

 viously testify to the presence of the young of summer- and spring- spawning herring (Figure 4). 

 The length of the young of the summer herring is 4-5 cm. (M = 4.78) and the length of the year-old 

 spring herring is 8-10 cm. (M = 9.02). The proportion of the young of both types in these catches 

 was about the same. 



172 



