[02:03:48] kiramizell leaves the room [11:25:49] DIVE13 test message from the Okeanos Explorer [11:34:35] EX2104_DIVE13 ROV powered off [12:14:33] EX2104_DIVE13 ROV Launch [12:21:58] EX2104_DIVE13 ROV on Surface [12:22:44] EX2104_DIVE13 ROV Descending [12:24:02] LAT : 35.610949 , LON : -58.203507 , DEPTH : 24.7378 m, TEMP : 25.52901 C, SAL : 36.41111 PSU, DO : 6.83547 mg/l [12:29:02] LAT : 35.610469 , LON : -58.204502 , DEPTH : 100.0968 m, TEMP : 19.41409 C, SAL : 36.61626 PSU, DO : 7.43089 mg/l [12:34:03] LAT : 35.610345 , LON : -58.205107 , DEPTH : 255.0075 m, TEMP : 18.62726 C, SAL : 36.61841 PSU, DO : 6.87102 mg/l [12:39:04] LAT : 35.610488 , LON : -58.205182 , DEPTH : 398.9337 m, TEMP : 17.75701 C, SAL : 36.45098 PSU, DO : 6.28247 mg/l [12:44:04] LAT : 35.610658 , LON : -58.205168 , DEPTH : 547.1276 m, TEMP : 15.63388 C, SAL : 36.08106 PSU, DO : 5.76955 mg/l [12:49:04] LAT : 35.610787 , LON : -58.205369 , DEPTH : 694.7167 m, TEMP : 12.73356 C, SAL : 35.64154 PSU, DO : 4.99037 mg/l [12:54:05] LAT : 35.610924 , LON : -58.205513 , DEPTH : 849.1206 m, TEMP : 9.71024 C, SAL : 35.28134 PSU, DO : 4.73319 mg/l [12:59:06] LAT : 35.611089 , LON : -58.205641 , DEPTH : 998.7529 m, TEMP : 7.3777 C, SAL : 35.15535 PSU, DO : 5.90349 mg/l [13:04:06] LAT : 35.611183 , LON : -58.205906 , DEPTH : 1157.4569 m, TEMP : 5.98829 C, SAL : 35.11912 PSU, DO : 7.02938 mg/l [13:09:06] LAT : 35.611449 , LON : -58.206237 , DEPTH : 1310.6079 m, TEMP : 5.10667 C, SAL : 35.04974 PSU, DO : 7.673 mg/l [13:14:07] LAT : 35.611584 , LON : -58.206497 , DEPTH : 1465.0355 m, TEMP : 4.62268 C, SAL : 35.0157 PSU, DO : 8.0507 mg/l [13:19:08] LAT : 35.611551 , LON : -58.206715 , DEPTH : 1620.3128 m, TEMP : 4.24236 C, SAL : 34.98583 PSU, DO : 8.28032 mg/l [13:24:08] LAT : 35.611472 , LON : -58.206875 , DEPTH : 1779.4857 m, TEMP : 4.03586 C, SAL : 34.97746 PSU, DO : 8.29931 mg/l [13:29:09] LAT : 35.611368 , LON : -58.206959 , DEPTH : 1931.0013 m, TEMP : 3.91433 C, SAL : 34.97316 PSU, DO : 8.28681 mg/l [13:34:10] LAT : 35.611388 , LON : -58.207001 , DEPTH : 2075.5635 m, TEMP : 3.76948 C, SAL : 34.97045 PSU, DO : 8.26593 mg/l [13:39:10] LAT : 35.611244 , LON : -58.207082 , DEPTH : 2223.1044 m, TEMP : 3.60919 C, SAL : 34.96309 PSU, DO : 8.27602 mg/l [13:44:11] LAT : 35.611258 , LON : -58.20703 , DEPTH : 2372.9835 m, TEMP : 3.449 C, SAL : 34.95813 PSU, DO : 8.21554 mg/l [13:49:12] LAT : 35.611177 , LON : -58.206729 , DEPTH : 2454.733 m, TEMP : 3.38686 C, SAL : 34.95629 PSU, DO : 8.19596 mg/l [13:53:24] jocelyncooper leaves the room: Replaced by new connection [13:54:11] bottom in sight [13:54:14] LAT : 35.611446 , LON : -58.206538 , DEPTH : 2516.2423 m, TEMP : 3.32914 C, SAL : 34.95546 PSU, DO : 8.20629 mg/l [13:55:58] Sargassum tumbleweed [13:57:21] EX2104_DIVE13 ROV on Bottom [13:59:14] LAT : 35.611402 , LON : -58.20639 , DEPTH : 2530.2737 m, TEMP : 3.32208 C, SAL : 34.95532 PSU, DO : 8.19639 mg/l [14:02:06] Halasaur? [14:03:30] yes ... halosaur ... Aldrovandia something [14:04:14] LAT : 35.611353 , LON : -58.206398 , DEPTH : 2531.73 m, TEMP : 3.29098 C, SAL : 34.95513 PSU, DO : 8.21887 mg/l [14:04:45] Worth a squeeze test if they can land [14:05:04] and dead bamboos.. Good morning! [14:05:16] yay kevin is here [14:05:21] Good morning! [14:05:33] Where else would I be on a lovely sunday morning! [14:05:34] peterauster leaves the room [14:05:37] morning TIna! [14:06:00] seems like this bamboo right is still with polyps [14:06:12] Only geologist who can do fieldwork in a bathrobe with cats on his lap, I'm living in the best time [14:06:24] Yes Tina - i'll ask for some zooms around this boulder before we leave [14:06:29] is it possible that this one is recent rock? [14:07:05] @kevin, no hammer? [14:07:20] Given there 5cm could we put two in a box? [14:07:41] I got my belt on with hammer and bruton just in case [14:08:18] @kevin, good.. no geologist without hammer)) [14:09:15] LAT : 35.611318 , LON : -58.206416 , DEPTH : 2531.6489 m, TEMP : 3.29827 C, SAL : 34.95284 PSU, DO : 8.16591 mg/l [14:09:54] fingers crossed [14:10:02] Thank