432
co
o 3.0
a.
2' 2.5
~
(II
()
'5 2.0
0~
f;? 1.5
'"
~3.0
a.
0
cJ2.
2' 2.5
~
(II
()
·s 2.0
0~
u 1.5
'" 00
Mulitzaetal.
Plankton Tow GeoS 1402-2
A
2.0
3.0
013C (N. dutertrei, %0 PDB)
B
0
o 0
0
00
0.5
1.0
1.5
;- 2.0
:::J
0(l)
E 1.5
o
.):::
c
o 1.0
~
.s;
(l)
~0.5
u
'"
~ 0.0
;- 2.5
:::J
0(l)
E
,g 2.0
c
o
~
.~ 1.5
~
u
'"
~ 1.0
013C (P. obliquiloculata, %0 PDB)
co
~ 3.5
o
cJ2.
2'
'0 3.0
ro ()
·~2.5
~
U
c
..... ......
;- 2.0
:::J
0(l)
E 1.5
,g
c
o 1.0
~
.~
~0.5
u
'"
~ 2.0 ~--.-----r----'~--~ 0.0
1.0
1.5
2.0
o13C (G. sacculifer, %0 PDB)
o
o
o 0 0
,
0
20
25
Calcification Temperature eC)
E
o
00
20
25
Calcification Temperature eC)
F
0
0
0
0
0
00
0
0
20
25
Calcification Temperature (OC)
Fig. 4. (a-c) (ii3C of N dutertrei, P. obliquiloculata and G. sacculifer versus o i3 C rc02 in the depth of calcification.
Depth of calcification was calculated from 0 1 '0. 0i3C"C02 was calculated from apparent oxygen utilization (AOU).
(d-t) Deviation offoraminiferal Oi3C from equilibrium versus calcification temperature. Temperature, salinity and
oxygen concentration were measured at the trap site with a CTD-Probe.