[08:09:51] haroldcarlson leaves the room [11:32:46] haroldcarlson leaves the room [11:36:48] ***TEST - EX2104 DIVE01*** [11:52:53] test [12:02:32] EX2104_DIVE01 ROV powered off [12:25:33] emilycrum leaves the room [12:56:26] EX2104_DIVE01 ROV Launch [13:05:19] mashkoormalik leaves the room [13:05:58] EX2104_DIVE01 ROV on Surface [13:06:46] EX2104_DIVE01 ROV Descending [13:07:28] LAT : 33.662785 , LON : -60.331673 , DEPTH : 12.6863 m, TEMP : 26.19172 C, SAL : 36.65523 PSU, DO : 5.11871 mg/l [13:12:29] LAT : 33.662058 , LON : -60.331279 , DEPTH : 55.7579 m, TEMP : 21.7785 C, SAL : 36.87395 PSU, DO : 5.42604 mg/l [13:17:29] LAT : 33.661535 , LON : -60.330908 , DEPTH : 177.1146 m, TEMP : 19.7166 C, SAL : 36.67398 PSU, DO : 5.74315 mg/l [13:21:19] faesapsford leaves the room [13:22:30] LAT : 33.661395 , LON : -60.330494 , DEPTH : 335.9319 m, TEMP : 18.77663 C, SAL : 36.64009 PSU, DO : 5.74047 mg/l [13:27:31] LAT : 33.661313 , LON : -60.330368 , DEPTH : 495.2256 m, TEMP : 17.9719 C, SAL : 36.51036 PSU, DO : 5.21459 mg/l [13:28:25] mashkoormalik leaves the room [13:30:19] emilycrum leaves the room [13:32:31] LAT : 33.661253 , LON : -60.330625 , DEPTH : 657.3333 m, TEMP : 15.08783 C, SAL : 35.99886 PSU, DO : 4.70867 mg/l [13:33:06] mashkoormalik leaves the room [13:36:28] scottfrance leaves the room [13:37:31] LAT : 33.661195 , LON : -60.331027 , DEPTH : 822.8008 m, TEMP : 11.66869 C, SAL : 35.48528 PSU, DO : 4.1281 mg/l [13:37:44] ~~ 1 hour until on bottom [13:40:17] thanks! [13:42:32] LAT : 33.661239 , LON : -60.33145 , DEPTH : 971.5846 m, TEMP : 8.55744 C, SAL : 35.21909 PSU, DO : 4.53772 mg/l [13:45:00] faesapsford leaves the room [13:47:33] LAT : 33.661161 , LON : -60.331893 , DEPTH : 1116.6186 m, TEMP : 6.29109 C, SAL : 35.10981 PSU, DO : 5.96684 mg/l [13:52:34] LAT : 33.661221 , LON : -60.332313 , DEPTH : 1257.8776 m, TEMP : 5.42297 C, SAL : 35.07229 PSU, DO : 6.71121 mg/l [13:57:34] LAT : 33.66125 , LON : -60.332794 , DEPTH : 1409.0482 m, TEMP : 4.81554 C, SAL : 35.03141 PSU, DO : 7.14648 mg/l [13:58:27] faesapsford leaves the room [14:02:35] LAT : 33.661235 , LON : -60.333132 , DEPTH : 1557.5379 m, TEMP : 4.50616 C, SAL : 35.00734 PSU, DO : 7.35705 mg/l [14:07:10] faesapsford leaves the room [14:07:35] LAT : 33.661225 , LON : -60.333579 , DEPTH : 1705.582 m, TEMP : 4.33921 C, SAL : 35.02336 PSU, DO : 7.42007 mg/l [14:09:41] Halicreatid? [14:10:48] camera2 has best video now so will comment on that [14:12:35] LAT : 33.661272 , LON : -60.334059 , DEPTH : 1856.8885 m, TEMP : 4.05245 C, SAL : 34.98691 PSU, DO : 7.49999 mg/l [14:12:58] emilycrum leaves the room [14:16:23] Could you please turn on more lights for the main camera? It is very dark now... [14:17:25] Tuscarorid radiolarian in cam 2 [14:17:35] LAT : 33.661393 , LON : -60.334369 , DEPTH : 2001.6766 m, TEMP : 3.78078 C, SAL : 34.96779 PSU, DO : 7.55824 mg/l [14:18:06] thank you [14:22:36] LAT : 33.661472 , LON : -60.334847 , DEPTH : 2151.5707 m, TEMP : 3.68594 C, SAL : 34.96363 PSU, DO : 7.62025 mg/l [14:22:53] dhugal, do not forget to push the button))) [14:23:32] ha ha ;-) [14:24:11] are you pushing my buttons now ;-) [14:25:26] no-no,, but it is my chance always to think about you) [14:25:28] Eukrohnia? [14:25:50] camera 3 for dive intro momentarily [14:27:36] LAT : 33.661581 , LON : -60.335158 , DEPTH : 2297.7008 m, TEMP : 3.55979 C, SAL : 34.96621 PSU, DO : 7.57363 mg/l [14:27:49] noellehelder