[01:26:36] laurenjackson leaves the room [02:26:25] amybowman leaves the room [12:21:07] Hope those surface currents are tame out there... [12:24:06] scottfrance leaves the room [12:24:32] EX1803_DIVE12 ROV powered off [12:30:10] iscwatch2 leaves the room: Replaced by new connection [13:01:27] chat-admin leaves the room [13:01:53] EX1803 DIVE13 Test message [13:09:25] EX1803_DIVE13 ROV Launch [13:17:04] EX1803_DIVE13 ROV on Surface [13:17:37] EX1803_DIVE13 ROV Descending [13:18:29] scottharris leaves the room [13:21:01] Pre-Dive call at 8:30 CDT [13:22:57] test [13:40:12] Have I missed the pre-dive call (again)? [13:41:18] The dive call will resume at 9:30 AM CDT [13:41:33] Copy that. [13:41:44] Hanging up. [14:02:30] adamskarke leaves the room [14:27:41] adamskarke leaves the room [14:31:37] adamskarke leaves the room [14:37:16] Interaction going on now. We will begin the call shortly. [14:40:18] adamskarke leaves the room [14:40:34] Thx for update. [14:43:39] 20m off seafloor [14:44:53] EX1803_DIVE13 ROV on Bottom [14:52:08] Fantastic to see that the ROV and OkEx team has been able to get us to the bottom in this challenging region of the Gulf! [14:53:15] Beautiful map. [14:53:54] Please post link to Sea Scribe...lost it! [14:54:51] Bathypterois phenax [14:55:49] https://divelog.oceannetworks.ca/Dive?diveId=874 [14:57:04] @Scott Thanks [15:04:33] adamskarke leaves the room [15:08:07] adamskarke leaves the room [15:08:32] . [15:10:45] nolanbarrett leaves the room [15:11:07] Could this be an egg case on the old sponge stalk? [15:11:41] The texture reminds me of some of the dumbo octopus egg cases we have seen on other corals. [15:11:59] Seemed pretty large though. [15:12:06] I think it is way too big to be a cirrrate egg. [15:12:15] Exposed hard substrate! [15:14:09] I sure like what I am seeing here... [15:14:37] Colony is telling us the current is moving from right to left... [15:16:02] jonathanjackson leaves the room [15:24:28] @Dan-Can you spell the name of the coral we are going to collect please [15:24:38] Thanks for suggesting that collection Dan [15:24:46] Keratoisis [15:24:53] I'd call this one Keratoisis for now. [15:25:23] thanks! [15:25:29] adamskarke leaves the room [15:25:32] It is remarkable how much in gross appearance it looks like an Isidella, but close view of the branching and of the polyps shows that it is not an Isidella. [15:25:42] So much to learn! [15:26:58] Based on the animal guide, the giant sponge may be Treatopleura from the family Uncinateridae OR Chonelasmatinae n. genus from the family Euritidae. [15:28:06] Chris Kelley and Joana Xavier would be so excited to see this sponge [15:28:27] Chris gets excited about every sponge he sees! Even his bath sponges. [15:29:26] Bwahaha! [15:32:06] I've just looked through my database at the bamboo corals we collected in the Bahamas region (n=35) and none look like this one. The closest is a Jasonisis fan, but it branched at the nodes. So this could be something novel. I'm thrilled about the collection - thanks. [15:34:25] There is also the not insignificant detail that we were not about to sample this deep in the Bahamas! [15:35:07] *sorry - not able to sample this deep... [15:40:28] Fish are sooo disrespectful... [15:40:51] ha! [15:47:50] Bathysaurus mollis [15:48:02] can you zoom on the head of that cusk eel again? [15:50:28] Stable isotopes indicate Bathysaurus has very high trophic level. (Tracey told me that some time ago). [15:51:20] You could mention the reflection in the eyes. Tapetum doubles the sensitivity to very low light. [15:53:32] I think a hyalonema sponge [15:59:20] michaelvecchione leaves the room [16:00:15] Thought perhaps I saw some anastomsing branches on that Bathypathes [16:01:27] Goniasterid [16:01:51] Details too unclear to go much farther then that [16:02:39] adamskarke leaves the room [16:05:48] bryozoans! [16:07:05] andreaquattrini leaves the room [16:09:04] That looked like the carbonate had fractured, tumbled