[00:20:06] okexnav leaves the room [00:23:37] johndeitz leaves the room [01:09:38] okexnav leaves the room [11:43:09] EX2104_DIVE02 ROV powered off [11:47:16] testing [11:51:42] DIVE02 test message from the Okeanos Explorer [12:12:46] iscwatch leaves the room: Replaced by new connection [12:15:39] jasonchaytor leaves the room [12:18:20] EX2104_DIVE02 ROV Launch [12:22:54] pierrejosso leaves the room [12:25:42] EX2104_DIVE02 ROV on Surface [12:27:21] EX2104_DIVE02 ROV Descending [12:27:47] LAT : 32.922838 , LON : -54.913791 , DEPTH : 21.8224 m, TEMP : 26.67353 C, SAL : 36.98488 PSU, DO : 5.97998 mg/l [12:30:52] jasonchaytor leaves the room [12:32:47] LAT : 32.924024 , LON : -54.913762 , DEPTH : 54.01 m, TEMP : 22.34077 C, SAL : 36.85039 PSU, DO : 6.70233 mg/l [12:37:48] LAT : 32.926067 , LON : -54.914097 , DEPTH : 198.4269 m, TEMP : 19.18049 C, SAL : 36.64482 PSU, DO : 6.21331 mg/l [12:41:18] iscevents leaves the room [12:42:48] LAT : 32.927153 , LON : -54.913745 , DEPTH : 365.8486 m, TEMP : 18.4236 C, SAL : 36.56805 PSU, DO : 5.53374 mg/l [12:45:22] jasonchaytor leaves the room [12:47:49] LAT : 32.927279 , LON : -54.913819 , DEPTH : 502.1555 m, TEMP : 16.85486 C, SAL : 36.34773 PSU, DO : 4.98555 mg/l [12:52:50] LAT : 32.927025 , LON : -54.913845 , DEPTH : 650.4192 m, TEMP : 14.64915 C, SAL : 35.99674 PSU, DO : 4.87281 mg/l [12:55:55] pierrejosso leaves the room [12:57:50] LAT : 32.926687 , LON : -54.913728 , DEPTH : 812.9741 m, TEMP : 10.40635 C, SAL : 35.93667 PSU, DO : 4.30905 mg/l [13:02:51] LAT : 32.926358 , LON : -54.91366 , DEPTH : 968.1316 m, TEMP : 8.21678 C, SAL : 35.22362 PSU, DO : 4.84621 mg/l [13:07:51] LAT : 32.926049 , LON : -54.91369 , DEPTH : 1121.9522 m, TEMP : 6.4638 C, SAL : 35.14878 PSU, DO : 6.02015 mg/l [13:12:51] LAT : 32.925714 , LON : -54.913695 , DEPTH : 1265.8062 m, TEMP : 5.46785 C, SAL : 35.08599 PSU, DO : 6.73296 mg/l [13:17:52] LAT : 32.925367 , LON : -54.913593 , DEPTH : 1415.0476 m, TEMP : 5.02623 C, SAL : 35.07086 PSU, DO : 7.06024 mg/l [13:22:52] LAT : 32.924953 , LON : -54.913646 , DEPTH : 1570.577 m, TEMP : 4.71705 C, SAL : 35.07279 PSU, DO : 7.15962 mg/l [13:26:58] that dive track on the ridge looks pretty good [13:27:53] LAT : 32.924661 , LON : -54.913642 , DEPTH : 1721.577 m, TEMP : 4.44472 C, SAL : 35.05014 PSU, DO : 7.26531 mg/l [13:32:54] LAT : 32.924249 , LON : -54.913622 , DEPTH : 1873.5676 m, TEMP : 4.05948 C, SAL : 35.06505 PSU, DO : 7.40138 mg/l [13:34:39] jasonchaytor leaves the room [13:37:54] LAT : 32.923885 , LON : -54.913683 , DEPTH : 2031.6434 m, TEMP : 3.82656 C, SAL : 34.99483 PSU, DO : 7.46005 mg/l [13:38:58] pierrejosso leaves the room [13:40:08] leswatling leaves the room [13:42:55] LAT : 32.923473 , LON : -54.913586 , DEPTH : 2186.2613 m, TEMP : 3.64438 C, SAL : 34.99839 PSU, DO : 7.45576 mg/l [13:46:29] haroldcarlson leaves the room [13:47:56] LAT : 32.923193 , LON : -54.913748 , DEPTH : 2340.4955 m, TEMP : 3.47719 C, SAL : 34.97888 PSU, DO : 7.4175 mg/l [13:49:40] cindyvandover leaves the room: Replaced by new connection [13:52:56] LAT : 32.922885 , LON : -54.91385 , DEPTH : 2499.383 m, TEMP : 3.34452 C, SAL : 34.97646 PSU, DO : 7.33035 mg/l [13:57:56] LAT : 32.922821 , LON : -54.913797 , DEPTH : 2647.3453 m, TEMP : 3.2114 C, SAL : 34.96468 PSU, DO : 7.32512 mg/l [14:01:53] Note FYI that planning map is still up on Camera 3 [14:02:20] They're just working on it now - trying a new configuration for the multi-screen so people can see the map [14:02:53] Thanks. I use the quad map to help interpret our position relative to bottom during descent. [14:02:57] LAT : 32.922737 , LON : -54.913717 , DEPTH : 2802.5991 m, TEMP : 3.09127 C, SAL : 34.95722 PSU, DO : 7.37461 mg/l [14:03:03] *quad screen [14:04:38] 5 minutes until on bottom - quad screen will be back after the pre-dive call. [14:04:45] cindyvandover leaves the room [14:04:48] Some changes were made based on feedback from Dive 1 [14:05:40] Forgot about pre-dive call aspect. [14:06:48] bottom in sight [14:07:14] Rock with thin sediment cover [14:07:15] bramleymurton leaves the room [14:07:58] LAT : 32.922234 , LON : -54.913984 , DEPTH : 2814.3555 m, TEMP : 3.03358 C, SAL : 34.95332 PSU, DO : 7.0478 mg/l [14:08:06] With coral... [14:08:20] woo hoo! [14:08:32] Looks rugged. [14:09:08] not much in the way of benthopelagic macroplankton. Guess the benthos is eating smaller stuff.. [14:09:18] EX2104_DIVE02 ROV on Bottom [14:12:59] LAT : 32.922218 , LON : -54.913988 , DEPTH : 2816.3407 m, TEMP : 3.04273 C, SAL : 34.94552 PSU, DO : 6.61936 mg/l [14:13:43] Dhugal Lindsay from JAMSTEC, Japan to look at jellyfish [14:14:36] Bramley Murton, National OCeanographyy Centre, UK, geology and volcanology [14:15:38] more "twigs" on the bottom [14:15:42] anyone know a name for that anemone? [14:16:09] I can't recall the name but have seen something like it often. [14:16:24] Corallimorph or anemone? [14:16:33] bramleymurton leaves the room [14:16:37] Bulbs on the tentacles? [14:17:29] Some good looking rubble, hopefully there are a few loose angular rocks [14:17:31] squid! [14:17:39] are the naked coral bits from disturbance by the ophs? [14:17:46] I went with anemone because the texture of the tissue looked "too tough" (for lack of a better word) for a corallimorph. But they are hard to distinguish at this level. [14:17:50] Oegopsid [14:17:59] LAT : 32.922198 , LON : -54.913947 , DEPTH : 2812.5454 m, TEMP : 3.03486 C, SAL : 34.94886 PSU, DO : 6.45463 mg/l [14:18:39] @Cindy: the ophs are typically not feeding on the coral (to our understanding anyway) but rather take advantage of cleared skeleton. It is possible their spines may be abrading the tissue. [14:19:04] @Scott - thanks [14:19:49] The anemone was similar to this actinostolid: https://www.ncei.noaa.gov/waf/okeanos-animal-guide/Actinostoloidea003.html [14:20:07] very nice MB mapping :-) [14:20:55] a lot of old coral bases with thin FeMn coating like on the previous dive [14:21:36] bramleymurton leaves the room [14:21:45] zoanthids? [14:21:58] and hydrozoan polyps [14:22:43] squat lobster [14:23:00] LAT : 32.922308 , LON : -54.914066 , DEPTH : 2812.6633 m, TEMP : 3.03721 C, SAL : 34.94493 PSU, DO : 6.33274 mg/l [14:23:02] what attached to tip? [14:23:36] barnacle? [14:24:55] sponge? [14:25:05] yes, sponge! [14:25:20] @Dhugal: sorry, missed yuour comment so not sure what you were referring to in real time. But I did see barnacles on the bamboo coral. [14:25:49] the outcrop here looks like a lot of breccia -possible mass-wasted and transported down slope? [14:25:58] no worries mate [14:27:02] bramleymurton leaves the room [14:28:00] LAT : 32.922089 , LON : -54.913842 , DEPTH : 2815.6025 m, TEMP : 3.04184 C, SAL : 34.94427 PSU, DO : 6.23865 mg/l [14:28:35] Hey guys has your live stream dropped out? [14:28:49] No, I'm still getting the feed. [14:29:07] i'll refresh [14:29:08] Can we do a squeeze test? When you just squeeze the rock with the claw. If it breaks easily than it's likely pure crust [14:29:25] Nevermind, [14:29:26] That is no rock! ;-) [14:30:01] can we check the piece 30 cm to the right of the lasers? [14:30:11] try the angular piace 45cm to the left - [14:31:04] √ [14:31:11] perfect! yes [14:32:27] haroldcarlson leaves the room [14:32:51] is the crust weathering to make it delicate? Or was the soft piece not really crust? I'm not understanding the geological process for softening. [14:33:01] LAT : 32.922136 , LON : -54.914014 , DEPTH : 2815.5656 m, TEMP : 3.0549 C, SAL : 34.93315 PSU, DO : 6.15138 mg/l [14:33:03] bramleymurton leaves the room [14:33:18] Good morning Rhian! Looks like another beautiful day on the mountan. [14:33:30] LIkely a hyaloclastite (pillow basalt) that was hydrously altered during eruption, then the cracks infill with secondary materials and it becomes fragile [14:33:33] That is a nice looking rock. [14:33:38] In response to cindy [14:33:47] nice rock - basalt prob [14:34:06] complete with arborescent forams [14:34:22] @kevin, thanks! esp. for defining hyaloclastite for a biologist :) [14:34:41] hydroids on rock? [14:35:33] @harold, looked like it [14:35:37] kensulak leaves the room [14:35:38] bramleymurton leaves the room [14:36:36] M Vecchione on email says the