leaves the room [14:28:04] myctophid [14:29:39] video to choppy on my end to annotate midwater or join call sorry [14:29:43] too [14:30:00] faesapsford leaves the room [14:30:38] kensulak leaves the room [14:31:21] rhian, I also have problems to join the conference, you can just mention us, that we are here silently? [14:31:25] good morning! [14:32:04] Dhugal Lindsay from Japan Agency for Marine-Earth Science and Technology (JAMSTEC) looking for jellies [14:32:12] Hey - Peter, good morning to you [14:32:32] good morning [14:32:36] LAT : 33.661632 , LON : -60.335446 , DEPTH : 2446.5511 m, TEMP : 3.37662 C, SAL : 34.9541 PSU, DO : 7.60523 mg/l [14:33:44] morning folks [14:33:57] Hi Kasey [14:34:49] Good work getting in the water with the bad weather and everything [14:34:53] I'll be on and off line today ... higher vertebrates here at home need trip to the vet ... not me ... dog and cats. [14:35:03] Some real psychedlic action on my screen as we zoom in on the map! [14:35:30] Peter, good luck for cats and dogs [14:35:36] good luck with the pets! [14:36:26] Thanks! [14:36:29] Looks impressive at this exaggeration! [14:36:58] Hi all! I'm a NOAA intern working with Dr. Waller. [14:37:10] Welcome Harold. [14:37:34] great plan. we are chosing north side because of currents? [14:37:37] Hi Harold [14:37:38] LAT : 33.661701 , LON : -60.335474 , DEPTH : 2583.5444 m, TEMP : 3.27855 C, SAL : 35.00577 PSU, DO : 7.583 mg/l [14:37:44] G'day Harold [14:38:12] Hi Nicole. Long time no see. [14:38:16] north side if preferable in terms of recovering the vehicles if the weather gets worse [14:39:08] mysid? [14:39:51] Radiolarian and a mashed up chaetognath [14:40:26] 30 m from bottom [14:41:11] Hi all! I'm an intern with NOAA OER for the summer working with the expedition coordinator team [14:41:29] good morning all [14:41:49] see bottom [14:42:00] Coming up on midnight here in Japan. Good evening to all ;-) [14:42:37] LAT : 33.66118 , LON : -60.335748 , DEPTH : 2583.0049 m, TEMP : 3.14897 C, SAL : 34.95996 PSU, DO : 7.35462 mg/l [14:44:08] faesapsford leaves the room [14:44:11] EX2104_DIVE01 ROV on Bottom [14:44:39] kensulak leaves the room [14:45:07] Ciaralarence leaves the room [14:45:11] Some odd dark stalk-like structures to upper left... [14:45:33] [I know we are still settling out - just making notes] [14:46:09] :) [14:46:26] There were 3 on a single rock [14:46:27] uncooperating fish [14:46:38] Synaphobranchid [14:46:56] I like Tina's name better [14:47:29] Anotyher black stalk right ahead [14:47:38] LAT : 33.661127 , LON : -60.335738 , DEPTH : 2592.8937 m, TEMP : 3.10058 C, SAL : 34.95636 PSU, DO : 6.57818 mg/l [14:47:42] oh, you can use incooperating Synaphobranchid) [14:48:18] emilycrum leaves the room [14:48:22] The black stalks I suspect are dead sponges. [14:48:43] kaseycantwell leaves the room [14:51:04] coral stalk? [14:51:05] and on 1 oclock there are whitish things [14:51:45] nicolemorgan leaves the room [14:51:59] at the bigger picture [14:52:18] and apaprently dead Chrysogorgia [14:52:38] LAT : 33.661053 , LON : -60.33576 , DEPTH : 2591.2724 m, TEMP : 3.11876 C, SAL : 34.93516 PSU, DO : 6.99525 mg/l [14:53:49] noellehelder leaves the room: Replaced by new connection [14:54:24] the long black things look like fossil octocoral bits, what Adkins and others called "twigs" years ago. [14:54:30] Y shape on the bottom left [14:56:20] Hi guys, anychance we can get a