[00:38:08] kaseycantwell leaves the room [00:55:57] kaseycantwell leaves the room [11:00:32] Good morning all! We have completed the drift test and are planning for an ontime launch. [11:01:58] Wind and waves are good, but current is high (as expected). We will be closely monitoring it throughout the dive [11:11:15] talk to you all soon [11:11:35] once we get in the water we will immediately be on the teleconference line to talk about today' [11:11:45] s dive [11:32:17] EX1806 DIVE05 Test message [11:38:19] iscwatch leaves the room: Replaced by new connection [11:46:35] EX1806_DIVE05 ROV powered off [11:46:47] EX1806_DIVE05 ROV powered off [12:15:56] EX1806_DIVE05 ROV Launch [12:23:45] EX1806_DIVE05 ROV on Surface [12:28:55] EX1806_DIVE05 ROV Descending [12:50:22] okexnav leaves the room [12:51:39] okexnav is not currently updating ctd data... [12:51:58] I mean on the navdata screen [12:52:23] Good morning everyone! If you have questions for the science leads, can you please use @sci? This will help us find and answer your questions [12:53:13] @sci: what is the meaning of life? [12:53:24] That was just a test. ;-) [12:53:48] working on it. sorry for the delay [12:54:45] navdata is now flowing on navdata tab [12:54:58] @allParticipants: We are working on getting the nav data to update on the chat [12:56:09] I had asked about navdata (now available) because I'm wondering if we will be in a lower O2 zone today. [12:56:29] ...based on depth [12:56:38] It's working now I believe. [12:56:52] @Leslie: yes, it is. [12:59:54] Hi! :) [13:00:07] zachproux leaves the room [13:00:07] rachelbassett leaves the room [13:01:37] @Scott Harris - any insight as to the geology of this area? The mounds don't look like outcrops to me, even though some are aligned into wavy, low relief ridges. [13:02:21] Hi all - when you are chatting to the science leads, can you please use @watchleads or @Leslie or @Cheryl? It will help them flag which comments they need to respond to an which are general discussions for the team oin the chatroom. Thanks! [13:03:01] @scott- the meaning of life MAY be found by exploring the underwater world. The corals have the answer! :) [13:03:44] @sci: test result = successful! :-) [13:04:34] yes! [13:04:51] thanks Scott [13:04:57] Great! [13:05:12] @sci works too [13:05:24] any of those will flag for Leslie and Cheryl [13:05:39] Go ahead and us @sci if it's general. If you have a biology question or geology question, feel free to direct to either one of us. [13:05:52] "use", not "us" [13:12:06] @Leslie et al. When we were reviewing the multibeam, there was a clear morphologic continuum from a few isolated mounds, to a few lined-up mounds, to anastamosing agglomerations, to nearly complete coverage. Their orientation provides an interesting (potential) relationship to the long-term currents. The distribution, density, and organization of the individual mounds into these linear/anastamosing/fully covering may provide some information to the overall growth and colonization of the region (since the last glacial maximum?). Very much looking forward to seeing them in person! [13:17:35] kaseycantwell leaves the room: Replaced by new connection [13:18:00] Thanks ScottH. will use more of that once we see the mounds. Hopefully we can put the multibeam image up on Camera 2 or 3 at some point if there's a lull. [13:20:50] scottfrance leaves the room [13:23:52] danielwagner leaves the room [13:27:31] stephaniebush leaves the room [13:29:09] @sci-playing catch up, did you all run over this area with the subbottom? [13:29:26] scottfrance leaves the room [13:29:37] EX1806_DIVE05 ROV on Bottom [13:33:08] @amanda - we do not have a subbottom for this spot, but to the east we collected some in the adjacent area. Derek said there was a profile here previously. He's not on the chat room yet, though. [13:33:27] meganmcculler leaves the room [13:36:51] robertcarney leaves the room [13:40:24] @leslie-no worries, just wondering what the returns looked like (whether hard or with fuzzy tops, which can sometimes indicate coral mound areas) [13:41:47] SBP from EX1403 in the general area shows lots of mounts with somewhat fuzzy tops but poor overall penetration, separated at times by seafloor with relatively thick, layered sediments [13:42:16] @leslie--if