over, dooming the coral that was on it. [16:10:22] adamskarke leaves the room [16:12:53] My take on that was the Paramuricea had settled on a dead skeleton and grown, not that the larger skeleton was the same Paramuricea. If it was, then it would be impressively large. [16:15:10] That last bubblegum could also have been a Sibogagorgia [16:15:28] I'm not certain how to distinguish them in situ [16:15:55] So much for the thorns/spines of the black coral as protection! [16:18:06] meganmcculler leaves the room [16:20:27] Chrysogorgia [16:21:50] adamskarke leaves the room [16:22:47] That Chrysogorgia had polyps packed with gametes [16:24:08] At a convenient time, can you get a close-up of the polyps on the bamboo coral whips? [16:25:16] kevinrademacher leaves the room [16:25:52] Also a Schizopathes in the background [16:27:09] Which one is Schizopathes? [16:27:12] thomasritter leaves the room [16:27:17] @Dan- what do you want me to call this sample? [16:27:29] Telopathes [16:28:00] thanks [16:28:18] The Telopathes I am used to seeing have fleshier polyps. But perhaps that says something about local food availability, because the branching pattern of this one is consistent with Telopathes. [16:32:46] nolanbarrett leaves the room [16:33:09] adamskarke leaves the room [16:36:03] @Dan: I meant Stichopathes! [16:36:13] Wire coral, not Schizopathes [16:40:08] Keratoisis? [16:43:45] adamskarke leaves the room [16:43:48] Corallium behind? [16:46:13] jonathanjackson leaves the room [16:47:53] Nice mini-ecosystem there [16:53:04] Definitely a Stauropathes [16:53:22] can we zoom on the bryos? [16:53:35] or have we done that already? I've been watching off and on [16:53:52] (and don't have sound on right now) [16:55:09] adamskarke leaves the room [16:55:29] jonathanjackson leaves the room [16:56:24] zoom on stalked crinoid on rock corner? [16:57:19] I think the barnacle is Arcoscalpellum. [16:58:05] is the light purple coral different? [16:58:16] Purple paramuricea? [16:58:26] @Andrea: I was wondering the same... [16:58:36] Purplish anthothelid? [16:58:38] laurenjackson leaves the room [16:58:46] can we get a closer look? its not familiar to me. [16:58:54] I thought I saw a small Paragorgia recruit on that skeleton as well. [16:59:35] I still think it is an overgowth (the purple) [16:59:44] *overgrowth [16:59:55] MIght be the bathycrinid Monachocrinus caribbeus (known from just a few poorly preserved specimens) or new. [17:00:12] adamskarke leaves the room [17:00:39] nolanbarrett leaves the room: Replaced by new connection [17:02:08] What's the brown fuzz on the thick branches to the right? [17:03:35] Hydroid? Amphipod tubes? [17:06:29] Baton rouge... [17:06:38] exactly [17:07:33] rachelbassett leaves the room [17:10:14] Nicely said Adam [17:14:12] If at all convenient, could you please try to collect one of the white, 10-armed stalked crinoids attached to hard substrate. If it is Monachocrinus, it will be a depth record. The previous max. depth is 1857 m. The few museum specimens are in poor condition. (It might alternatively be a new species.) [17:14:28] michaelvecchione leaves the room [17:14:47] copy that chuck [17:14:55] @daniel - thanks. [17:15:28] Hello all [17:20:23] Hi Asako [17:22:10] nolanbarrett leaves the room [17:24:47] That must be the slope contour line... [17:24:54] ;-) [17:25:10] The mapping team put it there this morning [17:25:23] That Mike is always going above and beyond... [17:25:53] Can't stop that guy [17:26:05] Don't want to! [17:28:58] meganmcculler leaves the room [17:30:38] Tumbled, half buried Hyalonema [17:33:09] At least in the North Atlantic, some colonies of Protoptilum grow in this question mark fashion. [17:35:00] Beer bottle? [17:40:56] hi everybody [17:41:35] HI Tina [17:42:02] Hi Tina [17:48:57] Hi Tina [17:51:50] charlesmessing leaves the room [17:57:52] it really looks gracious [17:58:38] zoom at fork? [18:01:50] no alive sponges sofar? [18:02:18] @tina, yes we have seen