squid earlier may have been a juvenile giant squid! [14:36:47] !!! [14:37:40] I can tell my kids I saw the smallest giant squid ever! [14:38:02] LAT : 32.922136 , LON : -54.91402 , DEPTH : 2810.6198 m, TEMP : 3.04368 C, SAL : 34.94474 PSU, DO : 6.3711 mg/l [14:38:05] "may" have seen..... [14:38:25] no way! [14:38:49] really long mantle wasn't it [14:39:11] Anything that is very angular is likely a hard basalt [14:42:07] barnacle? [14:42:32] good eyes to see zooanthids from bamboo. I need to get more calibrated to this cnidarian stuff. [14:43:02] LAT : 32.922119 , LON : -54.914046 , DEPTH : 2806.847 m, TEMP : 3.03642 C, SAL : 34.93921 PSU, DO : 6.44424 mg/l [14:43:04] quite specific usually [14:43:45] @Cindy, there are a lot of zoanthids out here, and they grow on a lot of the calcareous substrate [14:44:23] I think these have reached old age [14:44:39] kensulak leaves the room [14:45:05] there is a lot of secondary calcification so they are probably pretty old [14:45:55] if you see a branch with normal polyps, zoanthids and hydroids on the same stalk it would be good to get [14:45:57] possible pycnogonid predation too [14:47:06] maybe ophs don't kill the coral, but prevent colonization by recruits of zoanthids etc? [14:47:16] barnacle! [14:47:17] and a barnacle! [14:47:23] Hi folks, this part of the seamount seems to be partially within a gully (from the mapping) and has a lot of broken rocks (what we call breccia) and may indicate land-sliding and instability with rocks falling down this gully and may damage the coral. [14:47:40] @Cindy, quite possible [14:47:49] haroldcarlson leaves the room [14:48:03] LAT : 32.92213 , LON : -54.91404 , DEPTH : 2806.8296 m, TEMP : 3.05032 C, SAL : 34.92777 PSU, DO : 6.23478 mg/l [14:48:10] pierrejosso leaves the room [14:48:40] what is the plankton in the middle? [14:48:43] we often don't think of things just dying of old age, but it may be more common than not... especially since there are not very many predators at these depths [14:48:46] bramleymurton leaves the room [14:48:49] pink/orange guy [14:49:29] maybe amphipod... [14:49:33] from MV: "Full disclosure, every time I thought I had a juvenile Archi it turned out to be a neoteuthid (also cool but not as big a deal). I need to watch the fins on video." [14:49:44] I realize we haven't gone very far, but so fra the bamboo corals are ruling the Congress. [14:49:45] heatherjudkins leaves the room [14:50:27] @Scott, that's a pretty liberal interpreatation [14:50:42] zoanthids everywhere! [14:51:34] I reckon the zoanthids have trumped the bamboo corals ;-) [14:51:41] glass sponge looks like a 4-leaf clover [14:52:01] @Scott, i was wondering how long until the "political" jokes... you're the first... [14:52:05] Synaphobranchid [14:52:13] @Les: you can rely on me! [14:52:23] are those photophores laterally? [14:52:27] I ponder the idea of brittle stars 'protecting' its chosen coral. Very often the brittle star seems to either choose to occupy a bare section of the coral, or has itself consumed or worn away the polyps and coenosarc. Coul [14:52:34] That sponge may have been a "front" view of something like this euplectellid: https://www.ncei.noaa.gov/waf/okeanos-animal-guide/EuplectellidaeOther007.html [14:53:04] LAT : 32.922221 , LON : -54.914127 , DEPTH : 2803.8782 m, TEMP : 3.03832 C, SAL : 34.93962 PSU, DO : 6.31823 mg/l [14:53:29] @Ken: I'm thinking of the brittle stars on Paramuricea, Paragorgia, and Metallogorgia as examples of mutualists. In those cases they do not abrade the tissue. [14:53:45] A synaphobrancid - but not genus Synaphobranchus. Prominent lateral line pores indicate Ilyophis, also head shape confirms that. The other diving into the rock crevice may be genus Synaphobranchus [14:55:01] yellow guy on left [14:55:49] Ilyophis has a 'puffy' head, often with a prominent 'bump' dorsally. does not have the curved 'smiley' mouth of synaphobranchus [14:55:52] heatherjudkins leaves the room [14:56:41] Thanks Ken! [14:56:43] two zoanthid species? [14:56:48] what are the small (few mm long) worm-like things attached to the rocks in