you can find the tgfoe data location, I'll run the profile and get @amanda some information. [13:42:28] *mounds [13:42:55] @sharis - can't get to that right now, sorry. maybe Kasey can? [13:43:15] @kasey - see previous comments from scott harris [13:45:34] my feed isnt great, but that looks like Lophelia to me [13:45:44] yes erik, lophelia [13:45:52] @sci, I think I found them and am currently downloading. (about 10 min left on download). [13:47:40] iscwatch leaves the room: Replaced by new connection [13:50:14] Can we zoom in on the non-scleractinian corals when we get another chance? [13:50:36] Thanks! [13:50:48] these coralframeworks are usually very good at scattering sound. we got some very low reflectivity returns from large coral mounds on seismic data on the Gulf [13:51:29] if this is typical of all of the mounds in this area, this is one of the largest accumulations of coral framework in the world. dont wanna get too far ahead of ourselves tho :) [13:51:44] alcyonacea [13:52:03] Duva florida probably [13:52:18] zachproux leaves the room: Replaced by new connection [13:52:21] amphipod on the octocoral [13:52:28] @sandra, duva is pink? [13:52:51] Pink/brown/purple [13:53:03] my kids are enojying the feed too. Henry says "Hello" [13:53:14] thanks [13:53:29] Plumulariid hydroids to the right of the white sponge. [13:53:34] @erik, penetration and resolution are quite poor through these mounds, the hard stuff tends to scatter and absorb [13:53:45] @eric, "Hi' from me to Henry [13:53:51] Also, looked like a tiny feather star crinoid inside the sponge. [13:55:09] Hello all [13:55:33] @Nolan - what is your affiliation now (lab at MUSC)? [13:55:46] meganmcculler leaves the room [13:56:33] @christian Jones - good morning! What is your affiliation, please? We will introduce the chat room at some point. [13:56:49] Looks like Enallopsammia skeleton [13:56:55] it is not Dendrophelia? [13:57:04] Hello Asako [13:57:22] Hi Rachel! [13:58:04] @Leslie Morning, sorry I wasn't so active this weekend, I wish I could have been! Currently, I am a research assistant in a Natural Products Discovery lab in the Drug Discovery Dept. @ MUSC [13:58:33] @Tina, Looks similar but E. profunda is moderately common at these depths off the SEUS and Im not sure Dendrophylia has been recorded here. [13:58:58] Thanks, Nolan [13:59:11] Yes, I have not heard of a record of Dendrophyllia in this area [13:59:36] OK thanks Cheryl, I stand corrected :) [13:59:51] oops - misreaad....sorry. [13:59:58] @leslie Good morning. I am a Research Fisheries Biologist with NOAA Fisheries in Pascagoula, Mississippi. Looking out for chondrichthyans. [14:00:10] @Tina - where is the Shirshov Institute? [14:00:10] irissampaio leaves the room [14:00:56] @leslie, Moscow, Russia. [14:00:58] stephaniebush leaves the room [14:01:27] Extremely dense populations of agglutinating foraminiferans (Astrorhizacea) covering the dead coral branches. I have hypothesized that they may accelerate sediment deposition on these mounds. They collect fine sediment particles that might normally drift through the coral branches and then contribute the fine sediment to the seafloor when they die. [14:01:38] Thanks Tina! Great to have you on all these chats. [14:02:01] These forams are the little waving fuzzy "trees" on the dead branches. [14:02:29] upasanaganguly leaves the room [14:03:30] fish left [14:04:05] can we zoom on that coral in the center? [14:04:30] irissampaio leaves the room [14:04:34] Yay! Thanks. [14:04:56] So funny you ask. We're sitting here trying to decide [14:05:09] zachproux leaves the room: Replaced by new connection [14:05:10] paramuricid? actually we can have gorgonacea here as well [14:06:48] michaelvecchione leaves the room [14:06:58] eel [14:07:13] Perhaps a Eunicella? Similar (at least superficially) to species on the Miami Terrace. [14:07:36] bamboo finally [14:08:08] irissampaio leaves the room [14:08:32] @chuck was saying about previous close up [14:08:58] zachproux leaves the room: Replaced by new connection [14:09:34] this one definitely not Anthomastus, but may be retructed alcyonacean [14:09:48] Small feather stars bottom center and upper right. [14:10:01] meganmcculler leaves the room [14:10:39] alive cupcoral [14:12:24] Clumps of live E.profunda [14:14:19] In the