0 5
1.5I I
-_ A -_ -___- . . -1.4 ": I
I
I
I
0.7 -
o
h I
I
I
1955
1956
Fro. 14. The variation of some physical and chemical factors and also the plankton
a t a station (09O21.5" 81'43.5'W) near Igloolik Island in the Canadian Arctic.
The chemical data are for two different depths: solid line, Om and broken lino, 101~.
The phytoplankton values are the averages of counts a t two sampling depth
(0, 10 m) and the zooplankton values represent the numbers of animals in 50 m
hauls with different nets (---, total (no. 0); - , copepods (no. 0);
stippled area, copepod nauplii (no. 0) ; hatched area, oirripede nauplii (no. 0 ) ; solid
area, polychaete larvae (no. 0)). (After Grainger, 1959 and Burse. 1961.)