abundance? [14:57:11] I think it was one on top of a bamboo potentially - the other brief view we had seemed corally.. [14:57:13] @Dhugal: that is my thought. [14:57:16] The white projections on the head of Ilyophis are the anterior tubular nostrils, more prominent during breeding season [14:57:36] leswatling leaves the room [14:57:43] and hydroids also [14:58:05] LAT : 32.922091 , LON : -54.914129 , DEPTH : 2802.569 m, TEMP : 3.03408 C, SAL : 34.94257 PSU, DO : 6.29099 mg/l [14:58:08] how many sample tubes do we have? [14:58:29] any barnacles as well? [14:58:37] bramleymurton leaves the room [14:58:40] we have 4 boxes dedicated to biological sampling [14:58:41] Don't see any [14:59:01] tentacle structures of the white and yellow zoanthids look very different [14:59:17] yes very interesting to see two different species together [14:59:21] almost never the case [14:59:22] Very - warty skin and smooth skin as well [14:59:47] Jamie Reimer would love that sample [15:00:14] hi here [15:00:17] pity no bamboo polyps left [15:00:30] FYI, Kim, you are not aubible on the phone. [15:00:40] *audible [15:00:53] Hi Tina. Was wondering when you would join ;-) [15:00:56] really? [15:00:57] scott - are the numerous bumps on the zooanthus stalks calcareous?? [15:01:10] I can hear shore-based folks on the line, but didn't hear Kim there. [15:01:26] hmmm I'll check on that [15:01:29] And someone is not muted on shore. [15:01:35] Rhian also not on the phone. [15:01:42] Were you disconnected? [15:02:16] They don't make the calcium carbonate themselves, correct? But they would incorporate particles they stole [15:02:18] beautiful brisingid seastar [15:02:39] I will also note that when Jason and I are talking, we are not being broadcast on the video. [15:03:02] I can hear both you and Jason and Kim on the broadcast, Scott [15:03:06] LAT : 32.922169 , LON : -54.914099 , DEPTH : 2801.5427 m, TEMP : 3.03849 C, SAL : 34.94086 PSU, DO : 6.25759 mg/l [15:03:07] there have been intermittant network issues [15:03:21] Ah, okay thanks Kira. I'll be more careful there. [15:03:34] not coming through the conference line I guess [15:03:43] agree, I can hear both Scott and Jason [15:03:49] i imagine that seastar is pretty close to neutrally buoyant, so it's size relative to the substratum may not be so surprising? [15:03:53] Hi Scott, yes. It seems the telecon line dropped out, but we are still on the live feed. We're working on it on our end. [15:04:44] Yeah Cindy, and it was not using too many tube feet to hang on [15:04:49] haroldcarlson leaves the room [15:04:58] seems like dead [15:05:00] So perhaps people saying they hear Jason and I are referring to >10 minutes ago...? [15:05:10] Did you hear Jason and I talking about the ship not hearing us? [15:05:36] No, didn't catch that. [15:05:56] zoom on crustacean? [15:06:07] Right. So the telecon was dropped earlier than was realized. [15:06:45] can hear u [15:06:48] Sorry Dhugal - just saw this and we're mid move [15:06:49] You are not back on the line. [15:06:55] Next time we see a decent outcrop/cliff we should try to grab another rock from the base. If we are in a gully it might represent the best region for loose basalt [15:06:56] Scant evidence of bottom current here. Can the crew report current velocity?? [15:07:00] At least I don't hear you. [15:07:04] Oh - there you are! [15:07:28] @kevinkonrad - do you want another deep rock, or prefer one from the top - we can only get 2 per dive [15:07:35] I can't hear Roland on the phone though... [15:07:39] more zoanthids! [15:08:05] LAT : 32.922008 , LON : -54.914193 , DEPTH : 2798.6727 m, TEMP : 3.03213 C, SAL : 34.94387 PSU, DO : 6.42141 mg/l [15:08:27] That is, the"warning" he gave is not coming over the telecon. And Kasey was not coming over the phone. [15:08:56] bramleymurton leaves the room [15:09:01] Never mind - I just discovered a gremlin. [15:09:02] @scott copy. will relay [15:09:07] okay [15:09:59] Somehow the video stream from the start of the dive began auto-playing and so I was hearing in the background all of that intro! Bottom line: telecon is