some [18:02:28] as well as many corals [18:04:59] bamboo? [18:09:51] Hi everyone, I'll be able to join you for some hours. I saw on twitter that you've come across some nice sponges already [18:14:24] if anyone has taken some pictures/screenshots of the sponges observed so far and wants to send them to my e-mail I'll have a look and try to ID them [18:14:46] it's joanarxavier@gmail.com [18:18:08] adamskarke leaves the room [18:19:19] @Joana I took lots of screen shots so I can send some to you. I also forwarded some on to Dr. Chris Kelley and Meagan Putts at UH. [18:20:55] @nolan excellent! thanks [18:23:26] joanaxavier leaves the room [18:25:32] @Joana Yep, you're welcome. I'll wait until the end of the dive to send them all to you at once, if thats alright. [18:27:12] I am about to start a live interaction with futire oceanographers from Garrison Elementary School in Washington D.C. As they ask me questions the live stream should also be playing in their classroom, so they may react to what we see. [18:27:38] copy that scott [18:27:49] this starts at 1345 CT? [18:31:38] notes on fish species ID: most recently imaged small gray ophidiod hovering at an angle, head very symmetrical, no prominent spines, small eye = Barathrodemus manatinus; halosaur images a few minutes ago = Aldrovandia affinis. This is a mature male denoted by enlarged black nostrils, and black pigment on top of head - occluding the pineal window that is otherwise transparent. Dirty whitish pigment on body separates this species from A. gracilis, both equally likely to be encountered in GOM at this depth. Enlarged nostrils in such a male suggest use in detecting pheromone potentially released by mature female. [18:32:00] adamskarke leaves the room [18:32:11] joanaxavier leaves the room [18:32:56] Doing it now. [18:33:03] thanks Ken! I had not seen that cusk-eel before here in the [18:33:22] Gulf of Mexico, so really appreciate the IDs [18:38:08] Life history note on Bathysaurus mollis, imaged earlier in dive: A well-adapted sit and wait ambush predator - mainly piscivorous. Dorsally directed eyes are yellowish, designed to select for blue wavelength light - the dominant type of bioluminscence produced by midwater fishes visiting the bottom zone. Each pectoral fin has 3-4 elongated rays free distally, curving up into the water column, sensitive detectors of nearby vibrations of likely prey. [18:41:04] and octopus, we had octopus saturday... [18:42:04] joanaxavier leaves the room [18:42:23] it's a Pheronema [18:42:32] ? [18:43:19] actually you may be right Dan [18:43:37] but it's very unusual that it's missing the stalk [18:44:10] It may just be me, but my feed keeps going black or freezing [18:45:14] really intriguing... [18:46:12] joanaxavier leaves the room [18:47:10] Every time I do an interaction with such little kids (these were kindergartners) I am amazed at the energy teachers must have to keep up with them! [18:48:08] Echinothuridae? [18:48:25] joanaxavier leaves the room [18:48:58] Stennis is having issues connecting to SeaScribe [18:49:06] This is the one with the snowshoes... [18:49:18] Xenophyophores [18:49:29] @scott, how many kids you have there? I mean number? [18:51:14] Commensalism Between Juvenile Cusk Eels and Pancake Urchins on Western North Atlantic Seamounts: http://www.bioone.org/doi/abs/10.3374/014.050.0205 [18:51:18] Stennis back on [18:51:40] @Tina: I was in a Google hangout with about 20 or so kids, but sounded like about 200. [18:52:23] joanaxavier leaves the room [18:53:57] yay midwater! [18:54:05] yea... I have nephew and niece about this age and sometimes ... it sounds sometimes as a dozen... [18:54:29] Beaked whale foraging areas inferred by gouges in the seafloor: https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2009.00325.x [18:54:55] @scott and tina ...that's about right, I have two and sometimes I feel like a classroom has invaded the living room :D [18:55:29] For those experiencing issues