close-up of E profunda, you can see the forams already growing on the white branches on the left. [14:14:34] can we move a bit left [14:14:48] Stylasterids [14:15:53] So, I wonder if the forams contribute to the retreat of coral tissue upward along the branches. [14:16:30] stephaniebush leaves the room [14:16:39] and a bit lower just of screen now [14:17:09] it wahydroid-like pennate colony [14:17:39] just below the .profunda [14:18:33] thanks [14:19:48] carolynruppel leaves the room [14:28:34] Synaphobranchid eel - common in Lp and Ep habitat [14:29:55] Eunicella is a good call [14:30:08] A sample would be great! [14:30:28] it is common species, we can take it [14:30:41] agree with collection! [14:30:50] I agree with Eunicella [14:32:34] IF you grab a bit of the coral rubble that the octocoral is attached to, you might get some of the agglutinating foram. I expect it might be undescribed. [14:33:06] another bamboo. Scott is not here? [14:37:02] Looks like a rossellid vase sponge in the distance [14:39:07] Great job! Thanksx [14:39:37] irissampaio leaves the room [14:41:29] Sure- a nice Eunicella collection plus coral rubble [14:42:57] Looks like Cavolinia [14:44:28] Possibly Cavolinia uncinata, but hard to tell without getting a closer look (and turning the shell over also) [14:45:59] @ChrisK What do you think these glass sponges might be? They remind me of Atlantisella but I'm not sure. [14:46:17] irissampaio leaves the room [14:46:17] robertcarney leaves the room [14:48:07] Nolan, ;yeah trying to figure them out also. Could be Atlantisella (a Euplectellidae) or a Rossellidae. They have a vase shape, sort of and Atlantisella has a vase shape that often is hard to recognize. Anyway, its a good working guess. [14:48:30] danielwagner leaves the room [14:50:13] At some point, it would be good to see how they are attached to the substrate. [14:50:24] @ChrisK Okay, thank you. While I was looking at the animal guide Atlantisella, the texture and pattern are different from the vases we are seeing today. [14:50:35] Good idea [14:51:50] laurenwalling leaves the room [14:55:05] @Tina: in and out this morning. Off to a thesis defense in a couple of minutes. [14:56:44] I am here. These are likely a type of Acanella. [14:56:58] although no doubt some would want to call them Isidella [14:57:16] On closer reflection...! [14:57:33] The branching looked to be just post node, and not at the node... [14:57:33] katerose leaves the room [14:57:55] so then not acanella or isidella, right? [14:58:09] So, I'm stumped for right now! lol [14:58:21] @Chris: the more I learn the less I ralize I know... [14:58:36] Sorry - have to run. Back in an hour. [14:58:47] irissampaio leaves the room: Replaced by new connection [14:58:50] Best guess as I leave is one of the B clade Keratoisis [14:59:06] Bye! [14:59:42] scottfrance leaves the room [14:59:52] No idea about the sponge. Possibly a demosponge behind the bamboo [15:00:29] primnoid [15:00:43] Yes, we agree [15:01:01] Collection? common? [15:01:11] Not sure which genus though [15:01:18] Hi all. According with Manfred Grasshoff: t is branched, -- so it si not a Lepidisis (unbranched "whips"); it is branched in the nodes, so it is not a Keratoisis (br in the internodes); it is branched not in whorls, -- so it is not an Acanella; it is branched dichotomously, -- so it is an Isidella [15:02:18] danielwagner leaves the room [15:02:19] I would say Keratoisis if we consider this key [15:02:32] The primnoid is reminiscient of several species in the genus Narella, golden axis is a giveaway from Cairns & Bayer 2003. [15:02:53] irissampaio leaves the room [15:03:55] What is going on with that sponge?? Is it growing on something or is it a branching demosponge? [15:04:54] I don't know. It looked sort of like a stalked sponge? [15:04:55] irissampaio leaves the room [15:05:37] @Chris - the little branched sponges are very common on low relief coral habitats in the SEUS and GOM. We call them lollipop sponges but do you have a taxonomic name for them? [15:06:41] Aphrocallistes sponge? They are often packed with yellow zonathids [15:06:59] Sorry Sandra. Again, another stumper sponge. Boy, I need to bone up on Atlantic sponges but hexacts don't branch like that to my knowledge. So its probably a demosponge. [15:07:39] Yeas could