reestablished. [15:10:12] two is dissapointing, deeper is better [15:10:13] we don't hear jason over OKES [15:10:15] OKEX [15:10:26] That looks like a chrysogorgiid skeleton... [15:11:03] I can hear Jason on the telecon and the streamed video [15:11:57] Am hoping to find a small brown narcomedusa attached and eating gorgonians. Need very close zooms on the branches near the jeely to look for jelly polyps.. [15:11:58] copy [15:12:03] Can crew report bottom current velocity?? [15:13:05] LAT : 32.922094 , LON : -54.914219 , DEPTH : 2792.833 m, TEMP : 3.04385 C, SAL : 34.93744 PSU, DO : 6.29585 mg/l [15:13:11] and direction [15:13:15] heatherjudkins leaves the room [15:13:55] @Dhugal: I'd like to see those as well. I can't recall seeing them in the Atlantic before, but certainly on our Pacific dives. [15:15:31] noellehelder leaves the room [15:15:38] @kevin, because we are limited in the number of rock samples, we often try to get something at the beginning of the dive and save the second for further up, unless it is something spectacular [15:16:05] Falkor has just found a couple. Would be great to find them in the Atlantic as well! [15:16:30] that seemed to be a hard stalk [15:16:31] Amphipod on mud stick. [15:16:49] Agree Les - I'm wondering if the stick was growing up off a skeleton [15:16:53] @jason I understand, based on my experience ~~20% of ROV recovered seamount basalts have the potential to be dated. So we need to be particularly then [15:17:05] Quite a few gooseneck barnacles around [15:17:17] I think the stick/amphipod was so small you did not realize you had a good view of it and pulled away! [15:18:06] LAT : 32.921991 , LON : -54.914293 , DEPTH : 2788.6071 m, TEMP : 3.03788 C, SAL : 34.94522 PSU, DO : 6.50701 mg/l [15:18:22] Yeah Scott, made me wonder if something had settled on that old part and was just starting to grow [15:19:25] compared with the last dive, there are a lot more boulders here. The mapping shows this seamount has a star-like planform. We are between two of the arms of the star and the boulders and breccia indicate this is probably a mass-wasting feature similar to sector-collapse seen at many other seamounts (and ocean islands). [15:19:51] kensulak leaves the room [15:20:34] emilycrum leaves the room [15:21:16] pterrapods are 'sea butterflies' right? made of aragonite? [15:21:33] kiramizell leaves the room [15:22:28] bramleymurton leaves the room [15:22:46] xenophyophore for sure! [15:22:54] Shinkaia?!! [15:23:07] LAT : 32.922044 , LON : -54.914315 , DEPTH : 2788.8114 m, TEMP : 3.04541 C, SAL : 34.95005 PSU, DO : 6.25895 mg/l [15:23:16] noellehelder leaves the room [15:23:34] yes, made of aragonite [15:23:50] @Bram: yes, pteropods are sea butterflies. [15:23:58] they use barite [15:24:15] Ba instead of Ca, as far as I remember [15:24:29] Shinkaiya maybe [15:24:51] This same type of Xeno is very abundant is places on the calcareous ooze in the deep basins of the Bahamas - orange to grapefruit size [15:25:27] zoanthids on stalk? [15:25:32] protein [15:25:40] I think... [15:26:25] Stalked euplectellid. Many to choose from, somewhat diverse: https://www.ncei.noaa.gov/waf/okeanos-animal-guide/gal_Euplectellidae_Stalked.html [15:26:31] bramleymurton leaves the room [15:26:55] are those little hydroids near the opening? [15:27:11] one long spicule I think [15:27:19] @Dhugal: didn't notice that. [15:27:43] the stalk is made of a bundle of very long spicules [15:27:46] Sorry Dhugal - already moved by the time that came in, but I didn't see one. [15:27:57] always have my eye out for hydroids ;-) [15:28:07] LAT : 32.922061 , LON : -54.914313 , DEPTH : 2786.9309 m, TEMP : 3.04558 C, SAL : 34.94435 PSU, DO : 6.51698 mg/l [15:28:12] :) [15:28:16] Do sponges typically have mutualistic organisms living on them like the corals had? [15:28:34] jellyfish! [15:29:43] a hydrozan. Maybe trachymedusan [15:29:44] bramleymurton leaves the room [15:30:24] Jim Thomas and I described a new genus of amphipod that was trapped inside a glass sponge. Entered as youngster and then grew too large to leave [15:30:47] shrimp on octocoral