with the video feed, we have confirmed feeds coming off the ship are good. [18:56:05] I have not had any issues since we reached bottom, except for some minor pixelation. [18:56:47] it was OK here for last two hours since I joined [18:57:13] adamskarke leaves the room [18:58:06] Sonars do not look promising for imminent hard bottom... [18:59:41] Agreed [19:01:03] We may have caught a lucky break with the exposures we saw downslope. [19:04:33] It sees that the current here is not keeping the ridge top clear. [19:04:52] seems [19:05:31] looks like goniasterid for me... [19:06:13] @Tina I agree [19:06:32] stevenauscavitch leaves the room [19:07:31] Bathypterois murrayi [19:08:50] Ipnops murrayi [19:08:57] Ipnops? [19:10:40] Yep: Ipnops murrayi [19:12:00] Bathypterois [19:12:04] joanaxavier leaves the room [19:13:08] Bathypterois grallator [19:13:17] it really hold place with fins... [19:14:34] Might be worth noting thr Okeanos Explorer is a dry ship! You are not to blame! ;-) [19:14:46] would be easier if the animals also had a label on them [19:14:56] Maybe these are scars of drunk, teenage beaked whales... [19:15:03] convergent evolution between stalked inverts and bottom perching tripodfish: elevate the feeding end of the organism above the bottom friction low-velocity layer to get into the zone where suspended plankton arrives at a higher rate [19:15:22] They've lost their beak-eye coordination and keep missing the squid. [19:15:39] jillbourque leaves the room [19:16:04] Get off my lawn! [19:17:02] that's excellent, Dan! [19:18:20] move the sediment and find out [19:18:29] gently [19:18:39] may be try to collect it? [19:18:50] it is rather small [19:18:54] can you collect? [19:19:00] or zoom in at the base? [19:19:03] and it would solve the mistery [19:19:12] meganmcculler leaves the room [19:19:54] that would be brilliant [19:19:57] it IS in fact rather common here so it is better to know what is it. It may be known species, but known from fragments only [19:20:15] Lay your wagers. Obviously I'm betting on stalk below the "head" [19:20:38] @Dan what would you like to call this sponge ? [19:20:50] because I also don't see any "rooting" spicules, which would be typical of Pheronema [19:20:51] We will try to pluck from below the sediment assuming a stalk [19:20:54] "Bob"? [19:21:25] @scott, you spent too much time with elemenary school)))) [19:21:31] lol [19:21:37] @Scott- I like that! [19:21:39] @Scott I also expect that stalk is buried try collecting [19:21:41] square stalk? [19:21:49] .. but it IS a bit square... [19:21:52] I'll dig into the historical literature first thing in the morning [19:22:04] (my morning I mean) [19:22:11] I was about to type "No, fibrous stalk" and then I got it... [19:23:07] stalk vs no stalk bets are on [19:23:45] I trust these pilots, they are fantastic with collections [19:23:56] We are so lucky to have such skill! [19:24:01] aka as the missing head mystery... [19:24:08] if stalked.. stalk may be > 0.5 meters [19:24:15] @nolan, we all trust pilots, but do not make them nervous) [19:25:31] "Plinge" claw into seds at base of sponge... [19:25:36] traceysutton leaves the room [19:25:37] *"Plunge" [19:25:53] Perhaps "insert" better than plunge [19:26:01] hhhmmm, really difficult to say... but I think there will be no stalk [19:26:36] huge stalk [19:29:28] Do halosaurs detect sunlight at 2000 m depth? Seasonal occlusion of the pineal window to the brain in mature males suggests just that. Light decreases logarithmically with depth as per 0,035 extinction coefficient for clear seawater. So, one Einstein of light at sea surface = 4 x 10 to the -31 Einsteins at 2000m. Like the human eye detecting 1-2 photons from a star millions of lightyears distant. [19:29:46] no stalk [19:29:58] Evidently no stalk... interesting. [19:30:20] but also not a basal tuft apparently [19:30:32] Someone (Joan?) remind me of the two basic types of sponge attachment that Chris always referred