be but we don't have that genus out here so I am not familiar with it Sandra. [15:07:46] They aren't branched per se - each has its own stalk. [15:07:53] I am not sure if the little abundant feather star is a described species or not. [15:08:01] Stylocordyla spp. [15:08:05] In the GoM expeditions, Joana Xavier ID'd an interesting branching hexactinellid. I'm trying to find the name [15:08:27] plexaurid? [15:09:02] Ophiuroid nursery or are these mature individuals? [15:09:12] No its a mollusk that feeds on corals [15:09:25] could be but I have no idea... [15:09:29] Aplacophoran [15:09:44] solenogastre? [15:09:52] Is this not a aplacophoran [15:10:03] apacophoran mollusc [15:10:04] irissampaio leaves the room [15:10:18] Its Epimenia sp or something like it. [15:10:25] No I said it's that... I was asking [15:11:54] zachproux leaves the room: Replaced by new connection [15:12:10] "A" meaning without and "placo" meaning plate/shell. [15:12:47] brachyuran crab of some sort [15:13:03] Zachproux leaves the room: Replaced by new connection [15:13:04] irissampaio leaves the room [15:14:33] and it needs to stay closed! [15:14:52] write your local fishery management council! [15:15:50] charlesmessing leaves the room [15:16:27] Is this a Lophelia mound with most of the coral dead or is it some other scleractinian? It doesnt look like Enallosammia to me [15:17:39] Was that a Geodia sp (demosponge)? [15:17:53] @Sci et al. Would love to see a core through the mound...history of mound growth and coral history and all. [15:18:08] Looks mixed, which isn't uncommon at these depths. A lot of the Ep mounds we have found are predominantly stainding dead [15:18:24] @ChrisK I believe we have seen both. Also, the other day Shirley got really excited about seeing many Geodia of a variety of morphs. [15:20:33] Yes, looks like Geodia [15:24:03] Thank you [15:24:18] Hi everyone- I'm at the University of South Florida St. Petersburg and study cephalopods with Mike V. I am usually on during the midwater dives. [15:24:52] michaelvecchione leaves the room [15:26:26] soft coral, isnt it? [15:26:53] yes it is soft coral. [15:26:54] irissampaio leaves the room [15:28:22] Hi @Heather. [15:28:32] Lymonema (codling) [15:28:48] Thanks, Heather! Welcome! [15:28:57] @ChrisK Rossellid vases, do you think? [15:29:13] beautiful species. Our Laemonema out here is not as handsome [15:29:23] This codling is one of the commonest fish species on the Miami Terrace to the south. [15:29:55] I think so Nolan but didnt get a good look, was typing. [15:30:10] I think the small orange solitary corals may be Bathypsammia. [15:30:48] irissampaio leaves the room [15:31:20] @ChrisK No worries. Would you like me to send you screen shots like I did for last exped? [15:32:13] Please do. Sorry I havent gotten back about the other images you've sent but will shortly [15:32:51] Gotta get ready for work. Have a great rest of the dive. [15:32:58] christopherkelley leaves the room [15:33:09] Zachproux leaves the room: Replaced by new connection [15:34:40] Thanks for joining us Chris! [15:34:51] @sci Is there any way we could get a sample of the octocoral that we initially thought might be a bamboo coral? It looks like there are several. [15:36:35] Sure Rachel- let us know when you see the next one and we'll see whether we can take a sample [15:36:47] Great! Will do. [15:37:20] @Taylor - hello! What is your affiliation, please? [15:37:27] irissampaio leaves the room [15:39:16] Areosoma - - note poison sacs on end of spines [15:40:11] Yep - Echinothuridae. One of the pancake urchins with a poorly calcified test that collapses out of water. [15:40:23] irissampaio leaves the room [15:41:45] Kirill Minin said Sperosoma [15:42:02] and Alexander Mironov agreees [15:43:35] some Plumarella fans in there [15:43:45] Hello Leslie, I work in the Biology Department with Tim Shank at WHOI. Nice to be here with you! [15:43:53] @sci One of those corals to the left [15:43:57] michaelvecchione leaves the room [15:44:34] @sci for collection. the white ones [15:44:57] not that one. [15:45:12] the one we're looking at now? [15:45:25] the one behind it to the left [15:45:41] Nevermind [15:45:55] Stylasterid?? [15:45:55] irissampaio leaves the room [15:47:43] @sci @geo @Leslie, it is nice to see the sediment accumulating