sample of manganese crust p[lease? [14:56:26] Les - Hmm - I was guessing urchin spines? [14:56:49] @Ken, also possible [14:57:35] some shells, couple of pteropods.. [14:57:39] LAT : 33.660917 , LON : -60.335961 , DEPTH : 2589.2136 m, TEMP : 3.12461 C, SAL : 34.9275 PSU, DO : 7.32768 mg/l [14:58:43] bramleymurton leaves the room [15:00:52] unusual alternating polyp arrangement [15:02:38] kensulak leaves the room [15:02:38] LAT : 33.66096 , LON : -60.335838 , DEPTH : 2586.1001 m, TEMP : 3.12684 C, SAL : 34.94357 PSU, DO : 6.32932 mg/l [15:03:13] I don't think we have seen this one before [15:03:18] @Rhian: did you see the small red/orange colony behind the Keratoisis? [15:03:27] kimberlygalvez leaves the room [15:03:33] and still no fish ... just say'in [15:03:43] bramleymurton leaves the room [15:04:22] well, there was one.... [15:04:23] nicolemorgan leaves the room [15:05:12] yes scott! [15:05:16] I meant there were no more fish ... I'll try for greater clarity. [15:05:52] well, we are in the middle of the basin [15:06:56] it was not good projection( [15:07:09] kimberlygalvez leaves the room: Replaced by new connection [15:07:39] LAT : 33.660966 , LON : -60.33588 , DEPTH : 2584.1413 m, TEMP : 3.14044 C, SAL : 34.93396 PSU, DO : 7.19995 mg/l [15:07:43] Bathypathes was the most frequently documented coral in our study of the NES&CR seamounts [15:07:48] Is that a sponge or...? [15:07:57] Top view of an Iridogorhia? [15:08:03] Sponge! [15:08:08] @Les - yes, this is expected - deep and oligotrophic surface waters - like Bahamas dives - low encounter rates. [15:08:44] noellehelder leaves the room [15:09:53] the crusts are really interesting and not sampled from anywhere nbear here before - so a sample of the crust would be really useful! [15:10:44] is it sponge? [15:10:50] huge one? [15:11:10] bramleymurton leaves the room [15:11:57] yes, i think its a mostly dead sponge [15:12:39] LAT : 33.660887 , LON : -60.335743 , DEPTH : 2583.1902 m, TEMP : 3.13648 C, SAL : 34.94502 PSU, DO : 6.55027 mg/l [15:12:57] all these dead coral stalks might suggest a pulse recruitment event a long, long, time ago and then everything died of old age with no new recruitment in the meanwhile. Saw some equivalent at Twin Banks, NWHI [15:13:04] bramleymurton leaves the room: Replaced by new connection [15:16:23] FeMn crusts tend to grow at ~~1 mm / Ma [15:17:02] kaseycantwell leaves the room [15:17:40] LAT : 33.660964 , LON : -60.335733 , DEPTH : 2583.1779 m, TEMP : 3.13554 C, SAL : 34.94216 PSU, DO : 6.4851 mg/l [15:18:40] that sample looks well rounded [15:19:14] haroldcarlson leaves the room [15:19:22] Is someone on board recording samples on SeaTube, or should we do that on shore? [15:22:04] upasanaganguly leaves the room [15:22:17] We're trying, but if you'd like to record from shore you'd likely get more accurate time captures [15:22:41] LAT : 33.660875 , LON : -60.33573 , DEPTH : 2577.7387 m, TEMP : 3.1498 C, SAL : 34.92504 PSU, DO : 6.42041 mg/l [15:24:28] there are a dozen or two of the dead stalks here [15:24:47] Feeding seastar [15:24:58] stevenauscavitch leaves the room [15:25:24] @scott can you speak a bit louder? [15:25:28] looks like it is eating a carnivorous sponge [15:25:41] Agree @Scott [15:25:44] poor thing( [15:26:14] where is Chris Mah? [15:26:19] here he is [15:26:32] Not much food in this area, so maybe diet is stretched [15:26:56] bramleymurton leaves the room [15:27:14] there was a bamboo nearby [15:27:42] LAT : 33.660855 , LON : -60.335701 , DEPTH : 2577.6299 m, TEMP : 3.13476 C, SAL : 34.93769 PSU, DO : 6.21003 mg/l [15:29:16] the sponges are probably Asbestopluma [15:29:41] Purple polychaete worm on the sponge [15:30:39] Might this group of seastar may have same keystone role as Pisaster in shallow Pacific Northwest? Wild hypothesis but potential slow motion interactions in the deep ocean? [15:30:41] now I know why cladorhyzidae are sitting near the vents, just because it so toxic there that none of pest star can reach them. so they can survive [15:31:09] faesapsford leaves the room [15:31:13] @Tina, haha [15:31:42] bramleymurton leaves the room [15:31:42] we're going to start moving up the track [15:31:44] @Peter, keystone role would mean there is a limiting resource, like space... not here [15:31:58] kensulak leaves the room [15:32:42] LAT : 33.660773 , LON : -60.335623 , DEPTH : 2574.1439 m, TEMP : 3.14964 C, SAL : 34.92512 PSU, DO : 6.78639 mg/l [15:32:58] all the dead coral stalks seem to be about the same size which also argues for the idea of a pulse recruitment [15:33:05] keystone would mean they have an outsize role in structuring community in relation to numbers/biomass [15:33:34] I suppose that might apply to reduction of sponge biomass [15:34:17] Yes - I was thinking sponges and corals (examples from other areas) [15:34:54] I don't think the seastars were abundant even to reduce the coral biomass much [15:35:09] I am not sure which seapen it is, Protoptilum maybe [15:35:37] bramleymurton leaves the room [15:36:55] actually, may be well Protoptylum. Antoptylum nornmally crooked and it was shadaw of sclerites [15:37:34] arborescent forams? [15:37:43] LAT : 33.660818 , LON : -60.335555 , DEPTH : 2570.4407 m, TEMP : 3.16184 C, SAL : 34.9342 PSU, DO : 7.11738 mg/l [15:38:00] @Upasana: your guess is better than my guess! [15:38:24] haroldcarlson leaves the room [15:38:26] Agree with forams, also hydroids [15:38:32] agree with Scott [15:38:39] thr rubble has a lot of FeMn crust, looks ~~10mm thick or more, meaning the rubble fell 10s millions of years ago.... [15:38:54] but these two things right I do not know [15:41:39] If Shirley was here she'd say that if you do know growth rates of sponges, you'd be at the forefront of the sponge community reserach! [15:41:47] because they have 3 m long spicules - [15:42:44] LAT : 33.660719 , LON : -60.335489 , DEPTH : 2561.4387 m, TEMP : 3.16278 C, SAL : 34.9481 PSU, DO : 6.8216 mg/l [15:43:32] A lot of rock debris [15:44:08] need a close look at polyp to get clade [15:44:47] B1 clade [15:46:06] rocky seamount terrain - pretty good habitat for stalked inverts - much less so for benthopelagic fishes. maybe later over expanse of soft sediment [15:46:10] shows how thick the coenenchyme tissue is [15:46:11] nicolemorgan leaves the room [15:46:41] kensulak leaves the room [15:47:26] interesting also that the polyps closed without the coral being touched... thruster wash? [15:47:45] LAT : 33.660756 , LON : -60.335382 , DEPTH : 2557.4194 m, TEMP : 3.22014 C, SAL : 34.92071 PSU, DO : 6.98053 mg/l [15:48:00] Anthomastus #1 [15:48:03] anthomastus [15:48:12] Cue Tina! [15:48:15] haroldcarlson leaves the room [15:48:21] I whant this Anthomastus! [15:48:43] :) [15:48:47] Scott!!! [15:49:00] it looks like tahinodus but it is not [15:49:46] Nice ledge of coral ahead [15:49:52] there