[09:11:58] okexnav leaves the room [11:07:20] philhartmeyer leaves the room [11:10:05] EX2107_DIVE01 test message [11:16:50] philhartmeyer leaves the room [11:34:01] philhartmeyer leaves the room [12:00:16] philhartmeyer leaves the room [12:20:51] iscwatch leaves the room: Replaced by new connection [12:26:44] stephaniefarrington leaves the room [12:27:14] allencollins leaves the room [12:27:47] christarabenold leaves the room [12:31:05] chat-admin leaves the room [12:33:33] Morning Everyone!!!! WE hope to find the Bloody Marsh today! [12:37:12] allencollins leaves the room [12:38:51] Morning, Stephanie! [12:41:21] Morning, everyone. My name is Phil, and Frank invited me to tune in. Excited to be here! [12:41:51] allencollins leaves the room [12:46:39] stephaniefarrington leaves the room [12:51:09] test [12:51:28] Good morning. [12:51:59] Hi Phil!!!!! [12:58:50] philhartmeyer leaves the room [13:02:46] Good morning Steph and Allen, Good luck. The MB looks weird but interesting. [13:04:38] allencollins leaves the room [13:05:11] Thanks John [13:07:43] emilycrum leaves the room [13:07:43] stephaniefarrington leaves the room [13:08:58] Hello all [13:17:08] christarabenold leaves the room: Replaced by new connection [13:19:11] allencollins leaves the room [13:23:39] johnreed leaves the room [13:27:36] Just holding at depth, prior to making way to bottom. [13:28:40] Moving again. 322 meters [13:29:58] Thank you Allen for the information! [13:31:43] Cautious descent. At 332 now. [13:32:20] good morning everyone! [13:32:43] Good morning Andrea! Welcome. [13:33:26] Hopefully some wreck fish, and other fishes down there.. . . and of course, hopefully the Bloody Marsh. [13:34:08] What is the target depth? [13:34:51] Target depth is 476. Strong current making descent challenging. [13:34:59] Hello Andrea! [13:35:02] Note link to SeaTube for annotations is https://data.oceannetworks.ca/SeaTubeV3?resourceTypeId=600&resourceId=5740. The hyperlink in last night's email takes you to yesterday's dive (although the text is correct). [13:36:49] andreaquattrini leaves the room [13:37:31] @Scott -- I just clicked on teh link you just posted and I got an "internal server error" from Ocean Networks Canada. [13:37:55] https://data.oceannetworks.ca/SeaTubeV3?resourceTypeId=600&resourceId=5740 [13:38:13] Hmm> I'm on the page now and simply copied the link. [13:38:20] That worked. [13:38:57] allencollins leaves the room [13:39:34] Ah! The first time the period got incorporated into the link. [13:39:52] That is on the chatroom software! [13:40:10] Making headway. Down to 380 m [13:40:47] andreaquattrini leaves the room [13:42:55] stephaniefarrington leaves the room [13:44:40] Good morning! [13:47:06] Good morning sponge friend. Got a few good ones yesterday. [13:47:32] emilycrum leaves the room [13:47:45] iscwatch leaves the room: Replaced by new connection [13:48:17] cristianacastellobranco leaves the room [13:48:19] andreaquattrini leaves the room [13:50:14] Am I seeing the bottom, or spots on the camera? [13:50:22] sponges! [13:50:26] Yay! Can't wait to see them! [13:50:39] cristianacastellobranco leaves the room: Replaced by new connection [13:50:57] Okay, thanks. And is there currently no audio? [13:51:02] Oh! There we go! [13:53:17] Harder bottom than I was expecting. [13:53:41] yes, Stephanie. It looks like Phakellia [13:54:59] Interesting sponge-dominated area with few or no corals. I wonder if that is an indication of long-term average current speed. [13:56:40] andreaquattrini leaves the room [13:57:39] stephaniefarrington leaves the room [14:03:59] cristianacastellobranco leaves the room [14:04:19] cristianacastellobranco leaves the room: Replaced by new connection [14:07:56] cindyvandover leaves the room [14:09:39] kimberlygalvez leaves the room [14:10:02] is the depth 380m now? [14:10:36] likely Swiftia casta, but Eunicella modesta can look similar... [14:12:37] crab Bathynectes longispina [14:13:27] it reminds me one sampled in 2019, a Raspailiidae (the reticulate fan sponge) [14:14:30] Thanks Cris. Just saw note. [14:15:27] cristianacastellobranco leaves the room: Replaced by new connection [14:17:46] Fish on left [14:19:44] Another