downdrift as expected, with the corals creating the baffle to help the mounds build. [15:49:10] irissampaio leaves the room [15:49:54] Both of those sponges a few minutes ago looked like Geodia demosponges, but different spp. [15:50:47] I would like to have it but I guess it would be complicate to send it to Europe [15:51:26] similar to Thesea talismani, a plexaurid from NW coast of Africa [15:51:43] meganmcculler leaves the room [15:54:43] franktamara leaves the room [15:55:14] irissampaio leaves the room [15:55:48] @Iris Once in the repositories, the samples should be accessible to just about anyone. The geological samples get sent to Oregon State University and the Biological samples get sent to the either the Smithsonian or the National Museum of Natural History (I think, but I can't remember which one). [15:56:24] Yes, SI NMNH. [15:56:36] @Iris I do not know more then that, but I am positive someone here on the chat could better inform you about requesting samples. [15:56:42] @Cheryl Thank you! [15:57:35] @Iris: once samples are deposited at the NMNH (Smithsonian) they are assigned collection numbers and can then be requested as with any loan from the museum. [15:58:16] Typ[ically an email would be sent out to all participating scientists informing them the samples are available for loan when they are ready. [15:58:20] asakomatsumoto leaves the room [15:58:25] @Scott Thank you for the explanation! [15:59:13] michaelvecchione leaves the room [16:03:57] @nolan @cheryl and @scott thanks for the information. It is really good to know they will be placed in the museum [16:05:40] irissampaio leaves the room [16:07:49] @Iris You're welcome! [16:08:30] michaelvecchione leaves the room [16:08:33] irissampaio leaves the room [16:09:12] @all more information about our sampling processes, a=how to request specimens etc can be found here: https://oceanexplorer.noaa.gov/okeanos/collaboration-tools/sampling.html [16:09:18] charlesmessing leaves the room [16:12:13] irissampaio leaves the room: Replaced by new connection [16:12:25] @kasey Thank you! [16:13:56] @all more information about our sampling processes, a=how to request specimens etc can be found here: https://oceanexplorer.noaa.gov/okeanos/collaboration-tools/sampling.html [16:14:57] @all more information about our sampling processes, a=how to request specimens etc can be found here: https://oceanexplorer.noaa.gov/okeanos/collaboration-tools/sampling.html [16:17:02] @all more information about our sampling processes, a=how to request specimens etc can be found here: https://oceanexplorer.noaa.gov/okeanos/collaboration-tools/sampling.html [16:19:03] Cidaris abyssicola? [16:21:26] Since returning from the thesis defense I've been looking in my database at bamboo coral samples that we have from this general area at this general depth (specifically from a 2010 cruise using ROV Jason II). From 632 and 687 m depth we collected a D-clade Keratoisis, but from 437 to 530 m depth we collected S clade Cladarisis. The couple of images I have immediately available (only deck images, not in situ) suggest the bamboo coral I have been seeing (almost nodal branching, branches sparse) is the Cladarisis type. But, I don't have the images of Keratoisis in front of me to be sure I can rule that out. [16:21:37] irissampaio leaves the room [16:24:09] Nice summary Cheryl. The thin branches of the colonies we are seeing also suggest Cladarisis. I'll try to learn a bit more before suggesting any potential collection. [16:24:55] irissampaio leaves the room [16:26:08] Roger that! Let us know if there is a collection that would help [16:26:49] This big one has to be a bamboo coral... [16:27:05] I'll bet this is the Keratoisis D-clade I was expecting... [16:27:58] asakomatsumoto leaves the room [16:29:19] leiopathes cf. glaberrima [16:29:28] Aw man, I miss Taco Tuesday on the ship... [16:29:59] @nolan, I miss taco all the time( [16:30:29] next leiopathes.. can we have scale for branchlet size [16:31:07] This is a big colony! [16:31:27] irissampaio leaves the room [16:31:28] Must have found a good stable spot as it is growing initially sideways... [16:31:43] ...and then curving more upwards [16:31:50] there are many of speculations about leiopathes. As far as I know there is no much genetic differences