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| About | Mapping | Dive list | Listed species | Pressures | Species - OTUs |
D686 Transect 4 Predominantly steep muddy slope with patches of bedrock hosting a few sponge species. P2. Water depth: 2970-2650m. Feature: Slope
Highlights: Yellow demosponge - Inflatella pellicula?
Of Note: Yellow Sponges/Tunicates.
Predominantly vertical/steep walls, soft sediment and sparse epifauna. On an area of boulders and bedrock a distinct community of yellow sponges is observed and sampled.
START VIDEO [00:00:00]/15:49. Predominantly steep muddy slope with patches of bedrock hosting a few sponge species. [1] The dive starts on mud with scattered boulders. [2] Here mud veneered bedrock with vertical walls hosting yellow porifera (porifera globose sp) and sparse encrusting species. [00:15:00] ROV stops for sampling porifera globose sp. [3] [00:28:00] Here biotope changes into mud slope. [01:40:00] ROV samples two pushcores. END VIDEO [01:41:50]/17:34.
| Progression | Start | Duration | Code | Name |
|---|---|---|---|---|
| 1 | [00:00:00] | 00:02:21 | M.AtUA.Mu | Atlantic upper abyssal mud |
| 3 | [00:28:42] | 01:47:18 | M.AtUA.Mu | Atlantic upper abyssal mud |
Foraminifera
Syringammina fragilissima : 261 : R
Porifera
Porifera globose sp. : 1309 : F
Porifera lamellate (bubbles) : 1156 : O
Porifera lamellate sp. 10 : 1010 : R
Cnidaria
Cerianthidae sp. 1 : 2 : R
Stauropathes arctica : 547 : R
Anthomastus grandiflorus : 278 : R
Chrysogorgidae sp. 1 : 1008 : R
Acanella arbuscula : 585 : R
Rhodaliidae sp. 1 : 950 : R
Arthropoda
Galacantha sp. : 1144 : R
Paguridae sp. : 205 : R
Caridea (indet.) : 1077 : R
Munidopsis sp. : 1126 : R
Echinodermata
Pentametrocrinus atlanticus : 436 : R
Democrinus sp. : 1103 : R
Ophiomusa lymani : 551 : R
Brisingidae sp. : 274 : R
Pseudarchaster sp. 1 : 433 : R
Velatida sp. 1 : 199 : R
Echinothuroidea sp. : 1094 : R
© Marine Institute, MERC Consultants, Bernard Picton 2022