to... [19:30:42] Basiphytous? [19:31:00] we'll have to look at the base [19:31:27] Lots of opportunity to photograph the base on deck. [19:33:09] joanaxavier leaves the room [19:35:16] robertcarney leaves the room [19:35:49] EX1803 DIVE13 SPEC03 BIO [19:35:58] 2127 m [19:36:22] Thank you pilots [19:37:02] thanks pilots!!! this is briallinat [19:37:06] Nice job by pilots to check out the stalk. Thanks for putting up with sci requests [19:38:12] @scott yes lophophytous (with anchoring spicules) vs basiphytous (with a basal plate) [19:41:55] joanaxavier leaves the room [19:42:01] Thanks Joan [19:42:20] So I suspect that was lobophytous, with short spicules... [19:42:57] Okay, time to find the spectaculr pinnacle of rock with the awesome community on it that we won't have time to study... [19:44:26] joanaxavier leaves the room [19:47:23] If these are beaked whale gouges, where are all the squid that they would be chasing...? [19:47:50] in their bellies... [19:48:22] haha [19:48:40] Squid were smart enough to get out of Dodge. [19:51:23] joanaxavier leaves the room [19:52:58] joanaxavier leaves the room [19:53:30] Ready for midwater [19:55:27] nolanbarrett leaves the room [19:58:47] so no more bottom time? [19:59:03] thank you all, chat again tomorrow [19:59:07] yes, joanna. sorry. [19:59:25] caitlinruby leaves the room [19:59:26] thanks for the collection of that exciting sponge [19:59:41] joanaxavier leaves the room [20:00:14] adamskarke leaves the room [20:00:29] @scott, you know.. may be these gouges are from December... when we had massive squid-fall... [20:01:25] EX1803_DIVE13 ROV Ascending [20:03:20] kensulak leaves the room [20:03:44] Start Transect 10m off bottom [20:05:20] Will try to do some seascribing.... [20:05:33] Cool, I can assist too [20:05:55] or is it better for one to do it? [20:06:03] awesome [20:06:56] andreaquattrini leaves the room [20:06:57] It doesn't hurt to have more than one entering things in at all... better chances we get it correct :) [20:07:09] ok! [20:08:02] mikeford leaves the room [20:08:39] hello allen [20:09:12] jonathanjackson leaves the room [20:10:45] Mike F- got off teleconference- only 460 aas TIm is mentioning.... [20:11:05] great. [20:11:09] tinamolodtsova leaves the room [20:11:43] ROV can move faster if possible [20:13:12] crossata perhaps? [20:13:17] crossota [20:14:27] Yeah my video is about a minute behind... odd... [20:14:39] Rebecca agrees Crossota. [20:15:07] woohoo. great [20:15:23] wasn't sure because I couldn't see gonads [20:17:23] joshuacarlson leaves the room [20:17:37] Now we're talking! [20:18:24] Aulacoctena [20:18:42] really? even cooler. [20:19:52] Yes. I've seen it twice. Not very common. [20:19:59] End Transect 10m off bottom [20:20:04] awesome [20:20:41] up to 900 [20:22:19] right...thin to no DSL [20:22:32] Seascribe isn't agreeing with me today for some reason- super slow. [20:23:08] hmmm. slow here too. [20:24:29] Mark B - Do you think that was Aulacoctena acuminata, then?? [20:26:15] adamskarke leaves the room [20:26:43] Mike, I'm not really sure about the species. It's not clear how many species are actually in the gulf [20:27:02] Whoever spotted that tiny thing has eagle eyes! [20:27:34] We did the same last time- went into the current [20:27:54] very cool, Mark. Wish we could collect. [20:29:18] Agreed [20:33:20] adamskarke leaves the room [20:34:30] midwater team email has best link for SeaScribe [20:36:37] Others reported Seascribe being slow or temporarily offline this morning. [20:37:40] Mark B - have you conducted ROV operations in the midewater in this area? [20:39:24] No, I've never worked this far west. [20:39:40] allencollins leaves the room [20:40:17] Interesting area. [20:41:56] Pigpen [20:42:06] this is why we can't have nice things... [20:43:02] Documentation of a large sediment plume in the lower mesopelagic region of the western Gulf of Mexico. [20:43:47] Hi all - able to slip in for about an hour. assume still setting up for