between different morphological forms were found so far [16:32:31] This should be internodal branching... [16:32:49] @Tina How interesting! [16:33:07] it is dive 5? [16:33:19] Yes dive 5 [16:33:28] thanks! [16:33:43] Yup, I'd say this is Keratoisis [16:33:59] The internodes are quite short... [16:34:27] ...i.e. relative to the thin branching bamboo coral we were seeing earlier, not here how many nodes you can easily see [16:34:53] scott, you would like it to be collected? [16:35:05] I mean that with respect to this species, not for Keratoisis as a whole [16:35:20] I want every coral collected! :-) But this is not a high priority. [16:35:34] So keep going for now. [16:35:49] How many collections have been made today? [16:36:01] bamboos are always priority))) [16:36:15] @Tina: for sure! [16:36:25] @Scott Only 1 collection so far [16:36:38] It was a Eunicella. [16:37:06] @Tina: I am trying to show my self-control. Earlier today at the thesis defense I sat right behind the donuts, but managed not to eat one. So my self-control is pretty strong today! :-) [16:37:11] irissampaio leaves the room [16:39:25] @scott- the force is strong with this one! [16:39:35] :) [16:39:55] rachelbassett leaves the room [16:40:03] I wish I could do the same when I am onboard [16:40:48] The longer we sit here and look at this coral, the harder it is to maintain that self-control! Just like the donuts. [16:40:59] Why do they tempt me so? [16:41:32] irissampaio leaves the room [16:43:30] stevenauscavitch leaves the room [16:44:44] irissampaio leaves the room [16:44:45] @sci: And I think we still have just over 3 hours of bottom time, right...? [16:45:28] self-control efficiency test [16:45:53] I think that urchin might be feeding on the lower branch of the coral... [16:46:09] @Iris: too true [16:46:21] Life is brutal! [16:46:37] Can anyone offer the state of the science about why such corals are so sparsely distributed, e.g., limited larval dispersal or settlement success; widespread mortality of smaller colonies? Anything else? [16:46:47] irissampaio leaves the room [16:46:55] calling in now, but I'll be too late [16:47:07] kaseycantwell leaves the room [16:49:45] echinothuriid I think since the spines are bending and are both numerous and thin [16:51:20] @Chuck: in this immediate area I'll bet that stability of the substrate on which they grow is a factor. [16:51:49] Euplectellidae glass sponge? [16:52:00] Regadrella sp for the sponge? [16:52:09] @Chris: Your wheelhouse [16:52:26] But I can certainly steer off course [16:52:53] @Scott - thanks. [16:53:15] irissampaio leaves the room [16:54:24] Leiopathes [16:54:55] @Chuck: but it is a great question that has so many variables to consider. [as I know you know!] [16:55:26] Is the white coral in background the Eunicella type you sampled earlier? [16:55:38] if we zoom under Leiopathes we can mesure the base [16:55:51] (was behind the Leiopathes) [16:56:56] Some type of demosponges on the bottom I guess [16:56:57] adriennecopeland leaves the room [16:58:16] @Scott - I have not kept up with the literature on the subject. [16:58:50] irissampaio leaves the room [16:58:58] Single polyp scleractinian at the base? [16:59:10] @Cheryl: you have as much self-control as me! :-) [16:59:22] @Chuck: what literature!? ;-) [16:59:32] Interesting little brown sponges... [17:00:13] @Scott I had a cookie at lunch. No constraint [17:01:04] @Cheryl: I think the donuts are still in the building, so I haven't survived those yet... [17:01:18] A lot of Leiopathes here. [17:01:46] If you see a large dead skeleton, it would be useful for ageing. [17:01:55] can we zoom? [17:02:23] it is OK depth for some Bathypathes, but pinnules are very small [17:02:49] Looks like a small Parantipathes at upper part of screen [17:03:04] I was looking at that also scott [17:03:10] and there is a black coral just at the top of screen now [17:03:18] Or some sort of small bottlebrush antipatharian [17:03:24] I would request zoom [17:03:47] @Scott, @Cheryl - thanks for those comments. [17:03:48] irissampaio leaves the room [17:04:06] and to Bathypathes as well [17:04:08] michaelvecchione leaves the room [17:04:24] Thanks for suggesting the comments Chuck. One of the many mysteries! [17:04:32] Zachproux leaves the room [17:06:19] Sorry, missed the audio