Highlights: 01:11:01 Antipatharian with chirostylids 01:22:39 Antipatharians & starfish 01:29:04 Antipatharians and sea pens 01:32:22 Vase-shaped hexactinellid sponge

At the foot of the slope at approximately 2170 m the substrate is that of mixed sediment. There is a lot of marine snow which continued throughout this site. The fauna is dominated by ophiuroids and small white echinoids with occasional holothurians and stalked crinoids. There is evidence of bioturbation. The slope consists of areas carbonate sediment interspersed with areas of mixed sand. The carbonate substrate forms terraces, cliffs and pavements; it is on occasion overlaid with a fine layer of sediment. On all substrates small to medium rocks occur, sometimes forming the predominant substrate type.

On carbonate substrate stalked crinoids are common throughout, brisingids are occasionally very common where there are rocks or boulders. Ophiuroids and a variety of holothurians are present throughout the site. Midway along the slope corals species occur, these included Leiopathes sp., Parantipathes sp. A variety of sea pens also occur throughout the slope. Moving over the top of the slope in mixed sediment the fauna is dominated by xenophyophores and sea pens, holothurians and corals such as Bathypathes sp., Leiopathes sp. and Antipathes sp. are present. Stalked crinoids and brisingids also occur here.

START VIDEO [00:00:00]/[17:59:35] [1] Dive starts properly after [00:01:00]. Area is mixed mud and pebbles. Ophiomusa lymaniand white echinoids (OTU559) are abundant. [00:04:00] Similar to T37 there is an aggregation of juvenile/small jellyfish (black/red) which the ROV passes through. [00:13:00] [2] areas of sloping carbonate or boulders are mosaicked with mixed mud and pebbles. Stalked crinoids, especially Porphyrocrinus thalassae, and O. lymani dominate hard and mixed substrates respectively. [00:18:00] [3] An extended area of O. lymani on mixed substrate, a couple of carbonate protrusions and rare cobbles/boulders are not heavily colonised. [00:34:00] [4] Landscape steeper, geogenic reef of cobbles/boulders and sloping carbonate. Mixed stalked crinoids dominate, with mixed erect corals (gorgonians/antipatharians). [00:48:00] [5] still on a steep slope, the mixed sediment dominates with xenophyophores (Syringammina fragilissima) and seapens especially cf. Anthoptilum sp. (OTU1107) both abundant. Sparse boulders continue with little associated fauna. [00:52:00]-[01:08:00] stopped to sample cf. Anthoptilum sp and two pushcores. [01:10:00]-[01:13:00] stopped for imagery of Leiopathes sp and litter entangled (DHL). [01:21:00] [6] dense cobbles and boulders on steep slope, mosaicked with areas of steep carbonate. Again stalked crinoids and mixed corals dominate, although here Anacalypsicrinus nefertiti and uncoiled Stichopathes sp . (OTU560) are the most prolific species. [01:27:00] [7] the slope is still steep, mixed mud and pebbles host sea pens (especially Halipteris cf. finmarchica) and Acanella arbuscula, with continued mixed corals, stalked crinoids and sponges on boulders. [01:29:00] [8] fewer boulders, xenophyophores and seapens are dominant, although Acanella arbuscula is also still abundant. Images reveal that cup corals are very abundant also but these are unclear from the video. [01:32:00] [9] boulders and cobbles denser, with mixed corals, sponges and stalked crinoids, while the mixed substrate is dominated by sea pens, cup corals still abundant in images. [01:47:00] Stop for imagery until END VIDEO [01:49:00]/[19:48:49].