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Table 2 Environmental dataset for eight locations at Okinawa Island, Ryukyu Islands, Japan

From: Palythoa zoanthid 'barrens’ in Okinawa: examination of possible environmental causes

 

Oku

Bise

Manza

Toguchi

Mizugama

Sunabe

Convention Center

Makiminato

Sampling depth (m)

1 ~ 2

1 ~ 2

3 ~ 5

1 ~ 2

1 ~ 2

1 ~ 2

2 ~ 3

3 ~ 6

Temperature (°C)

        

May to June 2012 (mean/min/max)

-

24.9/23.2/25.7

25/23.6/25.8

-

25.3/24.3/26.4

-

25.4/24.1/26.2

25.3/24.3/25.9

temperature at the time of sampling

27

27.4

29

25.8

28.6

25.9

28.4

28.5

pH

8.26

8.4

8.21

8.25

8.21

8.22

8.23

8.1

DO (mg L-1)

5.35

6.61

4.37

5.23

4.66

6.04

4.41

3.56

Salinity‰

30.1

31.4

30.6

31.1

29.8

31.1

31.7

32.2

POM (mg L-1)

        

 Range

7.97 - 8.45

8.74 - 9.09

8.34 - 8.47

7.13 - 7.34

6.75 - 6.98

7.01 - 7.65

6.9 - 7.2

5.7 - 9.99

 Mean + SD

8.167 ± 0.03

8.4 ± 1.67

8.4 ± 0.00

7.22 ± 0.11

6.85 ± 0.00

7.36 ± 0.32

7.2 ± 0.17

7.2 ± 2.16

Chl a (μg L-1)

        

 Range

0.08 - 0.12

0.04

0.02 - 0.05

0.24 - 0.28

0.03 - 0.04

0.16 - 0.17

0.04 - 0.07

0.01 - 0.52

 Mean + SD

0.1 ± 0.02

0.04 ± 0.00

0.04 ± 0.01

0.27 ± 0.02

0.03 ± 0.01

0.162

0.06 ± 0.01

0.36 ± 0.02

NO3-N (μM)

        

 Range

0.26 - 0.31

0.13 - 0.16

0.23 - 0.27

4 - 4.05

1.27- 1.4

0.62 - 0.65

0.67 - 0.69

1.61 - 1.68

 Mean + SD

0.28 ± 0.02

0.14 ± 0.02

0.25 ± 0.02

4.02 ± 0.02

1.33 ± 0.06

0.64 ± 0.02

0.68 ± 0.01

1.64 ± 0.03

NO2-N (μM)

        

 Range

0.04

0.03 - 0.03

0.03

0.21 - 0.22

0.12 - 0.13

0.07

0.07

0.11

 Mean + SD

0.04 ± 0.00

0.03 ± 0.00

0.03 ± 0.00

0.214

0.12 ± 0.00

0.07

0.07 ± 0.00

0.11 ± 0.00

NH4-N (μM)

        

 Range

0.58 - 0.93

0.38 - 0.74

0.3 - 0.43

1.56 - 1.64

1.16 - 1.33

0.68 - 0.74

0.87 - 0.92

0.97 - 1.09

 Mean + SD

0.74 ± 0.17

0.53 ± 0.17

0.38 ± 0.06

1.6 ± 0.03

1.24 ± 0.08

0.70 ± 0.4

0.90 ± 0.02

1.02 ± 0.05

PO4-P (μM)

        

 Range

0.18 - 0.19

0.15 - 0.17

0.17 - 0.18

0.17 - 0.18

0.04 - 0.07

0.13 - 0.16

0.15 - 0.18

0.03 - 0.04

 Mean + SD

0.185

0.16 ± 0.01

0.17 ± 0.01

0.18 ± 0.01

0.06 ± 0.15

0.15 ± 0.02

0.16 ± 0.01

0.04 ± 0.00