Table 1.
Physical characteristics of coral cores and chemical characteristics of the surrounding seawater.
| Core ID | LobataHead04 | LobataHead06 | LobataHead07 |
|---|---|---|---|
| Location | SGD Seep | SGD Seep | Southern Drill Site |
| Latitude | 20° 56.326′ N | 20° 56.318′ N | 20° 56.236′ N |
| Longitude | 156° 41.587′ W | 156° 41.589′ W | 156° 41.611′ W |
| Distance From Seep (m) | 16 | 0 | 156 |
| Water Depth (m) | <2 | <2 | 3 |
| Collection Status | Alive | Dead | Alive |
| Isotope Date Range Sampled | 1988–2013 | 1983–2008 | 1973–2013 |
| Bioerosion (% vol)* | 5.9 | 14.6 | n/a |
| Growth Rate (cm yr−1)* | 0.72 | 0.69 | 0.9 |
| Seawater Nitrate (µmol L−1)* | 0.41 ± 0.18 (n = 37) | 20.35 ± 23.32 (n = 37) | n/a |
| POM δ15N (‰) | +6.6 ± 2.1 (n = 17) | +3.4 ± 2.2 (n = 9) | |
| 2013 Seawater δ15NNO3 (‰) | +31.5 ± 2.1 (n = 3) | +8.0 ± 1.2 (n = 3) | |
| 2016 Seawater δ15NNO3 (‰)** | + 70.4 ± 6.5 (n = 28) | n/a | |
The above table contains a summary of the important physical and chemical characteristics of the coral cores and seawater surrounding each site. Bioerosion, growth rate and nitrate concentration data (indicated by *) were previously published in Prouty et al.21. 2016 seawater δ15NNO3 values (indicated by **) were previously published in Prouty et al.59. Values are reported as average ± standard deviation. Seawater nitrate concentrations and 2016 seawater δ15NNO3 values based on 6 day sampling period in March 2016, while 2013 seawater δ15NNO3 was measured on samples collected in December 2013.