Table 4 Photosynthetic efficiency and dissolved trace metals across the Drake Passage and the Western Antarctic Peninsula.

From: Iron and manganese co-limit the growth of two phytoplankton groups dominant at two locations of the Drake Passage

 

Latitude

Longitude

dFe

dMn

dFe:dMn

Fv/Fm

 

min−1

min−1

nM

nM

nM:nM

rel.unit

PS97

 Station #1

60° 01.08′ S

65° 41.63′ W

2.88

0.36

8.0

0.17 ± 0.02

 Station #2

60° 44.73′ S

65° 2.00' W

nd

1.52

nd

0.27 ± 0.01

 Station #3

62° 29.90′ S

64° 17.66′ W

0.50

0.39

1.28

0.21 ± 0.02

 Station #4

62° 35.03′ S

59° 41.33′ W

4.51

6.92

0.65

0.53 ± 0.03

 Station #5

62° 26.57′ S

59° 12.24′ W

2.93

5.46

0.54

0.52 ± 0.02

 Station #6

62° 25.32′ S

58° 29.35′ W

1.53

1.53

1

0.43 ± 0.04

 Station #7

61° 49.53′ S

55° 39.02′ W

0.89

1.27

0.7

0.45 ± 0.01

 Station #8

60° 29.94′ S

55° 29.70′ W

2.99

1.21

2.4

0.36 ± 0.02

 Station #9

58° 5.01′ S

66° 3.00′ W

3.21

0.31

10.3

0.12 ± 0.03

PS112

 Station #10

62° 45.60′ S

59° 00.42′ W

1.85

2.51

0.74

0.56 ± 0.01

 Station #11

63° 00.00′ S

60° 30.00′ W

3.76

2.62

1.43

0.36 ± 0.01

 Station #12

62° 53.16′ S

60° 14.32′ W

2.42

3.05

0.79

0.52 ± 0.03

 Station #13

62° 14.23′ S

64° 33.41′ W

4.44

0.08

55.5

0.19 ± 0.02

 Station #14

61° 45.08′ S

62° 00.49′ W

1.31

0.42

3.12

0.31 ± 0.01

 Station #15

61° 01.33′ S

54° 47.30′ W

3.09

3.21

0.96

0.32 ± 0.01

 Station #16

60° 41.80′ S

54° 34.24′ W

0.29

0.98

0.29

0.35 ± 0.01

 Station #17

63° 38.78′ S

56° 29.57′ W

3.13

3.60

0.87

0.21 ± 0.01

 Station #18

61° 59.25′ S

53° 59.37′ W

1.92

1.85

1.04

0.39 ± 0.01

 Station #19

60° 57.51′ S

54° 44.69′ W

1.31

2.18

0.61

0.41 ± nd

 Station #20

58° 35.64′ S

58° 61.37′ W

0.06

0.11

0.54

0.12 ± 0.01

  1. Concentrations of total dissolved iron (dFe), dissolved manganese (dMn) and the 1h-dark-adapted maximum photosystem II quantum yield (Fv/Fm) were determined for 20 in situ stations sampled during the Polarstern expeditions PS97 and PS112 using GoFlo bottles. Values represent the mean ± SD (n = 3). nd denotes not determined.