Table 2. Organic matter characterisation of seabed sediments in Whittard Canyon.
| ROV Dive Site | Sample depth (mwd) | TOC (mmolg−1) | Total Lipid concentration ngg−1 (µg gTOC−1) | Molar C/N ratios | EPA ng g−1 (µg gTOC−1) | DHA ng g−1 (µg gTOC−1) | C18∶1 Z-D9 ng g−1 (µg gTOC−1) |
| D01 | 1065 | 0.1 | 49032.3 (41648.3) | 13.0 | 0.0 (0.0) | 0.0 (0.0) | 24.9 (21.1) |
| D02* | 1385 | 0.7 | 37961.7 (4740.6) | 9.7 | 690.4 (87.4) | 561.6 (73.3) | 1042.2 (131.9) |
| D05* | 3296 | 0.6 | 22386.5 (3043.9) | 9.5 | 163.9 (22.3) | 0 .0 (0.0) | 2377.8 (323.3) |
| D06 | 3646 | 0.6 | 14660.4 (2375.9) | 8.3 | 54.6 (10.0) | 22.9 (4.7) | 193.2 (31.9) |
| D07 | 3411 | 0.6 | 25792.0 (2820.5) | 9.5 | 1275.1 (140.3) | 559.0 (61.3) | 265.8 (28.9) |
| D11* | 2483 | 0.2 | 11541.1 (4265.5) | 7.6 | 431.7 (161.5) | 200.8 (74.6) | 239.8 (88.7) |
| D12* | 1299 | 0.7 | 29870.2 (4409.7) | 8.6 | 1747.9 (307.2) | 1095.8 (166.3) | 634.3 (105) |
Sediment samples were obtained from ROV pushcores. Data presented are for the surficial sediments only (0–0.5 cm). POC: particulate organic carbon; TOC: total organic carbon;
*stations/sites in the vicinity of cold-water coral communities.