from the dry lab - is this is bio or geo collection? [17:06:36] Geo collection [17:06:50] Good looking rock [17:06:59] Thanks! [17:07:04] Going into rock box [17:07:07] I'm recording in SeaScribe [17:07:15] But will surely have plenty of associates [17:07:15] irissampaio leaves the room [17:07:25] @Stephanie: excellent, thanks [17:08:13] Nice job, @Pilot and @Leslie [17:08:45] I knew you'd approve, Scott! I'll take lots of photos! [17:09:19] taylorheyl leaves the room [17:09:33] Heteropathes? [17:09:56] it is Heteropathes [17:10:38] can we zoom that small colony from the left? [17:11:20] this one is kind of Bathypathes, common in the area [17:11:35] sorry tina - the current is forcing us to move on. [17:11:50] Heteropathes was not reported from this area yet [17:12:49] I do not know the species of Heteropathes, quite possible new species [17:14:00] it is not H. americana for sure... [17:14:04] hi all -what has the bottom been like? coral or rock rubble? [17:14:10] I would support a collection of the next Heteropathes. [17:14:51] Hi Andrea, It has been a mix. Where we are now is less rubbly than where we have been [17:14:53] irissampaio leaves the room [17:15:11] More like what we're moving into. [17:15:25] thanks! [17:15:31] @Scott, when you will chose specimes for collection - it was upright with lateral innules almost perpendicular to the stem [17:15:41] pinnules [17:18:27] @Tina: roger. Colony with lateral pinnules almost perpendicular. [17:18:56] @Tina: in H. americana are the lateral pinnules projecting more forward? [17:18:56] christopherkelley leaves the room [17:19:00] nolanbarrett leaves the room [17:20:34] any fishes today? [17:21:16] Has anyone dated the piles of rubble and obtained some type of distribution of ages for the dead corals out here? [17:21:27] @Andrea: Lots of eels [17:21:30] irissampaio leaves the room [17:22:34] Looks like more living coral as you move upslope. [17:25:13] looks like live lophelia [17:25:27] Yellow feathery colony likely a hydroid [17:25:51] irissampaio leaves the room [17:26:38] @sci, maybe the rubble should be sampled in a couple of areas so that some kind of ages could be determined. The samples could just be piled on top of each other as you go, as the interesting part at this point in studies is "is there a similar age of dead corals or are they very different through the region of the dive?" Just a thought if there is time, or nearby dead pieces next to other samples. [17:28:59] @Sharris - we do have some rubble from the first mound. I will request a sediment sample to include rubble, but it has to go into a Bio box, we we'll wait til a little later, as we need the bio box for the coral specimens. You know it's foremost on my mind to get a sed sample. [17:30:09] Missed the small stalked crinoid. Agree with Scott F if it was extremely small. [17:33:14] Anthomastus [17:33:25] i am in favor of collecting soft corals whenever you can! [17:33:30] @Leslie, sounds good--I must have missed that first sample; I'm in the sed lab running sediment grainsize samples all day everyday. [17:33:39] I see a tiny likely stalked feather star postlarva bottom center below the Duva florida. [17:33:50] Andrea, we can ask for Anthomastus? [17:34:09] yes, anthomastus but any ?Duva, neptheids, etc. would be great [17:34:35] We just recovered several pieces along with the first bio sample. no sediment since it was a claw-collection [17:36:03] We've collected several Duva florida from this depth from Norfolk Canyon, but not sure about this far south. [17:36:39] irissampaio leaves the room [17:37:33] The ground cover of dead coral, yet to be rubble, is astounding on this mound. [17:38:31] @ScottF - sorry if you thought my comment was about the coral - it was for ScottH. I didn't use the "@". [17:39:16] It really is Tim! [17:39:24] @Leslie: no worries. So far I've been able to partion the SF vs SH comments! [17:40:05] Video: Can we get bathymetry radar view on Feed#3? [17:40:20] phakellia? [17:40:35] Post collection I mean sorry [17:41:36] Got it Ren- we will ask after the collection [17:41:46] @Ren - radar? not sure what you mean. We can post the bathymetry perhaps. We don't have a backscatter surface to show, unfortunately. [17:42:00] I assume you are picking up the rubble with the coral, and not trying