small fish on left [14:20:12] snap zooms of different fish are always welcomed :) [14:20:29] but those looked like Nezumia slcerorhynchus [14:21:40] This object doesn't look biological from a distance [14:22:04] And from up close! [14:22:16] it does look like a handle on a knife [14:22:38] Knife handle is a Dexter Russel. Good fishing knives [14:22:50] philhartmeyer leaves the room [14:23:20] I've never expected to know the identification of Knife handle :) [14:24:38] @Andrea: are these small white fans the ones you earlier suggested as Swiftia casta or Eunicella modesta? [14:25:48] Fish left [14:25:54] There is a Dictyoceratida [14:26:18] (in Christina mesophytic guide), very similar with this gray one [14:26:18] andreaquattrini leaves the room [14:27:17] So, is this typical bottom for this area? Or is this an area that has been trawled in the past, or perhaps major storm surge damage? Everything is so [relatively] small. [14:28:04] @scott we have collected both species from the region, in situ they look very similar [14:32:03] @Andrea: thanks [14:32:23] Those would be unusual rocks for this area, wouldn't they? [14:32:53] I'm assuming a carbonate underlay here, but would love to hear a geologists input. [14:37:05] Monofilament line [14:38:48] wreckfish? [14:38:54] @scott i think this habitat-pavement with sediment veneer, with sponges and small gorgonians is typical for this area. [14:38:56] Looks like a wreckfish [14:39:01] wreckfish i think [14:39:11] polyprion americanus [14:39:21] amazing! [14:41:59] white colonies looks recruitments at a same time.... [14:44:31] monetmurphy leaves the room [14:46:21] @Asako: good point! [14:47:07] @Scott is this the target ship? [14:50:15] @Asako: remains to be determined! [14:50:47] What is the fish with the white tail? [14:51:03] i didnt see it [14:51:17] kaseycantwell leaves the room [14:52:51] looked like one of those coral hakes I thought [14:53:52] @Allen: yes, That could have been it. [14:54:10] philhartmeyer leaves the room [14:57:41] andreaquattrini leaves the room [14:57:54] monetmurphy leaves the room [14:58:23] Looks like a Gempylidae or a Trichuridae [14:58:24] kimberlygalvez leaves the room [15:03:36] andreaquattrini leaves the room [15:04:06] philhartmeyer leaves the room [15:04:38] The successful coral recruits prefer the high point and bulged sides of the wreck. [15:05:10] Are these stylasterids? [15:05:22] @scott maybe because of current direction? [15:06:14] The fact that we found this wreck, to me at least, is riveting. Never too early for a pun! [15:07:47] emilycrum leaves the room [15:07:47] which direction we are facing on this? [15:10:18] andreaquattrini leaves the room [15:11:07] is there a reason the degradation is in circular patterns? [15:12:07] cristianacastellobranco leaves the room [15:13:25] asakomatsumoto leaves the room: Replaced by new connection [15:13:39] kimberlygalvez leaves the room [15:13:51] I was kicked out both from video and chat [15:13:55] andreaquattrini leaves the room [15:17:52] cristianacastellobranco leaves the room: Replaced by new connection [15:19:48] Can one of the archeologists speak to why some parts are more rusted than other parts? Is this a function of the type of metal used, or whether it was painted, or just thickness, etc.? [15:20:18] monetmurphy leaves the room [15:24:19] heatherjudkins leaves the room [15:25:33] Little hydroids around the stylasterids. [15:26:24] You can see where plates have rusted away and possibly carried away any coral recruits on that part of the hull. I expect that erosional pattern explains in part some of the coral distribution. [15:26:51] Yes, those same athecates seen earlier. But I think the white colonies are gorgonians, not stylasteriids? [15:27:11] Yes, the large field are plaxaurid gorgonians [15:27:19] Sorry: plexaurids [15:27:55] Sorry, I was just repeating what was said over science line. I am not a coral expert yet. [15:28:15] Note they are mostly the same size. Asako earlier suggested this could indicate single recruitment event in the past. [15:29:57] andreaquattrini leaves the room [15:30:29] wow, huge amounts of recruitements! but it looks recent... [15:30:59] monetmurphy