KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 57. NIO 7. 



33 



Also at this station, the corresponding tables 9 (p. 12) and 47 present some incon- 

 gruities, among which may be mentioned the diatoms being a little more frequent in 

 1913, as far as concerns the uppermost layers of water. The presence of Leptocylindrus 

 is here remarkable for the season. Further a relatively rich development of small Peri- 

 dinia in 1913, by the almost entire absence of Ceratia, that, on the contrary, were prepon- 

 derant in 1912. Lastly, the high frequency of infusorians, especially LaboecR, through at 

 least the 20 uppermost m. Both Peridinia and Protozoa present the largest numbers 

 at 20 m with 3,060 and 5,200 ind. per 1 resp., in a water of only 6° . 



Table 48. S. Skag. 9. 58 3 21' N., 8 C 56' E. 3. VIII. 1913. 



Ad 



4,0 



o 

 o 



>> 



O. 



«a 





£ £ 



C 



a 



OJ 



i, p 





1-1 





Q 



cö cö 



^5 9. 



o ej 

 O "O 



JS C3 = 



m as ^ 



0~ es 





0! 









03 



00 00 



C oc 





E r2 aa 



"O T2 <h 



S 



O <* X> 



o « -° 



13 



Diat 



to 



num 



= o S 



C "" 3 



o 



C 



s 



>> C 



O 





O 



03 



o 



Protozoa 



total 

 numbers 



1,540 



1,900 



70 



190 



80 



10 



20 



40 



60 



100 



220 



16,91 



11,05 



8,18 

 7,24 

 6,69 

 6,42 



28,91 



21,00 



33,91 



25,95 



34,85 



27,14 



34,90 



27,35 



34,94 



27,44 



34,94 



27,52 



90 

 440 

 330 



710 



70 



280 



2(> 



Ii) 

 l(i 



570 



80 



80 



20 



60 



80 



150 



30 





550 



30 





360 



70 



40 



140 



(+20) 



40 



(+20) 



790 



380 



( + 20) 



180 



(+20) 



70 



30 



150 



20 



20 



20 



1,480 

 1,880 



Table 49. Organisms per l in August Ith — 3d 1913. 





S. Skag. 6 



s. 



Skag. 8 



s. 



Skag. 9. 



Depth 



a 



03 



(B 

 '03 

 B 



■3 



< 



Organisms 



total 



numbers 



Plants 



Vi 



"3 



£ 

 c 

 < 



Organisms 



total 



numbers 



Plants 



05 



"3 

 _E 

 'a 



< 



Organisms 



total 



numbers 







2,180' 



1,480 



3,660 



2,360 2 



2,990 



5,350 



970 



1,760 



2,730 



20 



640 



960 



1,600 



3,120 



5,580 



8,700 



220 



1,980 



2,200 



40 



60 



320 



380 



1,940 ? 



1,300 



3,240 



230 



140 



370 



60 



900 



230 



1,130 



550 2 



360 



910 



580 



320 



900 



100 



990 9 



150 



1,140 



120 



160 



280 



530 



480 



1,010 



200 









80 



30 



110 



810 4 



60 



870 



400 









20 



— 



20 









600 







40 



210 



250 









675 









320 



30 



350 









1 Besides frequent, not counted tureads of Oscillatoria sp. 



2 Besides colonies of Phaeocystis Pouchetii, + at 0, r at 40 and 60 ra. 



3 The sample taken at 103 m. 



4 The sample taken at 220 m. 



K. Sv. Vet. Akad. Handl. Band 57. N:o 7. 