to pluck off the coral... [17:43:30] AH! Another junk had Anthomastus (or Pseudoanthomastus) on it [17:43:45] That spider-webby mucous funnel at lower right is similar to those I've seen in just about everywhere I have observed deep-water hardground habitats, but I've never figured out what makes them. Polychaetes? Suggestions? [17:44:55] nolanbarrett leaves the room [17:45:50] @Chuck: I've wondered the same. Can toss in a mollusc as a possibility as well. [17:47:51] Psuedoanthomastus s.l., Andrea, it may be one, that Alvaro has sent to Cathy from Newfoundland [17:48:15] Those neptheids could also be Pseudodrifa cf nigra [17:49:02] @tina nice. its a great dataset you both have! [17:49:22] @sandra yes, i am not sure how well known these neptheids are…hence i think collections are warranted [17:49:47] irissampaio leaves the room [17:50:36] I don't know what preservatives you have on board, but when you preserve the rubble samples from today's dive, can you please pick off some of the little fuzzy tree forams and preserve them if possible for DNA, SEM and TEM (glutaraldehyde?). [17:51:08] You got it Chuck! [17:51:58] Actually, don't think we have gluteraldehyde, but ETOH and formatlin [17:52:50] @Cheryl - thanks. Now all we need is a benthic forams expert to carry the burden. [17:53:53] red and white stripes can be hold over of camophlage from shallow water ancestors or even from smaller ontogenetic forms of the individual [17:54:00] Any sponge experts in the chatroom? Is this abundant little tan round demosponge worth collecting? [17:54:57] irissampaio leaves the room [17:55:01] They often live on white and grey sediment or white and black sediment - helps them blend into the background, like zebra stripes. [17:55:46] @Ren - we can't get the bathy right now, but they are working on it. [17:56:10] Cladorhizidae [17:58:20] this is odd Lp growth - looks like fairly recent colonization of large standing dead colonies. Would be interesting to do the genetics on them to see. [17:58:56] irissampaio leaves the room [17:59:11] The shark that swam past appeared to be a species of Squalus [18:04:27] this white coral looks like recently dead Madrepora [18:05:31] Another small stalked feather star postlarva at bottom of field of view. [18:05:54] santiagoherrera leaves the room [18:06:16] upasanaganguly leaves the room [18:06:49] upasanaganguly leaves the room [18:07:57] nice Pseudoanthomastus [18:08:12] Nice healthy Ep mixed with Lp. [18:08:44] Can we have few more shots of Pseudoanthomastus? [18:08:58] Funny how Ep and Lp keep mixing and/or trading off [18:09:11] if there are some big colonies? [18:09:33] @Tina: how do you distinguish Pseudoanthomastus and Anthomastus in situ? [18:10:08] I was going to ask the same question @Scott [18:10:16] We'll get some more zooms when we find more Pseudoanthomastus. Can you tell us the difference between Pseudo and anthomastus? [18:10:51] irissampaio leaves the room [18:11:27] @scott, generally Pseudoanthomastus has bigger and fewer siphonozoids and separated stalk... and also - they tend to lacerate. [18:11:42] @scott this looks just like the earlier eunicella [18:12:00] opaque whit tissue with somewhat more translucent polyps [18:12:12] white* [18:12:21] @Zach: thanks. That is what I was wondering. [18:13:07] @scott, for some reason - they cluster genetically, but some closer, other distant. Pseudoanthomastus sl is very large group, may be more than one genus [18:13:37] @cheryl - yes, a feather star. The common species here is very small; not sure if it is described or not. [18:13:44] @Tina: what do you mean "separated stalk"? [18:13:58] very small Muusoctopus [18:14:00] franktamara leaves the room [18:14:13] and I agree with Zach about Eunicella, but not yet branched. it is hard to tell sticks apart of forks when they are not forked yet [18:14:43] @Mike, why it call Muus-octopus [18:14:58] Muusoctopus? [18:15:10] what is Muus? [18:15:25] @Tina: because its hair was muusy...? [18:15:45] I blame Chris K for such bad puns. [18:16:52] @scott, you can see difference between stalk and capitulum [18:17:56] plexaurid? [18:18:06] in the center [18:18:28] Just looked it up: named after "Bent Muus, the reviser of genus Bathypolypus" [18:19:20] Named after Bent Muus, a scandanavian cephalopod expert. [18:19:53]