leaves the room [15:31:00] Asako, what makes it look recent to you? [15:31:00] KevinRademacher leaves the room: Replaced by new connection [15:31:16] I would argue not so recent given the "holes" where the hull has failed and likely carried away a bunch of colonies. [15:31:45] But a pretty amazing density of these corals.... [15:32:00] @Allen the size of colonies are small for me. [15:32:14] *looks small/young [15:32:20] Thank you. [15:32:32] Pretty significant current running across the surface of the wreck (note the waving colonies) possibly suggesting an environmental control on max. height. [15:32:38] @Askao: I agree the colonies are small and that is curious. But perhaps that is species specific growth rate issue...? [15:32:44] heatherjudkins leaves the room [15:33:02] stephaniefarrington leaves the room [15:33:39] @Scott indeed, butwe can't see any larger colonies yet. [15:33:43] Another remarkable thing to my eye is that it is - at least for the octocorals (ignoring the hydroids) - a monospecific recruitment event. [15:34:02] but I don't know what is the largest size of this species actually [15:34:07] Note that when we've tried to keep Plexaurids live in laboratory cold rooms, one of the hardest variables (and often the one that results in mortality) to control for is current. [15:34:29] @Steve: interesting! [15:34:54] @Steve: I wonder if the issue there is carrying away waste products... [15:35:43] Its warmer down there then it is in may office. How cold do Plexaurids usually like it? [15:35:46] @Scott I think it must have something to do with particle capture efficiency or what you mentioned. Its hard to recreate mother nature... [15:36:20] I think corals do not attach like this on "newly painted surface" [15:36:55] @Nolan Plexaurids we've tried to maintain (Paramuricea, Muriceides, among others) prefer temps between 7-12C, depending on depth. Quite similar to Lophelia's preferred temps. [15:36:59] The question is whether a cloud of larvae passed over here, or a few lucky early ones that found a completely open and available hard substrate for their babies. [15:38:09] @Steve Well thats quite a bit cooler then here. Maybe these would be easier to keep (temp wise) assuming you could fix the "current" issue. [15:38:45] This scene reminds me a bit of some of the high-current swept carbonate banks in the Caribbean where there is low substrate rugosity and often stubby colonies. [15:38:53] @noran its depends on species! Plexaurids are wide range family including tropical reef to Sea of Okhotsk [15:40:17] @Asako Wow! Thats a great range. [15:40:24] johnreed leaves the room [15:41:05] fishing line? [15:41:25] hay@vims.edu = Nematocarcinus? [15:41:46] sorry shrimp = Nematocarcinus [15:41:52] Pink fish... [15:42:16] KevinRademacher leaves the room [15:42:30] Thanks for clarification Mike. [15:42:46] = threadleg shrimp [15:44:09] people fishing for wreckfish [15:46:12] bilge keel not kill [15:48:45] stephaniefarrington leaves the room [15:49:15] monetmurphy leaves the room [15:59:00] andreaquattrini leaves the room [15:59:01] nolanbarrett leaves the room [16:10:50] Corals don't seem to do so well on these smaller pieces of debris, or else they are in a current shadow. [16:11:20] nolanbarrett leaves the room [16:17:53] emilycrum leaves the room [16:17:56] cristianacastellobranco leaves the room [16:18:23] Do you want the lasers off? [16:19:53] nolanbarrett leaves the room [16:20:41] Out of curiosity... Would ship like this sink at ≈10 m/min, or slower/faster? I'm curious about how long it would take to impact bottom at this depth. [16:20:50] philhartmeyer leaves the room [16:21:19] Good afternoon! Is that a Massive sponge? [16:22:18] probably rust @Mariadiaz\ [16:22:25] or is it a particular rust? [16:26:07] I wonder if that bacteria could be associated with hydrocarbon leakage...? [16:26:12] Berggiotoa [16:26:18] The fuel from the tanks... [16:26:24] Beggiotoa [16:26:29] chemosynthetic microbes feeding on leaking oil? [16:26:33] Good queestion, what is consuming? [16:27:34] Iron oxide? Reducing chemosynthetic bacteria. It should be covered by it. [16:28:05] Nine o clock there is a yellow sponge [16:28:19] that