are twigs in the sediment... those are bamboo pieces [15:49:58] Possible Corallium on right [15:50:24] Louise has similar looking from Ireland but not from here [15:50:42] and see, there are two more [15:50:46] Perhpas bathyrubrum - a species described by Les & his student from NES [15:51:57] not very pink... might that be the lights? [15:52:08] thanks Les, I was wondering if those were coral twigs - interesting that they are encrusted by FeMn, wondering when the coating accumulated (before or after landing in the sediment) [15:52:18] Synaphobranchus [15:52:26] kimberlygalvez leaves the room [15:52:45] Scott, can you ask about Anthomastus, if it indeed tahinodus it is werd. [15:52:47] LAT : 33.660621 , LON : -60.335374 , DEPTH : 2549.8838 m, TEMP : 3.23127 C, SAL : 34.9263 PSU, DO : 7.15549 mg/l [15:53:00] What is it passing over? [15:53:08] Perhaps a broken echinoid shell [15:53:30] Look at thta Anthomastus on the twig! [15:53:36] Balancing act [15:53:42] mysid [15:53:44] i saw it too, but we headed out [15:53:57] Chrysogorgia [15:54:00] is twig a the technical term...because I am going to use it now [15:54:16] I think a piece of the "keratoisis" should be collected. I don't think we have seen this one before [15:54:48] it LOOKS like [15:54:49] Check out how planar that isidid is behind this Anthomastus (if we pan out without moving) [15:55:03] it looks like tahinodus [15:55:32] but tahinodus is from Pacific, like French Polynesia and Hawaii [15:55:58] ta-hi-nodus [15:56:15] can we collect it?)) [15:56:34] they're tricky to collect in one piece [15:56:45] the chryso looks like C. abludo, described from CR seamounts at this depth [15:57:02] If we go to collect, I suggest going for the other one on the right, since it is growing on a twig, the twig can be plucked to preserve the shape of the Anthomastus [15:57:03] Ciaralarence leaves the room [15:57:46] LAT : 33.660684 , LON : -60.335378 , DEPTH : 2548.9817 m, TEMP : 3.20494 C, SAL : 34.94836 PSU, DO : 7.23425 mg/l [15:57:48] but they are normally taking off [15:58:22] Jasonis like coral in the back on the left [15:59:23] nice botriodal textures to the FeMn crusts [16:00:06] seeing a lot more coral debris on this outcrop [16:02:14] haroldcarlson leaves the room [16:02:39] these are very watery. Rhian, put more alcohol. and alcohol is good to preserve all the animal. if taking for genetics - take polyp or piece from the base [16:02:41] bramleymurton leaves the room [16:02:47] LAT : 33.660707 , LON : -60.335272 , DEPTH : 2547.6489 m, TEMP : 3.21602 C, SAL : 34.95282 PSU, DO : 7.22466 mg/l [16:04:12] George Matsumoto aks: didn't this genus get renamed to Heteropolypus? [16:04:20] *asks [16:04:27] peterauster leaves the room [16:05:08] no. this is another genus, but currently Anthomastus [16:05:25] bramleymurton leaves the room [16:05:58] freshly dead bamboo [16:06:30] Yellow fuzz on that skeleton... hydroids? [16:06:40] Was thinner than zoanthid fuzz. [16:07:48] LAT : 33.660541 , LON : -60.335193 , DEPTH : 2535.4961 m, TEMP : 3.23232 C, SAL : 34.94495 PSU, DO : 6.81361 mg/l [16:08:29] dhugallindsay leaves the room [16:12:26] Corallimorph! [16:12:30] On the twig [16:12:44] we will go back to the bamboo [16:12:48] LAT : 33.660583 , LON : -60.335115 , DEPTH : 2529.4686 m, TEMP : 3.26637 C, SAL : 34.9399 PSU, DO : 7.19356 mg/l [16:12:55] bramleymurton leaves the room [16:13:14] I don't think the whip is a bamboo, which