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 |