Table 5	
Average oxygen and carbon isotopic composition for the four planktonic Foraminiferal species.	


Tow	
site	Species and 
Number of 	
analysis	Mean ?18O
and STD	
(‰ PDB)	Mean ?13C
and STD	
(‰ PDB)	Depth Rangea 
(m)	Density 
Rangeb	
(kg/m3)	Mean 							
T								
and STDc								
(°C)	Mean 							
Cp								
and STDd								
(m-1)	Mean ??13Ce-s							
and STDe								
(‰ PDB)								
121 km	Left-coiling							
N. pachyderma   (2)	-0.33±0.43	-0.04±0.03	May-35	23.3-24.3	14.5±0.6	0.285±0.047	2.39±0.24	
572 km	G. calida             (3)	-0.16±0.47	 0.47±0.48	35-55	24.3-24.9	12.7±1.0	0.093±0.005	1.85±0.56
121 km	G. scitula            (4)	 1.81±0.21	-0.10±0.15					
289 km	G. scitula            (1)	2	0.08					
572 km	G. scitula            (5)	 1.60±0.21	-0.11±0.24					
Average	G. scitula          (10)	 1.72±0.23	-0.08±0.19	150-290	26.2-26.7	7.2±0.2	0.039±0.011	1.10±0.48
572 km	G. hexagona       (5)	 2.14±0.08	-0.11±0.13	330-390	26.7-26.8	6.2±0.1	0.027±0.001	1.00±0.20

"a,b Calcification depth and density ranges were calculated by comparison of the Foraminiferal shell oxygen isotope values with the ?18O of calcite in equlibrium with concurrent CTD measured T and S."								
c The CTD measured temperature over the inferred calcification depth range. 								
d The transmissometer measured particle attenuation coefficient over the inferred calcification depth range.								
"e The apparent carbon disequilibrium is defined as: ??13Ce-s = ?13Ce- ?13Cs, where ?13Cs is the average shell carbon isotope composition, and ?13Ce is the average equilibrium calcite carbon isotopic composition."