has several small crusts here [16:28:34] It could be a skeletaless verongiid. [16:29:13] Yes towards the left of the hole [16:29:25] Sorry I just got it, and I am chatty!!! [16:29:51] Please do Cris. No worries. [16:30:29] cristianacastellobranco leaves the room: Replaced by new connection [16:35:07] Cool!! Lots of these little white balls [16:35:27] Dont leave [16:35:40] stephaniefarrington leaves the room [16:35:41] there are several round sponges, light colred [16:35:51] They seem pedunculated [16:37:21] mariadiaz leaves the room [16:37:22] scottfrance leaves the room [16:37:22] christophermah leaves the room [16:37:30] upasanaganguly leaves the room [16:38:17] Big crustose bright yellow before [16:43:11] cristianacastellobranco leaves the room [16:43:54] Thick crustose yellow sponge. I believe it can be a Verongiid. For sure Demospongiae [16:44:17] Many patches. Can we get a close up? [16:44:33] I know we wont collect. It is just to see the surface [16:46:50] there was a sea star? [16:47:11] can we zoom on the star? [16:47:24] @Chris Yes, a very small white 7 rayed guy [16:49:08] Whenever you see the lighter large areas, Tan or bright yellow [16:49:09] Another star, goniasterid on the right [16:51:00] thanks! [16:51:15] And a second one on the far right of screen [16:51:37] Plinthaster or Peltaster.. [16:51:49] probably Plinthaster from the brief look [16:52:13] both species feed on sponges...so there is ample prey [16:52:31] I was just about to ask, thanks! [16:56:18] mariadiaz leaves the room [16:56:20] jonathanjackson leaves the room [16:57:52] emilycrum leaves the room [17:00:24] johnreed leaves the room [17:05:19] heatherjudkins leaves the room [17:06:51] christophermah leaves the room [17:08:53] cindyvandover leaves the room [17:11:21] johnreed leaves the room [17:16:06] NolanBarrett leaves the room [17:16:34] The lasers are definitely visible so in post-dive analysis of video the wdith of this structure could be calculated. [17:16:48] which side of the ship we are looking at now? [17:18:51] Ample sponge prey! This silent exploration makes me think on the historical significance of this dive!! [17:19:44] Asako, ROV traversed the starboard side up and back and then was peaking around to the port. [17:20:16] Thank you Allen! [17:23:09] johnreed leaves the room [17:23:45] The audio has been quiet for sure. It is a bit solemn. [17:24:15] NolanBarrett leaves the room [17:24:45] mariadiaz leaves the room [17:26:27] fish [17:27:41] This is how it feels: Solemn [17:27:51] emilycrum leaves the room [17:27:51] christophermah leaves the room [17:33:45] mariadiaz leaves the room [17:35:26] Maaybe piping covered by a sponge [17:36:32] If it makes sense to answer and there's time, question from Facebook: How much of a force multiplier would the liquid cargo have been when hit with the explosion from the torpedoes? And explosive vapor present in the tanks? [17:43:12] I see white sponge or tunicate crustose [17:45:44] stephaniefarrington leaves the room [17:49:45] mariadiaz leaves the room [17:51:30] Has anyone tried to track down the crew to see if any remaining are still alive? [17:54:19] If we see another one of those 7 armed stars.. those might be relevant. Some Paulasterias live around seep environments.. this seems similar [17:54:30] assuming that's what it turns out to be. [17:54:43] stephaniefarrington leaves the room [17:54:59] For sure a sponge Verongiid [17:55:04] Spongosorites? Cristina? [17:55:36] Yes it could be either Vansoestia or an Hexadella [17:55:44] No Spongosorites [17:56:02] It is a thin sponge. [17:56:24] If it would be thick it would be Spongosorites and more mustard yellow [17:57:15] Chris Mah's comment on the possible Paulasterias is interesting in connection with the Beggiatoa mat we saw earlier. [17:58:09] yes... the Pacific one I think fed on bacterial film. [17:59:40] I will have to go find that pic from earlier.. I hope there's a close up. [18:01:31] cindyvandover leaves the room [18:01:40] Thanks Chris M. Just catching up that. We will search for one of those 7-armed stars [18:02:21] andrewobrien leaves the room [18:02:51] emilycrum leaves the room [18:03:19] heatherjudkins leaves