is why I want to have a look. [16:13:24] It may be a primnoid whip. [16:14:14] haroldcarlson leaves the room [16:14:40] about mm per million years [16:15:37] hydroids on there [16:16:40] I take it back - dead isidid [16:16:44] No need to stop [16:17:14] Nice barnacle on this colony [16:17:48] LAT : 33.660493 , LON : -60.335059 , DEPTH : 2529.0764 m, TEMP : 3.29729 C, SAL : 34.94444 PSU, DO : 7.32951 mg/l [16:18:22] Glyptelasma, the barnacle [16:20:19] how to tell Aldrovandia from Halosaurus? [16:21:00] and it was parasite? [16:21:49] Halosaur ... likely Aldrovandia sp. [16:22:13] @Tina, I think it is the shape of the face? I call Aldrovandia, old blue nose.... [16:22:37] B1 clade again [16:22:41] Is it that Aldrovandia do not have scales on their head while halosaurus do? [16:22:49] LAT : 33.660287 , LON : -60.335056 , DEPTH : 2519.8378 m, TEMP : 3.36679 C, SAL : 34.93333 PSU, DO : 6.92764 mg/l [16:23:28] Geodia? [16:23:37] this one on a dead stalk too... [16:25:24] gordonrees leaves the room [16:26:24] recently dead bamboo fallen over [16:26:45] watch for a star [16:27:15] some of the rocks look very blocky, as though they are derived from dikes or sheet-flows [16:27:40] As the dive progresses if we have the space, a collection from one of these branching bamboo corals would be warranted. a) we don't know what it is, and b) it is common and therefore could be considered "characteristic" of the community. [16:27:49] LAT : 33.660332 , LON : -60.334948 , DEPTH : 2507.7018 m, TEMP : 3.37217 C, SAL : 34.94741 PSU, DO : 6.82079 mg/l [16:28:02] corallium? [16:28:13] Corallium for sure [16:28:29] more bathyrum, methinks [16:28:37] Aye [16:28:39] sweet [16:29:07] But I will point out to the guy who described the species that the spelling is bathyrubrum! haha [16:29:39] Semi-dead sponge [16:30:02] aye, indeed, the difference between speaking and typing! [16:30:23] we're setting up to collect bamboo [16:30:32] I sure wish some taxonomists would come up with shorter names! [16:30:41] Hah! [16:31:03] @Les: re collection here. We're looking for the thick tissue B1 clade, right? [16:31:19] Swollen node [16:32:50] LAT : 33.660315 , LON : -60.334995 , DEPTH : 2503.3598 m, TEMP : 3.39416 C, SAL : 34.96341 PSU, DO : 7.68019 mg/l [16:33:49] bramleymurton leaves the room [16:33:59] looks like polyps are alternating [16:34:27] My video is jumping quite a bit so I suspect I am delayed relative to what you are seening. [16:34:28] yeah that would be the one [16:35:07] many dead twigs here too [16:35:22] *seeing [16:35:35] name for this sample, potential ID? [16:35:40] Yikes. I hope someone goes in afterward and cleans up all our grammar and typos! ;-) [16:35:52] Name: Keratoisis B1 clade [16:36:11] Thanks! [16:36:26] Very interesting multi-furcation branching at the base of the colony. [16:36:58] If that were more 3-dimensional, it would be the sort of thing you see on Acanella (this is most definitely not Acanella, though) [16:37:19] bramleymurton leaves the room [16:37:49] Nice clipping, good spot, re: branch node [16:37:52] LAT : 33.660185 , LON : -60.334951 , DEPTH : 2503.7289 m, TEMP : 3.3991 C, SAL : 34.9626 PSU, DO : 7.25611 mg/l [16:38:01] how far we are from Mid-Atlantic Ridge? [16:38:25] we're still east of Corner Rise - almost below nashville [16:38:49] about 1600 km or so [16:39:20] It isn [16:39:33] Hi Cindy! [16:39:58] we should take a close look at the one in the