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| About | Mapping | Dive list | Listed species | Pressures | Species - OTUs |
D568 Transect PB31 Solenosmilia reefs. Solenosmilia colonies on cobble/boulders with many epifauna, including sponge aggregations. Priority. Features: Canyon Wall, Deep, NPWS selected. Water depth: -1730 m. TL: 2.4 km SOL: 15° 0.060' W 52° 2.814' N
Highlights: Radicipes cf. gracilis Yellow sea fan Sponges Radicipes cf. gracilis Soft coral - Jasonisis? Antipatharian coral & octopus
The seafloor here is that of muddy sediment and a carbonate wall with the corals Stichopathes sp., Paramuricea sp. and Eknomisis sp. dominant. Solenosmilia variabilis occurs on a boulder/cobble sediment with mud; sponge aggregations on this coral. On a steep mud slope with occasional cobbles, Paramuricea sp., Radicipes sp. and Ophiomusium lymani co-dominate. Mud with scattered cobbles, boulders and coral reef hosts Leiopathes sp., sponges, brisingiids, Paragorgia sp. and Jasonisis sp. Fishing rope and net were observed on the sea floor towards the top of the slope.
START VIDEO [00:00:00]/17:50. Muddy sediment/carbonate wall. Stichopathes sp. OTU283, Paramuricea sp. OTU1050 and Eknomisis sp. OTU649 dominate on wall. [00:08:00] ROV climbs a steep wall/mound. [00:22:00] ROV stops for imagery of Disctichoptilum gracile OTU1108. [00:30:00] Solenosmilia variabilis colonies on boulder/cobble sediment/mud. Sponge aggregations on coral. ROV stops for imagery of coral colony. [00:37:00] Now mud steep slope with occasional cobbles. Paramuricea sp. OTU1050, Radicipes sp. OTU1044 and Ophiomusa lymani OTU551 co-dominate. [00:40:00] ROV stops for imagery of Eknomisis sp OTU649. [00:46:00] Mud with scattered cobbles/boulders/coral reef host Leiopathes sp OTU305, sponges, Brisingidae OTU274. [00:58:00] ROV stops for imagery of coral colony. [01:31:00] ROV stops for imagery and sampling of encrusting yellow sponge OTU58. [02:00:00] Here gentle down slope. [02:09:00] ROV stops for imagery of Paragorgia sp. and Jasonisis sp. OTU1070 on boulder. [02:22:00] Fishing rope on the sea floor. [02:38:00] Fishing net on the sea floor. [02:46:00] ROV stops for imagery of Jasonisis sp OTU1070. END VIDEO [02:48:38]/20:39.
| Progression | Start | Duration | Code | Name |
|---|---|---|---|---|
| 1 | [00:00:00] | 00:30:04 | M.AtLB.Ro.MixCor | Mixed cold water coral community on Atlantic lower bathyal coarse sediment |
| 2 | [00:30:05] | 00:02:55 | M.AtLB.Ro.MixCor | Mixed cold water coral community on Atlantic lower bathyal coarse sediment |
| 3 | [00:33:01] | 00:12:29 | M.AtLB.Ro.MixCor | Mixed cold water coral community on Atlantic lower bathyal coarse sediment |
| 4 | [00:45:31] | 00:09:31 | M.AtLB.Ro.MixCor | Mixed cold water coral community on Atlantic lower bathyal coarse sediment |
| 5 | [00:55:03] | 01:02:30 | M.AtLB.Ro.MixCor | Mixed cold water coral community on Atlantic lower bathyal coarse sediment |
| 6 | [01:57:34] | 00:01:58 | M.AtLB.Bi.CorRee | Atlantic lower bathyal cold water coral reef (biogenic structure) |
| 7 | [01:59:33] | 00:52:22 | M.AtLB.Mu | Atlantic lower bathyal mud |
Porifera
Hyalonema sp. 1 : 917 : R
Asconema sp. : 1038 : R
Aphrocallistes beatrix : 264 : R
cf. Polymastia boletiformis : 1030 : R
Porifera cup 2 : 535 : R
Porifera encrusting sp. 1 (white) : 1 : R
Porifera encrusting sp. 15 (yellow) : 58 : R
Porifera lamellate (Hexactinosida) : 1151 : R
Porifera lamellate sp. 7 : 422 : R
Porifera massive lobose sp. 20 : 604 : R
Porifera massive lobose sp. 21 (Hertwigia sp. ?) : 611 : R
Blue Porifera encrusting : 800 : R
Cnidaria
yellow coral : 9974 : R
Cerianthidae sp. 1 : 2 : R
Actiniaria sp. 20 : 605 : R
Actiniaria sp. 6 : 217 : R
Actinoscyphiidae sp. 1 (pink) : 1047 : R
Adamsia sp. : 1066 : R
Stichopathes cf. gravieri : 283 : R
Leiopathes sp. : 305 : R
Bathypathes sp. (brown) : 284 : R
Parantipathes sp. : 1042 : R
Stauropathes arctica : 547 : R
Caryophyllia sp. 2 : 6 : R
Solenosmilia variabilis : 700 : R
Zoantharia sp. 6 (=Hexacorallia) : 293 : R
Anthomastus grandiflorus : 278 : R
Pseudoanthomastus sp. : 1080 : R
Anthothela grandiflora : 311 : R
Radicipes cf. gracilis : 1044 : R
Chrysogorgidae sp. 1 : 1008 : R
Acanella arbuscula : 585 : R
Eknomisis sp. : 649 : R
Lepidisis sp. : 557 : R
Paragorgia (twiggy) (poss. Swiftia) : 1065 : R
Paramuricea sp. : 1050 : F
Gorgonacea sp. (pink, Solenosmilia assoc.) (Jasonisis) : 1070 : F
Halipteris cf. finmarchica : 622 : R
Pennatula cf. inflata : 1083 : R
Distichoptilum gracile : 1108 : R
Umbellula sp. : 581 : R
Annelida
Bonellia viridis : 267 : R
Serpulidae sp. 1 : 106 : R
Arthropoda
Chirostylidae sp. 1 (indet.) : 285 : R
Munida sarsi : 200 : R
Paguridae sp. : 205 : R
Colossendeis sp. 1 : 1059 : R
Mollusca
Graneledone verrucosa : 973 : R
Echinodermata
Bathycrinidae sp. 2 cf. Porphyrocrinus thalassae : 1045 : R
Pentametrocrinus atlanticus : 436 : R
Koehlermetra porrecta : 315 : R
Euryalida sp. : 1307 : R
Ophiomusa lymani : 551 : O
Brisingidae sp. : 274 : R
Solaster endeca : 573 : R
Chordata
Squaliformes sp. : 569 : R
Hydrolagus cf. affinis : 1039 : R
Chimaera opalescens : 653 : R
Synaphobranchus kaupii : 440 : R
Nezumia aequalis : 1003 : R
Coryphaenoides rupestris : 566 : R
Trachyrincus sp. : 446 : R
Lepidion cf. guentheri : 1160 : R
Phycis blennoides : 1020 : R
Polyacanthonotus rissoanus : 552 : R
Cataetyx laticeps : 1111 : R
Neocyttus helgae : 563 : R
Number of species = 67
© Marine Institute, MERC Consultants, Bernard Picton 2022