TABLE 1.
Sites of the Eastern Tropical Pacific of Costa Rica sampled in this study, with the respective values of the environmental variables measured.
| Sample | RV | Site | Date | Depth (m) | Temperature (°C) | Salinity (PSU) | DO (mg/L) | pH | Data sources* |
| A1 | Atlantis | Mound 12** | 24/10/18 | 996 | 5.06 | 34.57 | 1.10 | 7.62 | 1, 6 |
| A2 | Atlantis | Quepos slide** | 25/10/18 | 380 | 11.75 | 34.76 | 0.20 | 7.71 | 1, 7 |
| A3 | Atlantis | Quepos plateau | 26/10/18 | 2,200 | 2.06 | 34.60 | 3.73 | 8.06 | 2, 4, 6 |
| A4 | Atlantis | Seamount 3 | 28/10/18 | 1,383 | 3.35 | 34.60 | 1.67 | 7.70 | 2, 4, 6 |
| A5 | Atlantis | Mound 11** | 3/11/18 | 1,024 | 4.83 | 34.57 | 1.24 | 7.67 | 6, 7 |
| A6 | Atlantis | Jaco scar** | 4/11/18 | 1,788 | 2.54 | 34.63 | 2.42 | 7.61 | 1, 6 |
| A7 | Atlantis | Parrita seep** | 5/11/18 | 1,410 | 3.41 | 34.60 | 2.21 | 7.71 | 6 |
| A8 | Atlantis | Quepos plateau | 26/10/18 | 1,873 | 3.50 | 34.61 | 3.11 | 8.06 | 1, 3 |
| F1 | Falkor | The thumb** | 10/1/19 | 1,072 | 4.54 | 34.58 | 1.22 | 7.69 | 4, 7 |
| F2 | Falkor | Parrita scar | 11/1/19 | 1,419 | 3.35 | 34.61 | 2.08 | 7.67 | 4, 5 |
| F3 | Falkor | Rio bongo | 13/1/19 | 659 | 14.41 | 34.93 | 1.50 | 7.60 | 4, 7 |
| F4 | Falkor | Subduction seep | 14/1/19 | 3,474 | 1.88 | 34.66 | 4.20 | 7.71 | 4, 5 |
| F5 | Falkor | Seamount 5.5 | 15/1/19 | 1,540 | 3.00 | 34.62 | 2.64 | 7.70 | 4, 5 |
| F6 | Falkor | Seamount 7 | 16/1/19 | 1,320 | 4.11 | 34.59 | 1.80 | 7.67 | 4, 5 |
| F7 | Falkor | Coco Canyon | 18/1/19 | 950 | 5.02 | 34.57 | 1.40 | 8.12 | 4, 5 |
| F8 | Falkor | Mound Jaguar** | 25/1/19 | 1,903 | 2.43 | 34.63 | 3.13 | 7.75 | 4, 5 |
*1, AUV Sentry sensors; 2, HOV Alvin sensors; 3, HOV Alvin niskin bottle; 4, ROV SuBastian sensors; 5, ROV SuBastian niskin bottle; 6, RV Atlantis CTD; 7, RV Falkor CTD. **Seep areas.