Table 1 Temporal development of chlorophyll a (Chl a) and alloxanthin (Allo) standing stocks (mg m⁻²) in the ice-water interface of YI (average ± SE, n = 3 sites) and in ice cores of YI (average ± SE, n = 5 sites), FYI and MYI (n = 1) on Floe 3 (4 May–4 Jun 2015).

4 May

1.0 ± 0.4

0.08 ± 0.05

14.2 ± 10.3

7164 ± 3515

5

0.09 ± 0.03

6

15.3

0.8

0.1 ± 0.02

0.01 ± 0.002

2.0 ± 0.09

823 ± 810

7

0.3 ± 0.1

0.004 ± 0.001

2.3 ± 2.3

0.3 ± 0.3

635 ± 97

0.001

8

4.4

10

9.4 ± 0.6

0.2 ± 0.1

0

2.9 ± 0.9^c

92 ± 26^c

0.7 ± 0.3

0.05 ± 0.02

0.4 ± 0.4

0.4 ± 0.4

2823 ± 1013

12

4.5 ± 0.9

0

22 ± 5.8^c

303 ± 85^c

0.4 ± 0.06

2.5 ± 1.0

434 ± 334

14

6.7 ± 1.1

1.5 ± 0.2

1.04

211 ± 40

3817 ± 725

0.3 ± 0.05

3.3 ± 0.3

0.6 ± 0.6

0.2

0.004

0.3

0.002

16

1.1 ± 0.1

0.5 ± 0.5

2.3 ± 1.2

2295 ± 1587

18

1.2 ± 0.1

0.04 ± 0.01

4.5 ± 0.5

20

2.9 ± 0.3

0.4 ± 0.2

8.5 ± 1.2

15.7 ± 3.3

3784 ± 1483

21

0.6

0.008

22

1.4 ± 0.2

0.04 ± 0.003

2.9 ± 0.5

0.8 ± 0.5

485

23

1.2

0.008

24

1.6 ± 0.3

0.03 ± 0.009

6.9 ± 3.8

107 ± 67

26

0.03 ± 0.01

8.8 ± 4.1

2.1 ± 1.1

28

0.005

0.9

0.006

29

3.1 ± 0.3

0.03 ± 0.01

90 ± 34

1 Jun

3.0 ± 0.6

0.05 ± 0.01

3

67 ± 25

4

0.003