you! [14:11:37] need to reboot, will be back in 5 minutes [14:11:42] tinamolodtsova leaves the room [14:13:37] The rock is stuck in the fingers, they're just working through trying to release it [14:14:16] LAT : 35.611307 , LON : -58.206398 , DEPTH : 2532.1801 m, TEMP : 3.30157 C, SAL : 34.95544 PSU, DO : 8.1651 mg/l [14:14:55] jocelyncooper leaves the room [14:17:47] The halosaur nicely imaged a short while ago is a species of Aldrovandia, probably A. rostrata at this depth. The horizontal sculling posture is a searching and feeding posture just above soft substrate. Halosaurs ingest mouthfuls of sediment when their array of sensors under that long snout detect buried benthos. They ingest and spit the sediment back out. When done in an area, the halosaur lifts higher and drifts passively in the current. [14:19:16] LAT : 35.611309 , LON : -58.20641 , DEPTH : 2533.6653 m, TEMP : 3.29395 C, SAL : 34.95074 PSU, DO : 8.16765 mg/l [14:20:30] Thank you, sorry about getting that rock stuck [14:21:17] How it goes @kevin! [14:23:05] So there is a rock stuck in the jaws that will prevent snipping with the claw so we have to pay that in mind for any future samples this dive [14:23:47] Bramble bamboo coral [14:24:16] LAT : 35.611303 , LON : -58.206448 , DEPTH : 2531.6934 m, TEMP : 3.30286 C, SAL : 34.95325 PSU, DO : 8.21297 mg/l [14:24:18] Don't see the nodes... [14:24:20] Phew! Jaws back in action! [14:24:32] this is what we called the "right angle bramble" from the angle of the branching [14:25:22] may not have nodes, or very few [14:25:46] be back in a bit [14:25:48] kevinkonrad leaves the room [14:29:17] LAT : 35.611413 , LON : -58.206422 , DEPTH : 2526.204 m, TEMP : 3.3079 C, SAL : 34.95368 PSU, DO : 8.17061 mg/l [14:33:04] agree for bamboo [14:33:20] and also stolonifera left [14:33:39] baby bamboo [14:34:18] LAT : 35.611407 , LON : -58.206499 , DEPTH : 2525.8084 m, TEMP : 3.30051 C, SAL : 34.95426 PSU, DO : 8.17212 mg/l [14:34:23] mysid feeding on chryso polyps? [14:34:54] was in the background on the right [14:35:34] peterauster leaves the room [14:36:02] Hemicorallium bathyrubrum [14:36:05] there are two polyps at the end of each branche [14:36:38] preferred habitat seems to be vertical surface [14:37:25] @les, prefered no sedimented surface [14:37:48] good point @Tina [14:39:17] it is how brambles grow when not disturbed [14:39:20] LAT : 35.611412 , LON : -58.206495 , DEPTH : 2523.1852 m, TEMP : 3.29782 C, SAL : 34.95472 PSU, DO : 8.17819 mg/l [14:40:36] the barnacle is Glyptelasma but I don't remember the species. [14:43:37] peterauster leaves the room [14:44:03] @Tina, I think so. There have been several colonies we have seen over this cruise that have made me think that the bramble can also grow upright, maybe if nothing else is around. [14:44:19] LAT : 35.611471 , LON : -58.2066 , DEPTH : 2519.2971 m, TEMP : 3.30443 C, SAL : 34.95383 PSU, DO : 8.16326 mg/l [14:45:23] Synallactidae? [14:45:33] @Les, they may have quiet good regeneration ability. There are Leiopathes brambles in the Bay of Byscay [14:47:19] @Les, Tina: if we are to believe some of the genetics results, the type that comes from the Nashville Seamounts brambles grows as an upright colony in the Bahamas. [14:47:47] Wonder if that bite got stuck in its teeth? [14:49:20] LAT : 35.611486 , LON : -58.206302 , DEPTH : 2520.4151 m, TEMP : 3.30936 C, SAL : 34.95476 PSU, DO : 8.16063 mg/l [14:49:55] @scott, quite possible. we have no sclerites and there is more trouble to tell them apart when they are regenerating [14:50:07] interesting primnoid, 4 polyps per whorl [14:51:54] Excellent info @Scott.... I will have to check the polyps on those colonies. [14:52:12] jocelyncooper leaves the room [14:52:21] I would put Pseudoanthomastus [14:52:39] and there is a WORM underneeth [14:52:43] also suggests the bramble is growth mode with no generic significance [14:53:19] but regeneration ability may be [14:54:20] LAT : 35.611503 , LON : -58.20651 , DEPTH : 2516.6353 m, TEMP : 3.31317 C, SAL : 34.95646 PSU, DO : 8.15906 mg/l [14:56:26] pooping