the room [18:03:21] johnreed leaves the room [18:03:49] mariadiaz leaves the room [18:05:22] thanks Allen! [18:11:20] are they hydroids? [18:14:08] Asako I am still wrestling with scale and so the polyps seemed large, but I think we could see either solitary or stoloniferous hydroids with large polyps. Pretty speculative though. [18:17:40] christophermah leaves the room [18:18:55] There is definitively a texture, that looks ot me like one of those thin crustose, smooth skletaless Verongiid genera: Vansoestia or Hexadella. They llok a lot alike [18:18:57] Allen, thank you for your explanation! very interesting. I'm glad I could awake til now and see them! [18:22:32] andreaquattrini leaves the room [18:23:41] @Allen The U66 was sunk by a hunter killer group formed aroudn the USS Block Island https://en.wikipedia.org/wiki/German_submarine_U-66_(1940) [18:24:11] johnreed leaves the room [18:25:51] emilycrum leaves the room [18:26:21] allencollins leaves the room [18:32:29] mariadiaz leaves the room [18:35:55] myctophid closeup photobomb [18:38:26] heatherjudkins leaves the room [18:38:56] emilycrum leaves the room [18:39:26] johnreed leaves the room [18:39:26] christophermah leaves the room [18:47:00] @Allen The 7 arm star seen earlier was really tiny and white. [18:47:22] wow [18:47:29] Thank you Nolan. [18:47:37] wreckfish photobomb [18:48:36] I'll send you and Chris M the screen shot of it. [18:50:15] thanks! [18:50:27] @Nolan to Allen.Collins@noaa.gov. Thanks [18:52:17] @Chris and @ Allen Sent. [18:54:04] The photo was taken on the left of where the large round yellow spot on the haul that was left of the hole with the first wood planks we saw inside it. [18:55:16] Thanks for that. Not sure which way that is from here @Nolan. We are making our way toward the rer of ship. [18:55:32] emilycrum leaves the room [18:55:58] got it. thanks... 6 rayed then. I hope we can find it again! [18:57:29] @Allen You are going in the correct direction based on the earlier video footage. [18:58:02] Looking for that distinctive shaped hole [18:58:08] @Chris I miss counted, oops. I'm reviewing undergrad science awards and my brain is tired... [18:59:53] no worries. just making sure. [19:00:42] Yes! Those holes at the bottom right of screen! [19:01:12] johnreed leaves the room [19:01:12] kimberlygalvez leaves the room [19:03:31] Wait. Did we miss them? [19:04:21] NOLAN! thanks! [19:05:58] *laugh* now I can't unsee it! [19:06:49] All that work and it's missing an arm. [19:07:21] calling [19:09:07] fish makes me laugh... [19:09:17] andrewobrien leaves the room [19:10:57] cutthroat eel (synaphobranchid) [19:13:27] johnreed leaves the room [19:13:28] christophermah leaves the room [19:16:05] KevinRademacher leaves the room: Replaced by new connection [19:16:35] mariadiaz leaves the room [19:16:39] emilycrum leaves the room [19:30:23] christophermah leaves the room [19:32:20] These look lie Epigonidae, deepsea cardinalfish [19:33:51] emilycrum leaves the room [19:34:59] Thanks Kevin [19:36:48] thanks all, been an interesting dive. gotta go to meeting. cheers [19:37:07] Bye George [19:37:50] georgematsumoto leaves the room [19:45:04] allencollins leaves the room [19:45:26] NolanBarrett leaves the room [19:48:52] I can only hear Stephanie's voice. [19:49:27] back [19:54:39] ]starfish? [19:54:53] Looked like goniasterid [19:54:55] okay no worries. [19:57:09] Cool! [19:57:13] If we pan down to the right of the current position we could view that goniasterid sea star [19:57:49] now we know that pyrosomes inhabit shipwrecks. [19:57:54] Cool! [19:58:29] thank you everyone! [19:58:33] Thank you all for a great dive! [19:58:56] it was nice dive! Thank you all! [19:59:26] NolanBarrett leaves the room [20:00:26] asakomatsumoto leaves the room [20:01:56] christophermah leaves the room [20:01:56] KevinRademacher leaves the room [20:03:29] allencollins leaves the room [20:30:28] michaelvecchione leaves the room [20:42:32] stevenauscavitch leaves the room [21:02:15] scottfrance leaves the room [21:17:04] christarabenold leaves the room [21:51:44] stephaniefarrington leaves the room [22:01:24] chat-admin leaves the room [23:47:14] okexnav leaves the room