Marine Institute
SeaRover Dive Video

D554 Transect PB11 Muddy slope with sparse/rare epifauna. Non Priority. Features: Straddles SAC, depth, mound. Water depth: -2540 m. TL: 2.4 km SOL: 15° 17.442' W 51° 50.348' N

Muddy sediment with burrows and bioturbation throughout. Most frequent benthic species include sediment dwelling cup corals and sea pens. Species abundance and diversity is low throughout this dive. Some eels, grenadiers and a ray are seen.

START VIDEO [00:00:00]/02:25. Muddy sediment on gentle/moderate slope throughout the entire dive. Sparse and rare epifauna, including many species of Actinopterygii and a few isolated scleractinians. Therefore, the dive is characterized by a single type of sediment and infauna are likely to dominate, however the latter is far from video analysis possibilities. [00:00:00] ROV samples 2 pushcores. [00:07:00]-[00:22:00] ROV stops for sampling of 2 scleractinians. [00:31:00] ROV stops for imagery. Vision obscured/mud cloud. [01:08:00] Possible trawling marks. END VIDEO [01:56:00]/04:21.

Progression Start Duration Code Name
1[00:00:00]01:55:27M.AtUA.MuAtlantic upper abyssal mud

Cnidaria
Cerianthidae sp. 1 : 2 : R
Scleractinia sp. (mud butterfly) : 1130 : R
Caryophyllia sp. 2 : 6 : R
Caryophyllia sp. 5 (bullseye) : 584 : R
Flabellum sp. : 1056 : R
Iridogorgia sp. : 9997 : R
cf. Halipteris sp. : 1060 : R
Rhodaliidae sp. 1 : 950 : R
Arthropoda

Neolithodes grimaldii : 1063 : R
Galacantha sp. : 1144 : R
Eucarida sp. : 1106 : R
Echinodermata
Ophiomusa lymani : 551 : R
Pterasteridae sp. : 299 : R
Chordata
Leucoraja sp. : 1067 : R
Coryphaenoides guentheri : 577 : R
Coryphaenoides rupestris : 566 : R

Lepidion eques : 249 : R
Cataetyx laticeps : 1111 : R

Number of species = 18

© Marine Institute, MERC Consultants, Bernard Picton 2022