NA149_H1952_(3of6)_20230524_030953Z
Channel: Nautilus Live Dive Recordings
Date: 2023-07-20

This playlist includes recordings of all ROV Hercules dives conducted during a single Ocean Exploration Trust expedition aboard E/V Nautilus. Each dive is divided into two-hour segments. File names include:

Cruise ID_Dive Number_ File(XofX) _Date[yyyy-mm-dd]_Time[hhmmss]z

All files are recorded in UTC-0, the same way they are recorded by ROV Hercules' primary imaging camera.

The chapter observations presented were recorded in the data log in real-time by the scientists and data loggers aboard the ship. These are preliminary observations only. Data has not been QA/QCed or otherwise verified, and may be incomplete, contain inaccuracies, identification and spelling errors.

Scientific/research requests for the full video or for sub-sets of video can be made at https://nautiluslive.org/join/scientists-ashore-program. Please note that the YouTube videos may be incomplete and are not the full-resolution video. For press inquiries or licensing requests for reuse, please contact press@oet.org.

0:00:07 - Sample: crinoid with snail associate, ~40 cm clipping of stalk and head (Sample ID: NA149-033) (Sample Type: ROVGrab)
0:01:58 - Note: Primnoids with brittle stars, parasitic zooanthid, crinoid 
0:05:23 - Note: anemone on paramuricea and brittle stars, primnoiid, chrysogorgia
0:05:25 - Sample: eDNA, medium biodiversity, primnoiids, chrysogorgia, paramuricea, sponges, crinoids (Sample ID: NA149-034) (Sample Type: Niskin)
0:08:51 - Note: continuing on over similar substrate, large boulders over sandy bottom
0:09:12 - Note: primnoid
0:09:51 - Note: coral
0:12:03 - Note: radiolarian
0:15:04 - Note: sponges, crinoids
0:15:52 - Note: glass sponge
0:17:24 - Note: victorgorgia? with venus fly trap anemone
0:18:13 - Note: brittle star associates
0:20:51 - Note: holding to get still shot
0:23:56 - Note: sponge a little bit ago
0:25:23 - Note: accumulated sand piles, abundant crinoids, some corals
0:26:08 - Note: heading ~170 degrees, over mostly rocky substrate with sand patches, ~1140 m depth
0:26:37 - Note: primnoiid
0:27:22 - Note: paragorgia bubble gum coral
0:27:58 - Note: with brittle star
0:29:21 - Note: ground fault not actually a ground fault
0:31:08 - Note: holothurian
0:32:49 - Note: chrysogorgia
0:34:22 - Note: iridogorgia, large size
0:35:35 - Note: squat lobster and shrimp associates
0:37:30 - Note: sponge, abundant crinoids, primnoiids
0:38:20 - Note: rocky and sandy substrate with sandy patches
0:38:52 - Note: shrimp associates in sponge
0:39:58 - Note: still cruising around the top of guyot, heading ~230 degrees at ~1140 m
0:42:07 - Note: approaching larger sandy patch
0:43:10 - Note: holding position to follow rock face
0:45:21 - Note: primnoiid, paramurciedea
0:49:47 - Note: glass sponge
0:52:26 - Note: still seeing paramurceids and primnoids
0:55:26 - Sample: eDNA, medium diversity; paramurceiids, primnoiids, sponges, sea tars (Sample ID: NA149-035) (Sample Type: Niskin)
0:57:18 - Note: moving up to wards the top of the rock wall
0:58:30 - Note: abundant crinoids at top
0:58:48 - Note: sea star on coral
1:00:59 - Note: sea star on paramuricea with brittle star
1:01:47 - Note: corallivory
1:04:28 - Note: predation on paramuriceid by sea star
1:10:09 - Sample: ~10 cm clipping of paramuriceid being predated by sea star (Sample ID: NA149-036) (Sample Type: ROVGrab)
1:12:51 - Note: continuing along top of rock wall, heading ~230 degrees
1:14:16 - Note: coraliid, hemicrimnium?
1:16:57 - Note: with basket star, brittle star, crinoid, paramuricea competitor
1:18:21 - Note: trouble shooting DC ground fault on Herc
1:19:43 - Note: heading back down the slope, west from ~1130 m
1:23:03 - Note: similar bio, abundant crinoids, paramuriceids, primnoids
1:24:46 - Note: down wall to ~1140 m
1:25:37 - Note: stalk sponge
1:27:34 - Note: victorgorgia
1:29:08 - Note: iridogorgia
1:32:52 - Note: sponge
1:34:44 - Note: continuing along rock wall at ~1150 m
1:35:09 - Note: irigogorgia, sponge
1:35:41 - Note: still paramuriceids and primnoids
1:37:57 - Note: large coralium with crinoids, ~2 m across
1:39:54 - Note: 30 s interval for DCS
1:42:00 - Note: venus fly trap anemones
1:44:39 - Note: cup coral
1:48:58 - Note: continuing down the wall towards the a valley floor
1:51:41 - Note: continuing to see primarily paramuriceids,  primnoids and crinoids
1:52:08 - Note: paragorgia
1:54:51 - Note: new coral, with brittle stars and crinoid, paracleptiphora?
1:56:02 - Note: DSC captures still on 30 s intervals
1:57:38 - Note: primnoid on right, paracleptiphora?
1:59:43 - Note: paramuriceia with basket star