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| About | Mapping | Dive list | Listed species | Pressures | Species - OTUs |
D565 Transect PB13 Mainly hard substrata throughout the dive. Reefs formed of sponges, Brisinga and soft corals. Not Priority. Features: Very Deep Ridge. Water Depth: -2800 m. TL: 2.5 km SOL: 15° 19.017' W 51° 41.621' N
Highlights: Bamboo coral Demosponge - Inflatella pellicula? & antipatharian coral - Stauropathes Stalked sponge Yellow stalked crinoids - Anachalypsicrinus nefertiti
The seafloor contains rippled mud/pebble and cobble fields on gentle upslope with occasional areas of bedrock/carbonate/cobbles. On the upslope Chrysogorgiidae sp. and brisingiids are noted. The stalked crinoid Anachalypsicrinus nefertiti is common on dense pebble/cobble fields. Yellow sponges are also observed here. A potentially new species of the black coral Stauropathes sp. and of the soft coral Corallium sp. was observed.
START VIDEO [00:00:00]/22:28. ROV samples 1 pushcore. Rippled mud/pebble and cobble fields on gentle upslope. Many epifauna species including Chrysogorgiidae sp.1 and OTU274 Brisingidae. [00:35:00] ROV stops for imagery of Stauropathes sp. [00:49:00] dense pebble/cobble fields host Anachalypsicrinus nefertiti OTU1031. [01:25:00] here substrate is made of bedrock/carbonate/cobbles. [01:57:00] ROV moves slowly to sample images of Corallium sp. [02:02:00] ROV stops for imagery of yellow sponges (unknown species). END VIDEO [02:05:50]/00:33.
| Progression | Start | Duration | Code | Name |
|---|---|---|---|---|
| 1 | [00:00:00] | 00:12:44 | M.AtUA.Mu | Atlantic upper abyssal mud |
| 2 | [00:12:45] | 00:22:01 | M.AtUA.Mu | Atlantic upper abyssal mud |
| 3 | [00:34:47] | 00:30:11 | M.AtUA.Ro | Atlantic upper abyssal rock and other hard substrata |
| 4 | [01:04:59] | 00:21:50 | M.AtUA.Ro | Atlantic upper abyssal rock and other hard substrata |
| 5 | [01:26:50] | 00:16:08 | M.AtUA.Ro | Atlantic upper abyssal rock and other hard substrata |
| 6 | [01:42:59] | 00:02:11 | M.AtUA.Ro | Atlantic upper abyssal rock and other hard substrata |
| 7 | [01:45:11] | 00:14:33 | M.AtUA.Ro | Atlantic upper abyssal rock and other hard substrata |
| 8 | [01:59:45] | 00:06:06 | M.AtUA.Ro | Atlantic upper abyssal rock and other hard substrata |
Porifera
Asconema sp. (Porifera massive globose 14) : 650 : R
Porifera cup 2 : 535 : R
Porifera encrusting sp. 1 (white) : 1 : R
Porifera encrusting sp. 15 (yellow) : 58 : R
Porifera globose (muddy) : 1128 : R
Porifera lamellate (Hexactinosida) : 1151 : R
Porifera lamellate lobose (fleshy) : 1132 : R
Porifera massive globose sp. 6 : 137 : R
Porifera sp. routs shape : 9979 : R
Sponge yellow sp. routs : 9976 : R
Cnidaria
Cerianthidae sp. 1 : 2 : R
Actiniaria sp. 20 : 605 : R
Actiniaria sp. 4 : 109 : R
Relicanthus sp. 1 : 1207 : R
Leiopathes sp. (dense) : 612 : R
Dendrobathypathes ( prev. Stauropathes sp. 1) : 1015 : R
Stauropathes arctica : 547 : R
Anthomastus grandiflorus : 278 : R
cf. Chrysogorgiidae sp. : 1200 : R
Chrysogorgidae sp. 1 : 1008 : R
Corallium sp. 1 : 1202 : R
Corallium sp. 2 : 1203 : R
Isididae sp. (fine branching) : 1064 : R
Paragorgia (twiggy) (poss. Swiftia) : 1065 : R
Umbellula sp. : 581 : R
Arthropoda
Neolithodes grimaldii : 1063 : R
Majoidea sp. : 1121 : R
Eucarida sp. (red deep) : 1138 : R
Echinodermata
Leptometra celtica : 437 : R
Bathycrinidae sp. : 1141 : R
Koehlermetra porrecta : 315 : R
Anachalypsicrinus nefertiti : 1031 : R
Crinoidea sp. 1 : 131 : R
Pentametrocinidae sp. : 1210 : R
Ophiuroidea (indet.) : 1076 : R
Brisingidae sp. : 274 : R
cf. Henricia sp. (deep) : 1154 : R
Solasteridae sp. (white) : 9977 : R
Pterasteridae sp. : 299 : R
cf. Echinus (deep pink spine) : 1129 : R
Mesothuria intestinalis : 536 : R
cf. Hansenothuria sp. : 1211 : R
Chordata
Rajiformes (indet.) : 1159 : R
Coryphaenoides guentheri : 577 : R
Notacanthiformes sp. 1 : 1012 : R
Number of species = 45
© Marine Institute, MERC Consultants, Bernard Picton 2022