NA149_H1961_(4of5)_20230604_155807Z
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.

0:03:28 - Sample: primnoids, hemicorallium, cup coral, paramuriceids, black coral, bamboo coral (Sample ID: NA149-136) (Sample Type: Niskin)
0:04:42 - Note: iridigorgia
0:06:30 - Note: continuing over sand flats towards wp3 up slope, heading ~270 degrees, at ~ 1285 m
0:08:14 - Note: sea pen
0:10:21 - Note: primnoid?
0:10:28 - Note: sea pen
0:11:18 - Note: sea pen
0:14:25 - Note: paramuriceid, hemicorallium, victorgorgia, sponges, bamboo coral
0:15:23 - Note: at summit of secondary cone, showing relatively high abundance and diversity
0:15:36 - Note: primnoids
0:17:30 - Note: primnoids
0:18:12 - Note: summit at ~1275 m
0:18:41 - Note: primnoids, paramuriceids, sponges
0:20:40 - Note: at wp3, heading towards wp4 ~270 degrees
0:20:46 - Note: dog shark
0:21:53 - Note: paramuriceids, hemicorallium, bamboo corals, primnoids, iridigorgia, sponges
0:23:04 - Note: primnoid, paramuriceid, hemicorallium
0:23:38 - Note: calyptophora primnoid
0:24:51 - Note: sea pen
0:28:31 - Note: paramuriceids, hemicorallium, sea star, primnoids, victorgorgia
0:29:37 - Note: walteria sponges
0:31:15 - Note: paramuriceids
0:31:31 - Note: iridigorgia
0:31:43 - Note: bamboo corals?
0:32:06 - Note: primnoids
0:33:55 - Note: paramuriceids, primnoid with crinoids
0:35:41 - Note: heading across summit, heading down the other side of the guyot, lots of the same corals, high density 
0:37:35 - Note: substrate consists of rock rubble fields over sandy areas as heading down the other side of the feature
0:38:31 - Note: primnoids, bamboo corals, sea pens, sponges, paramuriceids
0:42:55 - Note: iridigorgia, paramuriceids, primnoids, generally similar diversity but on average larger individuals
0:44:29 - Sample: paramuriceids, iridigorgia, primnoids (Sample ID: NA149-137) (Sample Type: Niskin)
0:50:00 - Sample: roundish black rock, FeMn crust (Sample ID: NA149-138) (Sample Type: ROVGrab)
0:51:04 - Note: off bottom
0:51:10 - Dive Status:  ROV Off bottom 
0:56:31 - Note: from wp2 to summit showed relatively consistent substrate of occasional rocky patches projecting from sandy fields, rocky patches showed a high coral abundance and diversity and several other organisms including sponges, holothurians, sea stars and several fish, average size of corals was larger on the west slope of the guyot just past the summit compared to the east side on the way up
1:00:12 - Note: plectathuria