Table 2 Average δ18Optero and δ13Cptero (in ‰) based on measurements of individual pteropod shells (N = number of shells measured; SD = Standard Deviation, n.a. = not available, as n=2).

From: Pteropods are excellent recorders of surface temperature and carbonate ion concentration

CTD Station

Latitude

Longitude

N

δ18O ptero

SD

δ13C ptero

SD

15

32.02

−30.74

3

1.06

0.05

0.82

0.08

23

23.16

−40.60

3

0.43

0.20

0.45

0.16

25

20.57

−38.59

3

0.18

0.09

0.68

0.10

37

4.03

−26.47

3

−0.13

0.28

0.66

0.20

42

−4.62

−25.00

3

0.04

0.11

0.77

0.04

48

−15.29

−25.05

3

0.41

0.14

0.56

0.08

50

−18.52

−25.10

2

0.77

n.a.

0.84

n.a.

56

−25.75

−24.99

3

1.08

0.17

0.83

0.10

60

−30.20

−27.92

3

0.95

0.25

1.28

0.12

62

−34.15

−33.49

3

1.40

0.07

1.60

0.17

66

−38.11

−39.33

3

2.06

0.07

1.97

0.21