to the right? [15:30:54] kensulak leaves the room [15:31:11] anenome [15:31:20] @Les...but without a mate? [15:31:48] cerianthid [15:32:37] pierrejosso leaves the room [15:32:46] anenome of the people? [15:33:05] pan right to shrimp? [15:33:08] @Cindy, there were 20 or 30 individuals in each sponge. [15:33:09] LAT : 32.922037 , LON : -54.914372 , DEPTH : 2784.2521 m, TEMP : 3.04748 C, SAL : 34.94568 PSU, DO : 6.07587 mg/l [15:33:15] @bram...ouch [15:33:29] :-) [15:34:23] @les...cool. It's so great to be able to ask questions of the experts here! [15:35:03] noellehelder leaves the room [15:35:03] zoanthids again! [15:35:54] bramleymurton leaves the room [15:36:12] Can we collect it? [15:36:14] those pores may be cinclides for intake of water, extrusion of acontia (threads with stinging cells) [15:36:21] with slurp gun? [15:36:47] the only one specimen was collected in Pacific of this [15:37:07] and I am not sure if it is in museum [15:37:21] it is sitting on the rock [15:37:25] Interesting that so many deep-living cirrianthids are dark blue, blue-purple, or black. I suppose perhap camo against the dark crusted background? But perhaps some other function of this coloration, or an expression of physiology?? [15:37:32] use slurp gun [15:37:46] yeah, @Cindy, that's true for all of us.... a good collection of knowledge here [15:37:58] it is very feebly attached [15:38:03] will need to scrape base with slurp gun while sucking [15:38:09] LAT : 32.92208 , LON : -54.914471 , DEPTH : 2783.6214 m, TEMP : 3.06595 C, SAL : 34.93012 PSU, DO : 5.88661 mg/l [15:38:12] no)))) [15:38:17] it is just sitting [15:38:33] but it may begin to shed everything [15:38:35] if camo, suggests a visual predator and maybe bioluminexence since there isn't light. Not so sure about the camo hypothesis in the dark...ideas? [15:38:37] hope slurp strength is good... [15:39:04] Chris kelly tried to collect with arm and it swam away [15:39:24] haroldcarlson leaves the room [15:39:35] wow! Never seen an adult swim [15:39:50] it is TUBELESS tube anemone [15:39:57] vagabond [15:39:59] they think it's too bug for the suction sampler [15:40:07] People often send me photos of the juveniles, thinking they are medusae [15:40:10] big [15:40:17] are we looking up-slope on Cam 1? Bcs the current seems to be coming towards us (e.g. down-slope) [15:40:20] I recall that sequence - nifty maneuver by the anemone, detached and swam away rather strongly [15:40:34] If it is not likely going to be successful trying to collect with manipulator, shouldn't we just leave it be? [15:40:50] it will swim away from everything else [15:41:08] They are going to try the suction sampler - i think once it retracts it'll be okay [15:41:15] try to do bottom-first [15:41:29] Sorry - I typed that comment when I heard them saying it was too big for suction sampler. [15:41:32] bramleymurton leaves the room [15:41:42] I mean backwards [15:41:51] kimberlygalvez leaves the room [15:41:51] I was trying to preempt the suggestion to sample with manip. [15:41:54] It's a challenge - but we are trying Tina! [15:42:45] TIna - do you have a tentative iD? [15:42:48] I have few tentacles of it without body... [15:42:58] kimberlygalvez leaves the room: Replaced by new connection [15:43:04] we do not know what is it)) even family [15:43:10] LAT : 32.92203 , LON : -54.914465 , DEPTH : 2783.6356 m, TEMP : 3.06249 C, SAL : 34.93937 PSU, DO : 5.81608 mg/l [15:43:12] thanks! [15:43:17] looks like Arachnactidae [15:43:45] heatherjudkins leaves the room [15:44:01] better slurp) trust me)))) [15:44:22] @Tina: they are just trying to make it retract a bit before sluroping [15:44:51] tentacles in Ceriantharia are not retractable, but it can contract a bit [15:44:55] We have passed that onto the pilot, but it's their call i'm afraid. [15:45:08] Oh. I thought you said they were slurping! [15:45:33] They decided against - we told them better to slurp, but they have made their call [15:45:44] kiramizell leaves the room [15:45:57] ))) they are pilots)) [15:46:25] trust me it will smim away [15:46:48] bramleymurton leaves the room [15:47:11] maybe then can slurp up the tentacles that are left [15:47:26] amazing how easily they came off [15:47:29] I need body))))) [15:47:43] I have couple of tentacles from Chris Kelley)))) [15:48:11] LAT : 32.921991 , LON : -54.914426 , DEPTH : 2782.3206 m, TEMP : 3.06567 C, SAL : 34.94925 PSU, DO : 6.04584 mg/l [15:48:39] normally to determine ceriantharia you need to cut it open and see arrangement of mesenteries [15:48:46] Well, that showed Rhian's comment about deciduous tentacles! [15:48:50] speaking of swimming...next time we see a brisingid seastar perched high, would it be too cruel to bump it off to see if it can swim? I read an anecdote about swimming capability but yesterday others said they thought not. I am wiring a paper about brisingid distributions ion relict sulfides where they occur in large numbers. Would like to know a bit more about the ways they can distribute themselves. [15:49:00] and tentacles (fortunally inner cycle is enouph [15:49:25] Boy, I wish we could simply wire a paper instead of write it. [15:50:03] too true [15:50:38] ))))) I was told)))) no body)))) [15:51:27] tell pilots, that I predicted it and it was a reason we asked to slurp [15:51:32] There will be DNA samples for sure... [15:51:39] pf( [15:52:00] but it does not help to describe species [15:52:35] so, where did the body go?? [15:52:36] Sorry Tina - we tried to suggest, maybe well see more, we've seen them before on the NES for sure, but maybe also CR. [15:52:46] no body - no description) [15:52:53] There is some in the biobox, and also some in the slurp [15:53:11] LAT : 32.922052 , LON : -54.914443 , DEPTH : 2780.3673 m, TEMP : 3.07119 C, SAL : 34.93879 PSU, DO : 6.53449 mg/l [15:53:13] ditto for fishes and other benthopelagic organisms - photos are great, DNA is useful, but you need the actual specimen to evaluate diagnostic details [15:53:36] Same for most organisms, right? [15:53:43] nice try) [15:54:08] @Rhian: thoughts on brisingid swimming expt? [15:54:31] yep, that is why collection is so important, at least for the first time we see something. But then, of course, someone has to do the work-up.... [15:54:44] I will try to find video at seatube where it was swimming away )) the previous try with the arm) [15:55:16] cindyvandover leaves the room [15:55:45] ok, off to galley for me.... [15:56:02] I love the idea - we're going to try to make some distance here along our line - there is a lot of interest to see the top [15:56:12] @cindyvandover [15:56:33] kiramizell leaves the room [15:56:47] big ctenophores come to me! [15:57:00] bramleymurton leaves the room [15:57:37] peterauster leaves the room [15:57:58] yellow zoanthids? [15:58:12] LAT : 32.922029 , LON : -54.914516 , DEPTH : 2775.1674 m, TEMP : 3.07069 C, SAL : 34.94702 PSU, DO : 6.63441 mg/l [15:58:55] and barnacle! [15:58:58] @rhain agreed, we are down in a gully, which appears to be full of mass-wasted rubble and scree (albeit cemented by FeMn crust), but not insitu. [15:58:59] Bamboo to left has nodal branching [15:58:59] heatherjudkins leaves the room [15:59:25] kimberlygalvez leaves the room [16:01:02] So, "Isidella" [16:01:11] what is that conglomeration of polyps? [16:01:21] haroldcarlson leaves the room [16:01:25] leswatling leaves the room [16:02:18] @dhugal - probably worm or other epifauna overgrowned [16:02:27] watch change going on here [16:03:13] LAT : 32.922003 , LON : -54.914555 , DEPTH : 2775.661 m, TEMP : 3.06673 C, SAL : 34.9497 PSU, DO : 6.47069 mg/l [16:03:42] Corallium there [16:04:00] Nice habitat - interesting sessile fauna - but thin on fishes. Got to sign off now. Thanks to pilot and camera person for earlier zoomed in look at Ilyophis synaphobranchid. [16:04:29] what is the plume-shaped cnidarian? [16:04:55] Bathypathes - black coral [16:05:00] thanks! [16:05:03] bramleymurton leaves the room [16:05:05] Really beautiful, looked like it had eggs in it too [16:05:14] kensulak leaves the room [16:05:57] kiramizell leaves the room [16:06:10] We're going to make tracks a bit here and try to get further along our line before sampling again. We