NA149_H1958_(4of6)_20230531_163042Z
Channel: Nautilus Live Dive Recordings
Date: 20/07/2023

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.

0:00:11 - Note: glass sponge
0:00:15 - Note: sponge
0:01:23 - Note: poliogonid sponges
0:03:49 - Note: poliogonid sponges
0:04:39 - Note: dogfish
0:04:46 - Note: cusk eel
0:04:57 - Note: branching bamboo coral
0:06:22 - Note: bamboo coral whip
0:06:31 - Note: iridigorgia
0:07:15 - Note: iridigorgia
0:08:25 - Note: bamboo coral with squat lobster associates
0:10:34 - Note: cusk eel
0:10:55 - Note: anemone
0:12:58 - Note: still continuing along the same wall, same bio and geo, heading ~50 degrees at ~1440 m
0:16:49 - Note: looking at base of wall, some fallen boulders, flat rocky field of same type of rock, low bio
0:17:13 - Note: turning back towards the wall
0:18:23 - Note: stalked crinoid, red
0:19:58 - Note: rock pen
0:26:16 - Note: hydroid?
0:29:48 - Note: iridigorgia
0:32:14 - Note: Chrysogorgia with shrimp associate
0:41:51 - Note: moving towards a boulder field and away from the wall, the wall seems to be coming to an end. Still heading ~50 degrees at ~1420 m
0:42:32 - Note: chrysogorgia and predatory tunicate
0:43:13 - Note: iridigorgia
0:45:16 - Note: metallogorgia
0:45:47 - Note: chrysogorgia with shrimp associalte
0:48:04 - Note: iridigorgia
0:48:52 - Note: sponge attachment threads
0:49:00 - Note: stalked crinoids
0:49:25 - Note: predatory tunicate, anthomastus
0:50:34 - Note: metallogorgia
0:50:46 - Note: iridigorgia
0:51:14 - Note: coral diversity has increased slightly as we near the end of the wall
0:51:22 - Note: sponges
0:51:30 - Note: iridigorgia
0:52:23 - Note: bamboo coral
0:52:40 - Note: chrysogorgia
0:53:25 - Note: iridigorgia
0:54:40 - Note: crinoid
0:55:22 - Note: chrysogorgia
0:56:30 - Note: chrysogorgia
0:56:39 - Note: crinoid
0:57:47 - Note: iridigorgia
0:58:55 - Note: sea spider, pycnogonid
1:01:09 - Note: passed wp4, continued to follow wall instead of moving toward wp3 or wp5, heading toward wp6 ~50 degrees at ~1440 m
1:01:22 - Note: predatory tunicate
1:04:13 - Note: iridigorgia
1:06:21 - Note: sponge
1:06:55 - Note: anemone
1:08:20 - Note: stalked crinoid
1:08:55 - Note: bamboo coral whip
1:09:08 - Note: stalked crinoid
1:13:43 - Note: following along base of wall, marked by large boulders on sand, still heading ~50 degrees at ~1440 m, nearing wp6
1:14:04 - Note: glass sponge, crinoid, iridigorgia
1:15:47 - Note: crinoid
1:16:23 - Note: sponge
1:17:45 - Note: sponge
1:19:18 - Note: crinoids
1:19:25 - Note: iridigorgia
1:19:47 - Note: high winds topside
1:19:51 - Note: sponge
1:21:11 - Note: crab
1:26:39 - Note: followed steep rock wall for past 4 hours, very low bio, predominantly iridigorgia and sponges with occasional bamboo corals. Coral diversity began to increase slightly towards the end of the wall with increasing prevalence of chrysogorgia and metallogorgia, still with low abundance. Nearing northeast end of rock wall.
1:31:48 - Note: glass sponge sighting
1:33:05 - Note: dive plan remains to continue transit along the passage between knolls WP 6 and WP 7
1:34:42 - Note: id for two sponge sightings, Pheronematidae Poliopogon
1:36:06 - Note: Iridigorgia sighting from far
1:46:16 - Note: substrate is mainly rock slabs with a sand passage between
1:48:31 - Note: continuing upslope the sides of the knoll
1:48:42 - Note: Paragorgia sighting
1:52:18 - Note: possible sea pen
1:53:01 - Note: noticeable current, but team can continue with dive
1:53:23 - Note: Euplectallum? sea pen
1:54:22 - Note: id correction, Anthoptillum
1:56:38 - Note: Halosour? fish
1:58:36 - Note: crinoid sighting in some very large boulders