midwater? [20:44:06] I have to slip out for about an hour. [20:45:00] markbenfield leaves the room [20:45:02] Tracey- did the 10m from bottom, on way to 900 now. Should be there in 12 min'ish [20:45:07] Cool. Thanks, Mark We are at about 1500 m heading to 900m then we will do 4 transects 15 min each [20:45:45] see fish? I assume so since I wasn't watching... [20:46:07] no fish yet. [20:46:15] lucky [20:46:30] allencollins leaves the room [20:47:00] Nick - I have an email for you to read [20:47:15] adamskarke leaves the room [20:51:56] adamskarke leaves the room [20:52:12] michaelvecchione leaves the room [20:57:32] adamskarke leaves the room [21:00:14] Sternoptyx... [21:00:33] shrimp looked like Sergia [21:01:48] jimmasterson leaves the room [21:08:29] sergestid shrimp [21:08:51] allencollins leaves the room [21:09:18] Start Transect at 900m [21:09:54] missed it - looked like a large myctophid [21:10:03] asakomatsumoto leaves the room [21:10:12] Cyclothone [21:10:36] shrimp [21:10:40] Sergia [21:10:49] fish- [21:11:33] nice - deep-sea smelt, Dolicholagus longirostrius [21:11:59] that fish is a jelly-eater [21:12:04] Siphonore- pysonect [21:13:18] first I have seen in situ... [21:14:12] Pysonect siphonophore [21:15:06] Shrimp [21:15:10] we have found the Sergia layer... [21:16:45] Chetognath [21:17:06] Chaetognath [21:18:12] I think so - whizzed by pretty fast... "If in doubt, Cyclothone :-)" [21:18:42] yeah. [21:18:53] that was not Cyclothone... [21:18:57] End Transect at 900m [21:19:34] that's a big calanoid! [21:19:49] Begin ascent to 700 m [21:19:54] huge! [21:19:56] For 900 m, that was a great transect - lots of life. [21:21:00] SeaScribe stuck on this end - will need to post-dive annotate [21:21:05] in case you are wondering, we covered a linear distance of 60 m during the 900 m transects [21:21:08] there are things zooming by as we ascend..... [21:21:18] shrimp [21:21:25] chaetognath [21:21:48] jelly? [21:21:52] We may have seen an animal per mete, which is fairly dense... [21:22:13] i think that is about right [21:22:38] fish [21:23:08] siphonophore [21:23:13] siph - Agalma perhaps [21:23:31] big Cyclthone -probably C. pallida [21:24:39] 850 m and ascending [21:24:56] shrimp [21:25:16] Coelodendrid phaeodarian [21:25:36] Seascribe via that divelog website is down for me, just fyi... [21:25:45] me too [21:26:24] Lobate ctenophore [21:26:35] chaetognath [21:27:45] adamskarke leaves the room [21:28:14] heatherjudkins leaves the room [21:34:33] Cyclothone... [21:35:12] I truly hate to, but have to leave in 6 minutes. So... you will see a ginat dragonfish eating a ginat squid in 8 minutes. [21:35:23] giant.. [21:35:53] We will miss you~~ excited about the GS though :) Will get you the screen grabs :) [21:36:23] What depth is that next layer located at? I can't really tell from the EK. When the mouse was over it, it appeared to be about 760 m? [21:36:34] It should be at 700m [21:37:00] Thanks Heather [21:37:02] Was happy to see that bathylagid. Lots of fish here. If I could cancel my faculty dinner, I would... [21:37:39] big squid, I think [21:38:07] A long-armed squid, maybe? [21:38:09] Not sure what's on feed 2 replay..... Thought squid at first but the top view looked off... [21:38:25] Maybe a physonect siphonophore. [21:38:30] Would love a close up. [21:38:38] Yes, hard to tell. [21:38:48] not a fish... [21:38:55] What was the black spot on "top" [21:39:18] those look like fins moving on foot [21:39:44] 21:34:34 for image on Seirios [21:39:58] do squid wear knit caps? [21:40:01] possible squid, physomect, hard to tell. will lok again [21:40:04] Mike V. may be abnle to clear it up if it's a squid- would have loved a close up.... [21:40:10] The reddish black color is unusual for a siphonophore. There's an undescribed cydippid ctenophore with fairly thick white tentacles and an elongated red body. What depth was it at? [21:40:22] I haven't seen a squid in a knit hat, but it is pretty chilly down