background too [16:40:43] It isn't easy to tell from here, but that crust looks very thin so far. If it gets thicker, will a rock be collected to document the thickness and study the metal quality? Thinking of deep sea mining, of course. [16:40:48] peterauster leaves the room [16:41:11] Hi Tina! [16:41:17] we collected a rock at the start of the dive! [16:41:37] we will hopefully try to collect one further on in this transect as well [16:41:40] BTW, re the Geodia sponge we've been seeing. Keep in mind Geodia is on the Connectivity list, so towards the end of dive it wold be a good sampling target if there is still space. [16:41:53] Would it be good to discuss mining issues at seamounts in the discussions that the public hears? [16:42:02] would that even fit in the biobox?? [16:42:52] LAT : 33.660104 , LON : -60.33495 , DEPTH : 2490.4289 m, TEMP : 3.37695 C, SAL : 34.9627 PSU, DO : 7.12317 mg/l [16:44:16] Halosaur in the background ... right side ... head down and drifting [16:45:23] do we have sponge specialist here? [16:45:48] this looks like our species C. bayeri, but could also be C. niobe [16:46:34] niobe has worm tunnels [16:47:11] love the little anemones [16:47:41] haroldcarlson leaves the room [16:47:53] LAT : 33.660039 , LON : -60.334982 , DEPTH : 2485.5761 m, TEMP : 3.39593 C, SAL : 34.95209 PSU, DO : 6.44031 mg/l [16:48:19] yes, on corallium and also on Candidella [16:49:27] Ah, yes: C. niobe. Thanks Les. I have to relearn all these names! [16:50:35] Isn't that what Jessica Rabbit said? [16:50:42] I was just drawn this way... [16:51:18] Zoanthid and stoloniferous overgrowth on skeleton [16:52:25] bramble corals [16:52:41] This bamboo coral is different from the one we collected. This is the one with more acute branch angles [16:52:53] LAT : 33.66005 , LON : -60.334961 , DEPTH : 2479.9482 m, TEMP : 3.41952 C, SAL : 34.95728 PSU, DO : 7.24106 mg/l [16:52:57] the brambles like to grow on the old coral debris [16:53:18] True. Did you see some brambles in there lLes? [16:53:39] looked like on colony just before we moved [16:53:53] Recall that the brambles we collected from Nashville Seamount had us confused for the longest time because... they had no nodes! [16:54:27] ye! [16:54:33] yeS! [16:54:37] Beeee-you-tiful [16:55:36] rhian, can we look at hexa-sponge closely? [16:55:57] interesting dearth of primnoids... [16:56:15] Candidella should be here at this depth [16:56:45] tina - will relay [16:57:31] maybe get a smaller one! [16:57:53] LAT : 33.659861 , LON : -60.334846 , DEPTH : 2470.1209 m, TEMP : 3.39194 C, SAL : 34.96099 PSU, DO : 6.96182 mg/l [16:57:59] this is smaller than many we've seen! [16:58:15] bramble bamboo behind it [16:58:38] Bramble! [16:58:45] bramble also in lower left [16:58:53] Maybe they will come up together... [17:00:16] I think the brambles are in three different clades [17:00:30] Looks like the one from Nashville [17:00:35] chat-admin leaves the room: Replaced by new connection [17:00:45] Agreed Les. The node-less one. [17:00:47] I don't think that its not this one, but don't some sponges mimic corals [17:01:12] tinamolodtsova leaves the room [17:01:12] we will know if it gets disturbed during the sponge collection and the polyps contract [17:01:20] Hi everyone :-) [17:01:33] Some of the cladorhizid sponges have branching structures that could fool one at first glance into thinking they might be a coral. [17:01:42] haroldcarlson