NA156_H2023_(3of6)_20231103T233606Z
Channel: Nautilus Live Dive Recordings
Date: 2024-03-11

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.

00:09:43 - 20231103T234550Z Note:  norbit survey complete
00:12:03 - 20231103T234809Z Dive Status: onbottom
00:13:25 - 20231103T234932Z Note:  on bottom beginning to approach target 20m away
00:14:40 - 20231103T235046Z Note:  first sight of the wreck there are many fragments of debris, a sea cucumber and ophidiphorm fish
00:14:56 - 20231103T235103Z Note:  there is also a few halosauridae aldrovandia
00:15:40 - 20231103T235147Z Note:  first sight of wreck is the propeller which has a rutter and dive plane
00:18:04 - 20231103T235410Z Note:  on the top of the body of the aft sub there are many primnoid coral fans on it, on a portion of the rutter there are many purple actinaria sea anemones (30 or more)
00:20:43 - 20231103T235649Z Note:  there is visible rust on the dive plane along with the anemones. the rust is orange to tan/olive colored and appears more dense on the dive plane than the rutter
00:22:14 - 20231103T235820Z Note:  ophidiiform fish and halosauridae have both been seen thus far
00:24:50 - 20231104T000057Z Note:  ROVs are setting up preparing to search around the vessel
00:25:25 - 20231104T000132Z Note:  triclops still setting up
00:26:37 - 20231104T000244Z Note:  plan is to keep zeus cam wide for photogrammetry pass first and then come back along to zoom
00:27:10 - 20231104T000317Z Note:  start photogrammetry using cinema and port
00:28:54 - 20231104T000501Z Note:  there are many primnoids along the top of the sub reaching the hugherst point
00:29:24 - 20231104T000530Z Note:  anemones continue to line the side of the sub there is also a hemicorallium pink fan
00:30:24 - 20231104T000630Z Note:  small mushroom coral
00:30:44 - 20231104T000650Z Note:  there are also some small farries sponges white in color
00:33:22 - 20231104T000928Z Note:  there is also a yellow chrysogorgid and bottle brush chrysogorgia, a flytrap anemone and barrel shaped euplectellid sponge possibly
00:33:56 - 20231104T001002Z Note:  20 or more primnoids in one frame
00:35:00 - 20231104T001107Z Note:  euplectellid sponge may be regadrella sp?
00:35:22 - 20231104T001128Z Note:  stalked saccocalyx sponge
00:36:11 - 20231104T001217Z Note:  there are some brighter patches of rust yellow
00:36:38 - 20231104T001245Z Note:  pink corallidae/paragorgid fans,
00:37:06 - 20231104T001312Z Note:  can see Japanese flag on the cunning tower in atalanta camera
00:37:38 - 20231104T001345Z Note:  verified I-201 sub can see atalanta
00:38:15 - 20231104T001421Z Note:  reached a point of damage, just forward the aft with visible box
00:39:02 - 20231104T001508Z Note:  may be issues to signal OBS triclops
00:39:19 - 20231104T001526Z Note:  bamboo or primnoid whip coral
00:41:30 - 20231104T001736Z Note:  approaching end of this aft portion of the sub
00:42:09 - 20231104T001816Z Note:  ophidiform fish, may be a Diplacanthopoma sp
00:43:32 - 20231104T001938Z Note:  reached end of the keel section
00:44:24 - 20231104T002030Z Note:  viewing the cross section of the site of torpedo damage
00:47:58 - 20231104T002405Z Note:  the cross section is just forward of the cunning tower and exposes the battery no 1
00:48:56 - 20231104T002502Z Note:  there are many lines on the sub but not in a dangerous position for the ROV yet
00:49:09 - 20231104T002515Z Note:  test lights off
00:52:23 - 20231104T002830Z Note:  wood planking visible- upper decking
00:52:41 - 20231104T002848Z Note:  some portions of the wood decking has small mushroom coral recruits
00:53:14 - 20231104T002920Z Note:  sight of the type 96 aircraft gun
00:54:50 - 20231104T003056Z Note:  there is a new chrysogorgia present at the tip of the gun here the same line can be seen in 2009 imagery