Table 3 Depth range of living occurrence of Madrepora oculata (DR-LOM) recorded for each cold-water coral mound.

From: Madrepora oculata forms large frameworks in hypoxic waters off Angola (SE Atlantic)

Coral mound

DR-LOM (m)

DR-CTD (m)

DO (mL L−1)

Temperature (°C)

Salinity

Min–max

Mean ± SD

Min–max

Mean ± SD

Min–max

Mean ± SD

Anna ridge

./.

251–336

0.7–0.9

0.8 ± 0.1

10.1–14.2

12.1 ± 1.2

34.9–35.4

35.2 ± 0.1

Snake

./.

256–320

0.7–0.8

0.7 ± 1.0

9.4–12.7

11.1 ± 1.0

34.9–35.3

35.1 ± 0.1

Castle

332–364

332–449

0.6–0.9

0.8 ± 0.6

7.8–9.3

8.4 ± 0.6

34.6–34.9

34.8 ± 0.1

Scary

357–382

335–428

0.5–0.7

0.7 ± 0.3

8.7–10.0

9.1 ± 0.3

34.7–34.9

34.8 ± 0.0

Buffalo

343–389

343–405

0.7–0.8

0.7 ± 1.0

9.1–12.2

10.3 ± 1.0

34.8–35.2

35.0 ± 0.1

Valentine (a)

416–472

413–474

0.7–1.3

0.9 ± 0.2

7.9–8.7

8.1 ± 0.2

34.7–34.8

34.7 ± 0.0

Valentine (b)

./.

483–502

0.9–1.3

1.03 ± 0.13

7.0–7.4

7.3 ± 0.1

34.6–34.7

34.6 ± 0.0

  1. Additionally, the range and mean values of environmental parameters (DO: dissolved oxygen concentrations) recorded by a CTD installed on the ROV during video observations are provided (DR-CTD: depth range of CTD measurements).