on camera? [14:56:53] Hah - I think it was actually a skeleton shrimp there [14:58:13] Vomiting maybe! It was the front end. Perhaps it was feeding on that material. [14:58:15] good eyes @Rhian! I had to go back and look. Maybe a commensal caprellid [14:58:38] There was definitely a caprellid earlier at base of the primnoid [14:59:08] I think there was one on the scale worm too [14:59:16] The caprellid was short and compact, which is why I thought commensal [14:59:21] LAT : 35.611609 , LON : -58.206369 , DEPTH : 2512.6758 m, TEMP : 3.33468 C, SAL : 34.95487 PSU, DO : 8.16297 mg/l [14:59:28] Missed that! [15:02:44] Aldrovandia [15:03:20] may be I am misspelling it) [15:03:37] Looks good, Tina [15:04:01] urchin [15:04:21] LAT : 35.611603 , LON : -58.206516 , DEPTH : 2511.7717 m, TEMP : 3.33401 C, SAL : 34.95599 PSU, DO : 8.17502 mg/l [15:04:36] holothurian [15:05:15] Not what I think of as a sea pig, which are smaller with longer podia [15:05:26] not sure as well [15:05:41] But, really, aren't they all sea pigs rooting around in the sediment? [15:05:46] it may be that weird family beginning with L. [15:06:37] jaymesawbrey leaves the room [15:06:48] Looks something like a Synallactes [15:08:02] Aldrovandia rostrata - very long snout. Displays one of three color strategies for halosaurs. Many halosaurs are translucent white or silvery - well adapted to reflect any bioluminescent 'searchlights' of potential predators - designed to momentarily blind dark-adapted predator eyes. Other strategy is to be jet black as in the large halosaur Halosauropsis macrochir - adsorb the light instead of reflect. Third strategy used by the few benthopelagic halosaurs that spend much time well above the substrate is a 'dirty mottled darkish brown-black' as in Aldrovandia phalacra and A. oleosa. Designed to break up the body outline - and most effective above 1200 m where ambient sunlight does penetrate to the seafloor [15:09:21] LAT : 35.611753 , LON : -58.206517 , DEPTH : 2507.2969 m, TEMP : 3.3573 C, SAL : 34.95588 PSU, DO : 8.15522 mg/l [15:12:39] A late note about the sea cucumber and Tina's comment. I think she was trying to remember the family Laetmogonidae, which I would agree with based on the number and small size of the tube feet. Sea pigs tend to have much fewer and much thicker and larger tube feet. [15:13:23] thanks! I'm always a bit over excited about sea pigs...so I was hoping! [15:14:22] LAT : 35.61182 , LON : -58.206489 , DEPTH : 2501.6355 m, TEMP : 3.35691 C, SAL : 34.95648 PSU, DO : 8.21713 mg/l [15:14:34] Here is what I think of as a classic sea pig, Scotoplanes : https://oceanconservancy.org/blog/2019/07/03/everything-need-know-sea-pigs/ [15:16:04] And if you follow Scott's link, you will see the fewer thicker tube feet. These guys are in the family Elpidiidae [15:17:35] pierrejosso leaves the room [15:17:57] kimberlygalvez leaves the room [15:19:22] LAT : 35.611821 , LON : -58.206353 , DEPTH : 2501.2326 m, TEMP : 3.37415 C, SAL : 34.9562 PSU, DO : 8.11725 mg/l [15:21:14] In Pacific, you usually don't get crusts until you get down to about 700-800 m depth [15:21:42] octacnemid tunicate? [15:21:56] Not sure though [15:22:56] Stepped away... did I miss a tunicate? [15:23:38] I think so. It was left of cup coral [15:24:22] LAT : 35.611874 , LON : -58.206476 , DEPTH : 2493.7959 m, TEMP : 3.37544 C, SAL : 34.95723 PSU, DO : 8.13657 mg/l [15:25:22] Bathypathes? [15:25:33] Yes! [15:26:03] it is new species I am trying to describe))) [15:26:52] Good to know TIna, if a sample is helpful, we do have the CITES in place now [15:27:16] May have been a pelagic nemertean thta drifted by top of screen... [15:27:59] @Tina: what are we looking for? What is different from "typical" Bathypathes? [15:28:14] christopherkelley leaves the room [15:28:41] alternating pinnules [15:28:54] and very fleshy [15:29:22] LAT : 35.612016 , LON : -58.206499 , DEPTH : 2487.8471 m, TEMP : 3.3896 C, SAL : 34.95607 PSU, DO : 8.16161 mg/l [15:29:24] Thanks Tina - taller too? [15:30:51] size does not really matter, they are