KONGL. SV. VET. AKADEMIENS HANDLINGAR. KAND. 34. N:<> 3. 11 



H, I, J should be the same as appears in May in the Skagerak, the currenl vvould require 

 about seven months. 



At the station K, that corresponds to A (May 31 th ), the plankton is qow typical 

 trip os-plankton, but in May there prevailed chceto-plankton, (li.it contained mainly Phceo- 

 cystis Pouchetii. 



The great changes, which occurred in the northern Atlantic since the spring, can 

 be summarized in the following mariner: 



1. In the western regions the deeper strata, containing Calanus finmarchicus, bad 

 corae to the surface. 



2. In the eastern regions the water, containing in the spring arctic species, mi- 

 grated towards Spitzbergen and became replaced by water from the temperate eastern 

 Atlantic. 



