36 



ASTRID CLEVE-EULER, QUANTITATIVE PLANKTON RESEARCHES IN THE SKAGER RAK. 



Table 52. S. Skag. 0. 57° 41' N., 11° 24' E. 25. II. 1914. 



43 



a, 

 Q 



gd 



0. 



S £ 



<D 3 



En -^ 



O 



>> 

 C 



"3 

 w 



>> 



43 

 'ro 

 C 

 CD 



Q 



Thalassiosira 

 Norden - 

 skiöldii 



t* 



'ro o3 



.2 "^ 



ro 'C 



ro < 

 JS 5 

 "3 ÖB 



J3 

 E- 



Thalassiosira 

 fallax 



c3 co 



'C ^ 



© cö 



il 



Sceletonema 

 costatum 



Paralia 

 sulcata 



cä 

 03 o 



a s 



oj 



c :a 



■5 G 

 2 c 



OJ bD 



o 



ILeptocylin- 

 drus danicus 

 1 



03 



m G 



"o c 



ro ro 

 ° a 



.3 <° 



ro 



ga 



a 3 



o 43 



53 



© 43 

 o3 G 

 — ? 



Biddulphia 

 aurita 



Thalassio- 



thrix nitz- 



schioides 



Diatoms 



total 

 numbers 







2,26 



23,48 



18,79 



11,700 



1,800 



2,300 



3,000 



26,000 







100 





250 



300 



6,000 



11,100 



70,150 



10 



2,29 



23,51 



18,82 



20,700 



1,300 



2,900 



4,200 



46,100 



800 



100 



200 



700 



200 



2,000 



8,500 



15,600 



113,700 



20 



2,56 



24,61 



19,67 



26,100 



500 



3,100 



6,800 



34,700 





100 



600 



300 



100 



1,500 



9,600 



3,200 



91,700 



30 



3,52 



30,82 



24,54 



11,600 



8,000 



1,200 



4,700 



144,100 



900 





100 



1,000 



300 





8,400 



47,500 



247,700 



40 



3,59 



31,80 



25,31 



12,000 



400 

 + 100 



1,400 



3,800 



129,000 









1,500 



200 



400 



15,000 41,500 



216,900 



50 



4,18 



32,83 



26,07 



3,700 



400 



200 



700 



34,200 



1,500 







300 





200 



5,500 13,100 



63,700 



CO 



5,80 



34,27 



27,03 



20 



80 



+ 20 







820 



2,140 













160 60 



4,260 



80 



0,16 



34,69 



27,29 



60 



40 



40 





320 



2,320 















120 



4,800 



high numbers of Sceletonema. Then, there is a rapid decrease 

 tween 40 and 50 m, the Sira-plankton scarcely penetrating 

 layers, where Paralia is the dominating form. 



Table 53. S. 8kag. 0. 57° 41' N., 11 ° 24' E. 25. II. 1914 



of the diatom -numbers be- 

 into the undermost, salter 



-G 



O. 

 © 



Q 



Tempera- 

 ture ° C. 



i 



C 



>, 



'3 

 "3 



o 



43* 



'5 



G 

 <D 



Q 



5 

 'c 



'O 



o 



G 



a 

 >. 



o 



.2 



c8 

 es 



O 



Peridiniales 



total 



numbers 



a 



3 



'c 



O 

 TO 

 9 



g 



b 



<D 

 O 

 -O 

 cS 



Protozoa 



total 

 numbers 



Bion multi- 

 spinosum 







2,26 



23,48 



18,79 



1,700 





1,700 



3,200 



2,350 



5,950 



200 



10 



2,29 



23,51 



18,82 



1,200 





2,800 



600 



3,300 : 4,700 





20 



2,56 



24,61 



19,67 



200 





500 





100 



400 



700 



30 



3,52 



30,82 



24,54 



500 



200 



3,300 



200 



200 



1,300 



800 



40 



3,59 



31,80 



25,31 





100 



1,200 







5,000 



50 



4,18 



32,83 



26,07 





100 



1,000 





100 



7,600 



60 



5,80 



34,27 



27,03 



80 



20 



180 





40 



7G0 



80 



6,16 



34,69 



27,29 



180 



20 



320 







60 



1,100 



Peridiniales and Protozoa as at S. Extra II, only spreading deeper. (In the 20-m- 

 column, the numbers found seem to be too low. ) 



Table 54. S. Skag. 5. 57° 42' K, 9° 51' E. 25. II. 1914. 













cö 



03 







CÖ 







. ■» 



cö 



* 







Biddulphia 

 sinensis 







.G 



4-» 



<D 



Q 



gö 



Co 



Cl 



a £ 



o 

 o ~ 



43 



C 



O 



>> 



ro 

 G 

 D 



Q 



Thalassiosir 

 Norden- 

 skiöldii 



u 

 'ro 



.2 * 



'ro _£3 



ro ^i 

 03 o3 



.3 to 



T3 Qj 

 G t- 



« 2 



Coscino- 



discus con 



cinnus 



Sceletonem 

 costatum 



<ä o3 



■JZ 43 



CÖ cö 



i~ 



P-i ro 



cö 



GÖ O 



C o 



a** 



Leptoeylin 

 drus danicu 



G o3 



■3 5 



01 © 



O J2 



G 



a 



D0 



fl 

 CJ 

 t» 



g fl 



a, 3 



O 43 



° M. 



43 O 

 © 43 

 03 G 



JZ O 



Ig 



"5 'C 



n 



Thalassio- 



thrix nitz- 



schioides 



Diatoms 



total 

 numbers 







6,00 



34,72 



27,36 



600 



200 



110 



140 



700 



5,270 



800 



30 









400 



100 



1,700 



13,230 



10 



6,03 



34,7« 



27,39 



140 



60 



200 





3,320 



2,380 



20 



40 







60 



1,400 





570 



10,120 



20 



6,35 



34,85 



27,41 



240 





140 





1,240 



1,500 



40 



20 









160 





280 



5,370 



30 



6,55 



34,92 



27,45 



100 





180 



20 



840 



4,360 













20 



20 



320 



7,150 



40 



6,62 



34,92 



27,44 



40 



20 







500 



5,120 













20 



40 



200 



7,360 



64 



0,66 



34,9 



27,4 



60 



20 



20 





200 



6,540 













40 



40 



40 



7,740 