growing quite old. they are upright, fleshy with alternating pinnules and often with worm, and they are absolutely common [15:33:10] @Tina: we may have as many as 10 samples that meet that description from the New England Seamounts. We should work on getting them to you. [15:33:51] @Tina: as far as I know, only one is currently vouchered in a museum (at Yale Peabody) [15:34:23] LAT : 35.612089 , LON : -58.206539 , DEPTH : 2480.2634 m, TEMP : 3.39212 C, SAL : 34.95656 PSU, DO : 8.1636 mg/l [15:35:19] @Kim - can someone please move images from yesterday? [15:35:32] @Scott, maybe the others are here in Maine? I will have to look. Otherwise, there should be more than one at Yale. [15:35:51] Sargassum? [15:36:14] @Les: it may be that the black coral vouchers went to my lab... Will have to check. [15:36:47] If so, then they should go to Yale at some point... [15:37:04] @Les: yup. That has been the [long term] plan! [15:37:49] Not sure what the tall fuzzy stalk to right was (just when lights came up). Sponge? Black coral? [15:38:42] Oh sorry Scott, I missed that [15:38:47] Dennis looked at Yale specimen) it is covered [15:39:23] LAT : 35.612128 , LON : -58.206583 , DEPTH : 2478.7698 m, TEMP : 3.3948 C, SAL : 34.95663 PSU, DO : 8.18288 mg/l [15:39:38] @scott, it is exactly what Dennis wrote me other day (may be they are in Scott's fridge?) [15:40:12] strange, there is no any pens [15:40:53] grampy fish from yesterday [15:41:23] no, this one is more grampy [15:41:30] Ilyophis = genus, a synaphobranchus [15:41:45] not happy! [15:41:59] they do not like light [15:42:45] megancromwell leaves the room [15:43:37] My miss-type, a Synaphobranchid eel, but genus Ilyophis. That gaping and closing of the mouth is an oft-seen behavior when a synaphobranchid ell is suddenly blasted by bright lights. Often, these blinded fish then crash into the bottom [15:44:24] LAT : 35.612228 , LON : -58.206432 , DEPTH : 2470.9452 m, TEMP : 3.39576 C, SAL : 34.95744 PSU, DO : 8.20547 mg/l [15:44:27] @Ken thanks! [15:44:56] The ROV is not entirely benign in its affect upon organisms encountered: very bright lights, electric fields, vibrations, bow wave [15:45:34] @ken, they have so big eyes, that it is not surprizing. I wounder.. if sqid or octopus may be blinded [15:45:55] it does look like a synallactid yes.. [15:46:10] I think it is different from previous pink one [15:47:17] sea pig usually refers to the cukes in the family Elpidiidae.. the weird things with legs and tentacles [15:47:18] Syn-ah-lactid [15:47:54] hole! [15:48:17] Actinernus [15:48:57] @Tina, thank you! [15:49:24] LAT : 35.612286 , LON : -58.206557 , DEPTH : 2471.8538 m, TEMP : 3.40678 C, SAL : 34.95541 PSU, DO : 8.15145 mg/l [15:49:33] and tiny stalked crinoids [15:50:57] leswatling leaves the room [15:51:07] Conocrinidae [15:51:12] Nive little hidey hole! [15:51:26] I mean looks like conocrinus [15:52:40] Tina - I like your name 'grampy fish' for Ilyophis. The brown color is typical as well as the prominent white lateral line pores, and the notably small rounded pectoral fins (other synapho genera have larger, longer, often pointed pectoral fins). At this depth in the WNA, the species is most probably I. brunneus [15:53:39] Been watching on my phone. Really cool erosional features near the top of this seamount [15:54:20] @Ken - thanks for these key characters/comments; much appreciated! [15:54:25] LAT : 35.612332 , LON : -58.206457 , DEPTH : 2463.4413 m, TEMP : 3.41069 C, SAL : 34.95702 PSU, DO : 8.1789 mg/l [15:55:08] may be it was sediment slide? [15:55:36] vondawarehamhayes leaves the room [15:55:52] Wasn't sure earlier if thos little sunbursts on a stalk were cladorhizid sponges or hydroids... Pertty shameful for an invertebrate zoologist not to be able to distinguish phyla!! [15:56:12] Not much to my typing skills, either! [15:56:20] @scott, it was sponge [15:56:37] Thanks Tina. That was my fist thought and then I started to doubt. [15:57:04] Looks like a steep ridge where either fluid flow or gravitational instability has caused large slumps, interesting