Nitrate t Nitrite-N (pq-otorns/L)
0
; ; 200
e,
E 400
f
600
800
-
el
I
8 -
6 -
4 -
2 -
Phosphate-P (pq-atomsI2)
0
'ji 200
r
E 400
f
% 600
n
800
L
4l
I
Chlorophyll o (mq/m3)
0
- f 40
f 60
n
100
p 20
e 80
1957 1
1958
I 1959
-
-
-
-
8
O ' N ' D i J I F ' M ' A ' M ' J ' J ' A ' S ' 0 ' N ' D / J ' F ' M ' A
1957
1958
1959
WO. 11. The seasonal variation of nutrients, chlorophyll a and zooplankton at station
s (32"N 65"W) in tho north-western Sargasso See. The zooplankton data were
obtained by obliquo tows (with a 2 net) betweon 600 m and tho surface, and
represent the dry weight of animal matter beneath 1 sq mjtre of surface. (After
Menzel end Ryther, 1960, 1961.)
AXE.-0
7
0
; ; 200
e,
E 400
f
600
800
-
el
I
8 -
6 -
4 -
2 -
Phosphate-P (pq-atomsI2)
0
'ji 200
r
E 400
f
% 600
n
800
L
4l
I
Chlorophyll o (mq/m3)
0
- f 40
f 60
n
100
p 20
e 80
1957 1
1958
I 1959
-
-
-
-
8
O ' N ' D i J I F ' M ' A ' M ' J ' J ' A ' S ' 0 ' N ' D / J ' F ' M ' A
1957
1958
1959
WO. 11. The seasonal variation of nutrients, chlorophyll a and zooplankton at station
s (32"N 65"W) in tho north-western Sargasso See. The zooplankton data were
obtained by obliquo tows (with a 2 net) betweon 600 m and tho surface, and
represent the dry weight of animal matter beneath 1 sq mjtre of surface. (After
Menzel end Ryther, 1960, 1961.)
AXE.-0
7