can snap zoom though, so please shout if you'd like to see anything further. [16:07:07] great context images on Cam 2 [16:07:11] anything floating ;-) [16:07:35] just the ROV (luckily) [16:08:07] Still waiting for the mama giant squid.... [16:08:13] LAT : 32.921875 , LON : -54.914514 , DEPTH : 2770.4402 m, TEMP : 3.06913 C, SAL : 34.95153 PSU, DO : 6.50028 mg/l [16:09:12] :) [16:09:24] just a matter of time... ;-) [16:09:28] kimberlygalvez leaves the room: Replaced by new connection [16:11:16] euplectellid: https://www.ncei.noaa.gov/waf/okeanos-animal-guide/EuplectellidaeOther007.html [16:12:13] nice Scott! Thanks! [16:12:34] emilycrum leaves the room [16:13:12] @Kim: how is the audio from your perspective? When I switch to listening to the stream, the telecon sounds very broken up (no problem on the phone itself) and I can't separate science and pilot channels, so lots of crosstalk. [16:13:15] LAT : 32.921938 , LON : -54.9146 , DEPTH : 2767.8811 m, TEMP : 3.06946 C, SAL : 34.94827 PSU, DO : 6.5048 mg/l [16:13:42] slightly broken up - I will check in [16:14:23] bramleymurton leaves the room [16:15:56] only had half my headphones one, just realized all science chat is in the left ear while the pilot is in the right. [16:16:01] and brisingid to left [16:16:15] @Kevin, you are correct [16:16:18] @Kevin: yes, that is the way the system is set up [16:16:27] beat you Scott! :-) [16:16:31] haha [16:16:47] scott do you want to chime in here? [16:16:57] I didn't hear the start of the question [16:17:16] there seems to be a lack of sea life like crabs and fish here... is this usual? [16:17:18] re: brisingid: interest is in seeing if brisingids can swim, so gently bump it off it's perch....if situaiton allows [16:17:50] pierrejosso leaves the room [16:18:15] LAT : 32.921932 , LON : -54.914459 , DEPTH : 2765.035 m, TEMP : 3.07024 C, SAL : 34.95177 PSU, DO : 6.51247 mg/l [16:18:20] bramleymurton leaves the room [16:20:07] fish [16:20:32] cusk eel? [16:21:11] yes ... and ophidiid cusk eel [16:21:18] Agree with Upasana: Ophidiidae [16:22:03] Sorry ... was trying to order valance clips for our venetian blinds ... sailing on expeditions from home requires parallel processing [16:22:41] No worries! Thanks for the verification [16:23:06] bramleymurton leaves the room [16:23:15] LAT : 32.921795 , LON : -54.914741 , DEPTH : 2754.1733 m, TEMP : 3.11369 C, SAL : 34.91955 PSU, DO : 6.36912 mg/l [16:26:27] seafloor looks like is largely scree of rock debris. [16:28:15] LAT : 32.921904 , LON : -54.914857 , DEPTH : 2745.5921 m, TEMP : 3.1566 C, SAL : 34.95136 PSU, DO : 6.58597 mg/l [16:28:37] bramleymurton leaves the room [16:29:10] Not a bad spot to collect a rock in my opinion. I'll leave it up to Jason/Kira to make the call. [16:29:52] agreed - might get a reasonable sample of the volcanic rock here [16:30:06] I think in the octocorals - certainly the bamboo corals - the skeleton is calcite. [16:30:26] haroldcarlson leaves the room [16:31:08] we can look at a rock collection, looking to identify an area with several suitable options [16:31:12] Yes, most ocotocorals are calcite, most scleractinians are aragonite - but they've been looking at larval scleractinians and found some of them precipitate calcite first [16:31:23] and the current ship move is complete [16:31:28] Regarding the abundance of those stripped bare corals we saw earlier on the dive, since there is uncertainty as to what is causing this phenomenon, would it be helpful to collect a sample of any these stripped corals in order to examine the specimen microscopically looking for evidence as to why this is happening? [16:31:31] Particularly in areas like antarctica where precipitating is hard. [16:31:35] @Rhian: Interesting [16:31:49] in terms of the coral abundance, I guess it depsnds on the exposure to the dominant current flow. At this depth I expect the water mass is North Atlantic Deep Water and is flowing from the north to the south. We are diving o the eastern flanks, so may be in a bit of a down-welling 'shadow'? [16:32:01] What is in vcenter? Tipped over colony? [16:32:23]