because it would indicate alot of these mass wasting events occur throughout the history of the seamount and not just when it's active or experiencing more rapid subsidence [15:57:20] I would like to replicate this dive (depth, traveling up wall to plateau) on the north side of the seamount to see if there are any differences at that scale. [15:57:24] I am often given pictures of sponges for cnidarians. they are generally more rigid [15:57:37] @Tina: agreed. [15:58:57] kimberlygalvez leaves the room [15:59:26] LAT : 35.612447 , LON : -58.206565 , DEPTH : 2460.2965 m, TEMP : 3.41036 C, SAL : 34.95777 PSU, DO : 8.14567 mg/l [16:02:13] Pilot change [16:03:11] Have to attend to other matters. Thanks to ROV crew for excellent close-up imagery of fishes encountered. In that last zoom-in on the eel Ilyophis, I could see and count the tiny pores of the lateral line across the top of the head. Those can be used to definitively identify the species [16:03:42] Have you been able to estimate the thickness of the FeMn crust at the slump outcrop? Seemed pretty thick on my phone [16:03:56] kensulak leaves the room [16:04:27] LAT : 35.612497 , LON : -58.206597 , DEPTH : 2455.9699 m, TEMP : 3.4329 C, SAL : 34.95732 PSU, DO : 8.16693 mg/l [16:04:47] Snail on stalk [16:04:58] left side halfway up [16:05:52] really hard to tell, some of the outcropping ledges look like ~~20cm, which is impressive [16:06:09] And the oxygen content! [16:07:41] that looks like a fragmented lobate flow [16:09:27] LAT : 35.612599 , LON : -58.206519 , DEPTH : 2451.9879 m, TEMP : 3.42943 C, SAL : 34.95756 PSU, DO : 8.20127 mg/l [16:11:14] if there a thick loose rock here it would be nice. [16:11:43] Yes) it is ours) [16:11:55] The one you would like?? [16:11:58] no polychaete? [16:12:09] yes, there is one [16:12:28] cladorhizid? [16:12:30] with a little carnivorous sponge... [16:12:36] Cladorhizidae [16:12:50] Tina - is this for sampling, or move on? [16:13:35] we can move [16:13:49] Scott sampled them a lot [16:13:59] Thanks! [16:14:28] LAT : 35.612596 , LON : -58.206494 , DEPTH : 2447.3879 m, TEMP : 3.43485 C, SAL : 34.95894 PSU, DO : 8.1752 mg/l [16:14:57] not so yellow as was yesterday [16:15:08] Asbestopluma sp. - carnivorous sponge [16:15:55] this looks more healthy than yesterday's [16:15:58] saw your comment, Kevin. I will keep an eye out [16:16:28] may be full-grown? [16:16:33] very nice! is it spawning? [16:18:10] christophermah leaves the room [16:18:13] take some [16:18:29] spectacular [16:18:34] I bet nobody have seen these animals spawing [16:19:12] dhugal is having nightmares not being here [16:19:28] LAT : 35.612609 , LON : -58.206509 , DEPTH : 2447.7334 m, TEMP : 3.42943 C, SAL : 34.95877 PSU, DO : 8.17743 mg/l [16:19:59] Remember Dendrogramma? that "new phylum" a few years ago? DNA showed it to be a bract from one of these.. A Rhopaliiid [16:20:18] Great story, Chris! [16:21:40] yes.. great closer of Dendrogramma [16:22:02] heatherjudkins leaves the room [16:22:47] well, that should be a first! [16:23:26] That was just stunning, amazing! [16:24:15] I'm not sure the colony below is the "bramble". Very angular. I predict an Isidella. The upper one is different. [16:24:28] LAT : 35.612701 , LON : -58.206665 , DEPTH : 2442.5461 m, TEMP : 3.44397 C, SAL : 34.958 PSU, DO : 8.13949 mg/l [16:26:39] Could there be a "trident" ahead to right. (after this beauty!) [16:27:05] this one have nodes [16:27:33] and very long sclerites [16:28:07] vondawarehamhayes leaves the room [16:28:12] most of them one side [16:28:52] they incrusted with sclerites!!! [16:29:07] with zoanthids? [16:29:25] zoanthids are taking sclerites from host [16:29:29] LAT : 35.612736 , LON : -58.206718 , DEPTH : 2438.1152 m, TEMP : 3.44788 C, SAL : 34.95451 PSU, DO : 8.1689 mg/l [16:29:53] there is a Glyptelasma that has been overgrown by the bamboo tissue [16:30:24] slowly smothered [16:30:28] and these sclerites are attanged neetly in lines [16:30:55] arranged [16:31:59] it has anastomoses? [16:32:46] t he anemone basket [16:34:29] LAT : 35.61279 , LON : -58.206636 , DEPTH : 2432.7018 m, TEMP : 3.44867 C, SAL : 34.95871 PSU, DO : 8.17235 mg/l [16:35:44] Large erosional channel [16:36:47] leswatling leaves the room [16:37:32] jelly [16:38:36] christophermah leaves the room [16:39:30] LAT : 35.612815 , LON : -58.206665 , DEPTH : 2433.8468 m, TEMP : 3.45029 C, SAL : 34.95891 PSU, DO : 8.12263 mg/l [16:39:36] kimberlygalvez leaves the room [16:43:24] vondawarehamhayes leaves the room [16:43:24] stevenauscavitch leaves the room [16:44:30] LAT : 35.612855 , LON : -58.206702 , DEPTH : 2430.7309 m, TEMP : 3.45929 C, SAL : 34.95911 PSU, DO : 8.15701 mg/l [16:44:34] so the current is swiping sediment from other side of seamount here? [16:45:39] @Tina, yes, I think that and from above and maybe downslope at times [16:45:41] urchin is scrapping surface of dead sponge... [16:46:06] @kira, so other side is less sedimented? [16:48:36] these branchy things are hydroids or what? [16:49:16] vondawarehamhayes leaves the room [16:49:31] LAT : 35.612896 , LON : -58.206633 , DEPTH : 2430.5718 m, TEMP : 3.47125 C, SAL : 34.95545 PSU, DO : 8.14852 mg/l [16:50:11] I thought it was a discarded turkey caracss, at first! [16:50:18] sponge with tail [16:50:20] *carcass [16:51:39] Baby-Xeno [16:52:31] I never heard about basketball, golf-balls may be [16:53:08] someone was on that chat on dive #1 Tina saying they go thtat size [16:53:45] sponges for chris [16:53:52] American xenos - bigger! ;-) [16:54:14] Bigger one is a hexact, not sure which family. Little stalked one is back was probably demosponge [16:54:18] yea... scott, I have heard about.. bigger and better)) [16:54:32] LAT : 35.612895 , LON : -58.206606 , DEPTH : 2429.2832 m, TEMP : 3.51203 C, SAL : 34.95974 PSU, DO : 8.13194 mg/l [16:54:34] Hake? [16:54:40] Antimora? [16:54:48] tell me I am right))) [16:55:21] Agree with you and Tina. Antimora sp [16:56:03] somebody told me nobody know what Antimora eats. [16:57:33] I don't know either Tina. Also, it seems that the Atlantic species of Antimora is A. rostrata but don't know if there are other deep water species out there. [16:58:00] What? No bamboo coral afficianados in the front row??? [16:58:27] bamboo [16:58:34] You can't really compete with iridigorgia....:) [16:58:39] but pilots do not like them)) [16:58:40] True. [16:59:09] Synallactid. 3rd view today. [16:59:32] LAT : 35.612945 , LON : -58.206708 , DEPTH : 2426.1016 m, TEMP : 3.55078 C, SAL : 34.96096 PSU, DO : 8.14576 mg/l [17:00:42] This looks like Hansenothuria sp, which used to be in the Synallactidae but now they don't have it in a solid family, at least last time I checked [17:00:46] they are deposit-fiders, they are taking only upper finer layer of sediment, at least those at the surface [17:01:13] scraggly looking coral... [17:01:29] Almost looks rooted in the desiment [17:01:35] *sediment [17:02:31] One more on sea cucumber. Just checked WoRMS and they have Hansenothuria in the order Persiculida but don't have it in any family [17:02:51] I am always lost in geology. How old are New England seamounts? [17:03:09] Cretaceous I think Tina but am not sure [17:03:19] @chris, may be they are doing revision? [17:03:24] Nashville Seamount next door is 82 Ma [17:03:41] They range from 100 Ma in the North to 80 in the south of the chain [17:03:46] Yes, agree. But is has been like that for at least a few years [17:04:33] LAT : 35.613006 , LON : -58.206695 , DEPTH : 2421.6185 m, TEMP : 3.55234 C, SAL : 34.9614 PSU, DO : 8.12462 mg/l [17:04:56] @chris, some reviosu=ions take time, see how we call bamboos in clades? [17:05:05] There is one questionable age from Greg Seamount (~~39N, 61W) lava flow that was 40 Million years old. I would love to retest those ages/sample that seamount more [17:05:35] @Tina: ouch! [17:05:41] @kevin, but it is possible that it was more recent erruption? [17:05:52] @Tina: we are close to a couple of publications. This year for sure! [17:06:08] vondawarehamhayes leaves the room [17:06:11] @Scott, let it be this year!!! [17:06:15] Fun to tease Scott, isn't it Tina? [17:06:30] @tina it is. Sometimes these seamounts form from one process and then reactivated millions of years later due to some other process [17:06:44] @chris, yea// it was so visible?