NA149_H1962_(7of10)_20230605_123538Z
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.

0:01:30 - Note: bamboo coral
0:02:59 - Note: anemone and fish 
0:03:23 - Note: relicanthid maybe
0:04:39 - Note: fish is a type of ophidiid 
0:08:11 - Note: another ophidiid and sponge
0:11:59 - Note: moving back along sandy substrate passing wp 4 towards wp 5
0:19:58 - Note: more tunicates
0:21:03 - Note: pillow flows
0:23:19 - Note: possible rock sample
0:27:50 - Note: waiting for ship to come back closer to atalanta and herc
0:29:42 - Note: dc gf issue 
0:30:05 - Note: slime star in the back
0:31:35 - Note: possible rock sample
0:32:46 - Sample: Angular cantaloupe black encrusted rock sample about 15x10x8 cm  (Sample ID: NA149-151) (Sample Type: ROVGrab)
0:37:29 - Note: dead former base of stock 
0:40:59 - Note: bamboo coral with fly trap anemone on the base 
0:45:38 - Note: rattail maybe coryphaenoides with parasites on it
0:54:58 - Note: update we still passed through sandy substrate with rocky patches with high density of bio but similar bio as before, chrysigorgia, victorgorgia, walteria, crinoids, amphipods, skeleton of something with osedax worms, bryozoans, squat lobster (chirostylidae), rattail fish (one had parasites) , tunicates, sea stars (brittle and slime star) and sponges 
0:56:00 - Note: chrysigorgia abludo with a shrimp associate 
0:56:42 - Note: seen some swima polychaetes 
0:59:13 - Note: sea urchin
1:00:36 - Note: sea whips 
1:01:42 - Note: tube worms 
1:04:35 - Note: maybe a sabellid? tube worm 
1:07:42 - Note: brisingidae
1:12:07 - Note: shark
1:12:56 - Note: coming up on rocky substrate 
1:14:19 - Note: polyogan 
1:14:49 - Note: tunicate city 
1:16:33 - Note: culeolus sp. ID (tunicate)
1:18:39 - Note: Transitioned into rocky substrate on slope noting still similar bio as before very large biodiversity on rocks not so much in sandy substrate noting sponges and many tunicates, brisingidae and rocks covered with tube worms 
1:22:19 - Note: watch change
1:27:30 - Note: passed wp5, heading ~180 degrees
1:28:39 - Note: following rocky feature/ridge at ~1760 m
1:29:17 - Note: sponge
1:30:17 - Note: iridigorgia
1:30:49 - Note: primnoid wirh brittle stars
1:31:03 - Note: primnoid with brittle stars
1:34:18 - Note: brittle stars
1:35:15 - Note: sponge
1:35:24 - Note: sponge
1:36:13 - Note: Euplectellid with ctenophores
1:41:04 - Note: sandy plain at bottom of ridge with rippled fine white sand
1:41:10 - Note: dogfish
1:44:10 - Note: predatory tunicate
1:48:35 - Note: rovs figuring out which way to go
1:52:24 - Note: sponge
1:57:06 - Note: heading se ~150 degrees over dimpled sandy plain at top of seamount just off the ridgeline, ~1770 m