there.... [21:40:39] depth was around 700m [21:40:46] Start of Transect 700m [21:40:51] Prob too shallow for that ctenophore [21:40:57] chaetognath [21:41:01] I think technically it would be a squid tail warmer, not a cap... [21:41:02] Great eye, crew. [21:41:17] larvacean [21:41:26] Thanks all - wll catch up later. Have a great dive (sniffle) [21:41:46] Thanks Tracey. [21:41:54] seascribe working [21:41:54] traceysutton leaves the room [21:42:01] Tracy - if you have the sniffles perhaps you should be wearing a knit cap. [21:42:12] Jellyfiah [21:42:18] 0.5 knot current from SE-NW [21:42:24] Larvacean house. [21:42:30] sp- jellyfish; [21:42:44] Benthocodon or colobonema [21:42:53] I only caught it for a second [21:43:00] Pentochogon? Went by fast. [21:43:02] aiph [21:43:10] siph [21:43:13] It's too shallow for Benthocodon. Tentacles ahort for Colobonema [21:43:39] Apolemia perhaps [21:44:18] Larvacean ouse [21:44:29] fish [21:44:39] fish [21:44:44] SNot [21:44:51] allencollins leaves the room [21:45:03] myctophid [21:45:07] juvenile myctophid? Tracey did say we'd see all of the fish now... [21:45:09] Was that a snail fish? Forget the formal name. [21:45:20] shrimp [21:45:30] i think myctophid [21:45:35] Not sure but nice camera work! [21:45:39] Mark B - medusa perhaps Bythotiara [21:46:08] Jellyfish [21:46:31] Possibly [21:47:01] chaetognath [21:47:08] Chaetognath [21:47:44] Larvacean house [21:48:22] hatchetfish [21:48:37] I think.... [21:49:04] chaetognath [21:49:29] Yes [21:49:57] salp? [21:49:59] salp [21:50:02] salp [21:50:03] muscle bands [21:50:05] salp [21:50:45] siphonophore [21:51:27] very cool [21:51:43] wicked! [21:52:15] Great. The bubble in the pneumatophore is carbon monoxide, which is an unusual gas to find in a marine organism. [21:52:29] end 700 m transect [21:52:51] begin ascent to 500 m [21:56:41] Good point. [21:58:21] Folks might be interested in the tools used to study zooplankton. Cameras, nets, and acoustics are all complimentary. Nets give us a physical sample, we can do DNA and morphology, look at gut contents, get size, weight. Acoustics provide a context for directing nets and cameras. Cameras give behavior, help with gelatinous animals. [21:59:04] No single tool gives the complete picture. [21:59:22] Very nice point. [22:00:21] siph [22:01:39] heatherjudkins leaves the room [22:02:11] larvacean [22:03:09] @markbanford: Not common, but potential future direction for zooplankton sampling is autonomous underwater vehicles: https://www.whoi.edu/news-release/plankzooka [22:03:57] That's very cool! [22:04:15] siph [22:07:05] sorry, @markbenfield [22:07:39] fish [22:08:47] snot [22:09:04] phaeodarian [22:09:27] ctenophore [22:09:37] solmissus [22:10:22] fish [22:11:07] siph [22:12:00] fish [22:12:22] chaetognath [22:12:53] Fish [22:13:03] Cyclothone I think [22:13:09] Start 500m Transect [22:13:32] yeah - I got that one right [22:13:39] shrimp [22:14:15] euphausiid? [22:14:26] I think so.... [22:14:29] prayid [22:14:58] Long antennae/eye stalks. [22:15:17] on the shrimp. [22:15:25] yes prayid [22:16:27] shrimp - long and articulated antennae [22:16:34] shrimp [22:17:45] chaetognath [22:17:58] marine snow [22:18:06] fish [22:18:42] larvacean house [22:19:09] fish [22:19:49] siph on right [22:20:08] fish [22:20:15] fish [22:20:24] there are lots of organisms at this layer.... [22:21:01] fish [22:21:18] what species of fish? [22:21:29] cyclothone I think- the light one....? [22:21:36] yeah [22:22:11] hmm. dorsal fins may be too tall... [22:22:15] yeah but I had my hopes up when it sat so still [22:22:35] thomasritter leaves the room [22:23:03] If you guess a midwater fish is Cyclothone, you have a better than even chance of being correct :) [22:23:36] good that's all I have when if comes to fish. cyclothone and the hatchet fish. [22:23:58] ctenophore [22:24:01] Ctenophore [22:25:08] arctopodema [22:25:54] pyrosome [22:26:32] Pyrosoma atlanticum [22:26:56] Name means fiery body. They are