}} [17:07:46] @Kevin, was Greg aged by Ar/Ar or the earlier less accurate method that escapes me right now? [17:08:03] @Tine, and Chris: :-) But isn't it easier to say "clade x" than whatever Latin name we will come up with? [17:08:44] @scott, I think, Clade X sounds much more sophisticated [17:08:58] bramble? [17:09:00] Gregg was dated using an older K-Ar technique. That technique does not have internal accuracy testers so its less reliable than modern 40Ar/39Ar age determinations [17:09:26] Good point Scott. I guess Fido is an easier name for your dog than the name of my dog that I grew up with which was Benrick Brigadoon. We didn't give him that name by the way. It was the breeder. [17:09:34] LAT : 35.613022 , LON : -58.206688 , DEPTH : 2420.0035 m, TEMP : 3.562 C, SAL : 34.96083 PSU, DO : 8.13747 mg/l [17:09:52] Thanks Kevin. [17:09:59] @Chris: my dog's name is Nui. Polynesian! [17:10:14] @Chris, and how you called him in case or.. emergency? [17:10:26] Benny [17:11:09] Nui is hard name to call aloud [17:11:33] oooo! [17:12:14] Evil creature in view. [17:12:51] Evoplosoma [17:12:58] a definite coral predator [17:13:15] ah! [17:13:17] Gotta go watch the final lap of the Tour de France to see if the Manx Missle can beat the record. Back soon. [17:13:19] Should be named Evilplosoma [17:13:37] thank you! [17:13:40] @scott, you see, it has additional attachment, this bamboo? [17:13:56] :-) muhahha! [17:14:34] LAT : 35.613048 , LON : -58.206731 , DEPTH : 2416.8125 m, TEMP : 3.5495 C, SAL : 34.96024 PSU, DO : 8.11595 mg/l [17:14:59] maybe it has multiple generation of fossil corals [17:15:35] @kevin - do you think the blacker face of the rock look igneous? [17:15:54] looks like it may have been a exposed flow based on the crust on top, like a giant pillow that split open [17:18:11] more pests below [17:18:17] yeah, looks like a boulder from sirius [17:18:21] left [17:19:35] LAT : 35.613011 , LON : -58.206651 , DEPTH : 2414.1603 m, TEMP : 3.5356 C, SAL : 34.96087 PSU, DO : 8.15465 mg/l [17:21:55] @Tina: did not see what you are referring to, but I have seen on multiple occasions colony branches creat addiitonal holdfsts where they contact the substrate. [17:22:51] This one might actually be relocating. Arms are down..and awkwardly moving [17:23:12] Iand arms are damaged and regenerating [17:24:11] hexacts but not sure which family [17:24:36] LAT : 35.613047 , LON : -58.206724 , DEPTH : 2412.2986 m, TEMP : 3.52594 C, SAL : 34.96093 PSU, DO : 8.15926 mg/l [17:26:12] Note to Roland: There are huge house sized blocks of carbonate out off Waikiki beach in deep water that were blown out from the explosive eruption of Diamond Head [17:27:48] primnoid [17:28:25] agreed [17:29:03] Not sure about that sponge in the back. [17:29:08] but it is different type of brittlestar [17:29:08] vondawarehamhayes leaves the room [17:29:36] LAT : 35.613105 , LON : -58.206587 , DEPTH : 2412.096 m, TEMP : 3.52538 C, SAL : 34.9604 PSU, DO : 8.17 mg/l [17:30:01] looks like an ophiacanthid ophuroid [17:30:06] Any chance they could get a closer shot of the sponge while they are here? [17:30:25] Not important though [17:31:07] Yes Rhian, that was what I was looking at [17:32:02] They're doing things for video right now, i'm not sure we'll have a chance to see the sponge [17:34:06] interesting, animals do not like these bouders very much.. [17:34:23] bamboo right down [17:34:25] No problem Rhian. [17:34:37] LAT : 35.613163 , LON : -58.206604 , DEPTH : 2408.7202 m, TEMP : 3.51661 C, SAL : 34.96038 PSU, DO : 8.11406 mg/l [17:34:39] actually both sides [17:37:53] Really long tentacles to mouth ratio [17:37:57] I think the brambles may be brambles because they tip into these crevasse areas and then "scramble" to grow in any direction out! [17:38:01] numerous holdfasts [17:38:27] They are often at the bases of rocks in sediment pools. [17:38:27] vondawarehamhayes