important foods for Leatherback sea turtles [22:27:07] Lobate ctenophore [22:27:17] bathocyroe [22:28:01] end 500 m transect [22:28:02] end 500m transect [22:28:20] deep slope bottomfishes in hawaii eat lots of pyrosomes too [22:28:31] begin ascent to 300 m [22:28:35] arctopodema [22:28:51] I didn't see a red gut on it so maybe a small Thalassocalyce? [22:29:41] don - do you see lots of those in your trawls? - pyrosome? [22:30:07] Watchstander leaving watch [22:30:12] mark b - i think the smaller ones and stages are making it tough to deal with lobates right now, eh? [22:30:14] yes [22:30:18] We do- we've been collecting them from the DEEPEND cruises.... [22:30:28] pyrosoma atlanticum? [22:30:31] robust enough to get sampled well compared to other jellies [22:30:44] phaeodarian [22:32:09] hatchetfish [22:32:54] do you - Don and Heather have DNA for your samples? [22:33:02] chaetognath [22:33:48] Hmm, good question- we don't have anyone working them up formally to my knowledge- we will be back out in july if you need/want some tissue? [22:34:14] we usually freeze our jellies so yes. but many get incinerated by our physiologist lol who is interested in calories... [22:34:19] OK - I'll email you about it. Thanks. [22:35:01] adamskarke leaves the room [22:35:03] We preserve in formalin the jellies/pyrosomes. We can do something different if needed.... Tracey may know better than I if anyone is working them up. [22:36:03] afk for a few [22:36:51] scottfrance leaves the room [22:37:48] that's okay - i like the caloric data [22:40:18] fish [22:40:28] ctenophore [22:42:37] jelly [22:44:39] fish... many [22:44:54] adamskarke leaves the room [22:46:16] phaeodarian [22:46:32] prayid [22:47:10] siph [22:47:42] siph [22:47:52] fish [22:48:44] prayid [22:52:00] start 300m [22:52:11] Start 300m [22:52:47] larvacean house [22:54:00] siphonphore interesting [22:54:20] Is it just a part of it? [22:55:08] hard to see the nectosome [22:56:17] lobate ctenophore [22:56:25] When there's some downtime, it might be interesting for some folks to hear that we're seeing the end of the ascent phase at this location of the largest animal migration on the planet. [22:56:35] lobate ctenophore [22:56:39] siph [22:56:50] phaeodarian [22:57:07] good point on the dvm... [22:57:27] copy that mark [22:57:36] siph [22:58:35] great siph [22:59:03] heatherjudkins leaves the room [22:59:40] Nice videography [22:59:53] ctenophore [23:00:10] lobate ctenophore [23:00:23] larvacean [23:00:36] Chaetognath [23:00:58] radiolarian [23:03:22] Is it possible to try for one of the smaller white spots that are moving horizontally? [23:03:42] okay [23:03:56] chaetognath [23:04:02] look diff than marine snow [23:04:12] Chaetognath [23:04:42] yup [23:05:01] there seem to be ones moving in a diff direction [23:05:16] yeah some are definitely actively moving [23:05:19] nolanbarrett leaves the room [23:05:25] I think they mayu be pteropods [23:05:37] not the snot [23:05:49] no, not the snot [23:05:54] radiolarian [23:06:03] was that a radiolarian off to upper right? [23:06:06] end 300 m transect [23:06:13] end 300m [23:06:23] Thank you [23:06:27] yes - radiolarian upper right [23:06:31] Thanks, everyone! Will there be any more midwaters this crurise? [23:06:45] Thanks all, nice work! [23:07:04] Thanks! [23:07:09] markbenfield leaves the room [23:07:58] I will move from ECC to other office to call in for post-dive [23:08:11] First time I've watched a midwater ROV survey while cooking spaghetti bolognese! [23:08:15] Thanks! [23:08:16] heatherjudkins leaves the room [23:08:25] lol [23:08:25] markbenfield leaves the room [23:08:33] that sounds good! [23:09:04] dive planning call 630 CT [23:09:05] donaldkobayashi leaves the room [23:10:15] mikeford leaves the room [23:10:28] adamskarke leaves the room [23:18:10] elizabethurbangedamke leaves the room [23:32:09] EX1803_DIVE13 ROV on Surface [23:33:11] dive planning call now [23:46:22] EX1803_DIVE13 ROV Recovery Complete