leaves the room [17:39:37] LAT : 35.613186 , LON : -58.206608 , DEPTH : 2404.4291 m, TEMP : 3.51834 C, SAL : 34.96041 PSU, DO : 8.16188 mg/l [17:43:26] really cool large flow features [17:43:51] Its a rock garden instead of a coral garden [17:44:38] LAT : 35.613252 , LON : -58.206579 , DEPTH : 2397.0493 m, TEMP : 3.5275 C, SAL : 34.96167 PSU, DO : 8.14527 mg/l [17:44:49] In reviewing the primnoid collections we made on the NES, as well as Cairns publications, I know thiknk the earlier primnoid we looked at closely was not a Narella, but rather a Calyptrophora, perhaps C. microdentata [17:45:21] Its also strange to me that there is not a lot of biology here too since there is a large influx of marine snow. [17:46:12] vondawarehamhayes leaves the room [17:47:17] Geodia again? [17:47:33] christophermah leaves the room [17:47:36] recrut [17:48:28] I've been wondering if we are in a current shadow, and how informative it would be to repeat this dive on the east, west and north faces of this plateau. [17:49:03] And we are still a bit deeper than the sweet spot for diversity, which I'd say is shallower than 2100 m. [17:49:19] But some nice stuff down here! [17:49:38] LAT : 35.61331 , LON : -58.206609 , DEPTH : 2392.6885 m, TEMP : 3.51722 C, SAL : 34.96135 PSU, DO : 8.1417 mg/l [17:49:45] It has been pruned! [17:49:53] To give it that shape. [17:50:41] This is the Jasonisis type on the right, different from the colonies on the left. [17:52:21] back on the chat for a while. Looked back and found nice imagery of Antimora rostrata, the Flatnose Codling, aka Blue Antimora. Circumglobal at rise and upper abyssal depths, except replaced in N. Pacific by A. microlepis. These are large cruising near-bottom omnivores (predator/scavengers) - which is true of their shallow water cod relatives. Another good example of black cryptic coloration. But melanophores are expensive to proliferate and maintain, so many deep benthopelagic fishes conserve energy and go white [17:54:17] Interesting info Ken. Thanks. [17:54:39] LAT : 35.613376 , LON : -58.206637 , DEPTH : 2390.3291 m, TEMP : 3.50522 C, SAL : 34.96228 PSU, DO : 8.10897 mg/l [17:54:52] @Ken: great stuff. Keep it coming! [17:56:27] kensulak leaves the room: Replaced by new connection [17:56:59] Good view - thanks. That was very help and informative for situational awareness. [17:57:06] *helpful [17:58:08] vondawarehamhayes leaves the room [17:58:15] what is this colony left? [17:59:15] Oval plated fine tentacles around body?? [17:59:40] LAT : 35.61342 , LON : -58.206575 , DEPTH : 2390.6864 m, TEMP : 3.50712 C, SAL : 34.96035 PSU, DO : 8.15912 mg/l [17:59:53] looked like a polynoid scale worm, not a limpet? [18:00:01] worm indeed [18:00:19] tentacles = parapodia? [18:00:28] I love the small stuff! [18:00:29] but it was a weird colony left [18:00:35] Pilot change [18:00:51] may be another coralliidae [18:01:02] yes I agree Tina, very small plated polyps, good to look at that video again (we were as zoomed in as we could get with the angle) [18:01:10] 2 hours per shift? [18:01:13] christophermah leaves the room [18:01:32] Chris (lead pilot) has a meeting to go to, so changed out [18:02:01] two holes each?in and out? [18:02:40] lovely sponge [18:02:45] Hmmmm [18:02:49] but probably dead [18:03:19] Maybe the odd bamboo coral branches create microturbulance around the anemone allowing it to catch more particulate matter? Not sure how the morphological change would be triggered. [18:04:16] @scott, it is only one clade that produce flower-nests? [18:04:36] We don't even know what the signal to branch is under "normal" conditions, so harder to predict what is happening in these abnormal cases. But in many areas of biology, the abnormal helps to inform the normal. [18:04:40] LAT : 35.613452 , LON : -58.206519 , DEPTH : 2386.8193 m, TEMP : 3.48309 C, SAL : 34.96025 PSU, DO : 8.12872 mg/l [18:05:16] @Tina: as far as I can tell, but I need to go back now and review all the imagery. I'm so surprised at how common it appears out here. [18:05:32] siph [18:06:23]