leaves the room [17:02:03] Hi Joana! Did you see the vase sponge earlier? [17:02:26] the sponge being collected is a Geodia megastrella (although we suspect G. megastrella may be a species complex) [17:02:28] That is a healthy sized sponge [17:02:30] bramleymurton leaves the room [17:02:53] LAT : 33.659951 , LON : -60.334849 , DEPTH : 2470.5247 m, TEMP : 3.39721 C, SAL : 34.95737 PSU, DO : 6.1567 mg/l [17:03:14] Hi Scott, no I didn't. I'll look for it [17:03:42] I was hoping the bramble would be attached to the same debris as the sponge, but it looks like that is not the case. [17:04:07] Joana, can you look at Farreids here closely? [17:04:12] me too.... [17:04:19] @Joana any more specific of an idea on this sponge we've sampled? [17:04:32] *ID vs idea [17:04:36] You don't need to go back to collect the bramble. We can make way instead. [17:05:11] @Kasey: she provided the ID Geodia megastrella [17:05:16] thanks - I don't think we will either, but there will be more [17:05:26] missed that thanks [17:05:46] @Rhian: don't you know that is the curse! If you say there will be more, there won't be more! :-) [17:06:31] Is there anything known about the growth rate of bamboo coral? [17:06:36] I am pretty sure we have seen that bramble before, just needed a lot at contracted polyp [17:06:45] we're already on more samples than we had planned.....:) [17:07:20] it's hard not to collect! [17:07:35] @Joana - there is the vase sponge avain [17:07:39] @Kasey, VERY hard... [17:07:54] LAT : 33.659723 , LON : -60.334834 , DEPTH : 2464.6406 m, TEMP : 3.39671 C, SAL : 34.95391 PSU, DO : 7.22921 mg/l [17:08:28] just think about how old the specimens are....that makes it easier to leave them in peace sometimes [17:08:38] @Kasey, from a distance it looks like a glass sponge, something like Asconema perhaps [17:08:52] @Harold: bamboo corals are pretty well studied for age (I mean relative to other corals). There are several papers out there. [17:09:11] @Cindy, yeah, that too... but then I need to know who things are... [17:09:23] @Cindy: agreed. I have nightmares at times. But it is why we try to collect just a piece. [17:09:27] of course! [17:10:28] some day it would be interesting to know what the effect of the collection is on the coral... is the wound handled or not? [17:10:31] peterauster leaves the room [17:11:00] 2nd one actually. I saw one earlier. [17:11:03] that pile of dead coral was loaded with bramble corals [17:11:20] beautiful, but it looks like it has been ripped [17:11:53] wasn't there some impressive recovery of coral tissue after bits were damaged by the DWH oil spill? Depends on the species and circumstances, I imagine. [17:11:59] all we need now are the Iridogorgia to make this look like the assemblage from Nashville seamount [17:12:18] The brambles on Nashville Seamount were collected in the 2200 m range, so similar to this depth zone. Genetics show they are in the J clade of Keratoisididae [17:12:31] megancromwell leaves the room [17:12:54] LAT : 33.659833 , LON : -60.334818 , DEPTH : 2463.8369 m, TEMP : 3.39016 C, SAL : 34.95766 PSU, DO : 7.40684 mg/l [17:13:33] @Cindy, yeah, and we do also see overgrowth of bamboo tissue on things like barnacles that had settled on the bare axis, so regrowth might be likely [17:13:48] J3 clade? [17:13:56] @Cindy: yes, species dependant, and also related, I believe, to presence of associates on the colony. [17:14:17] @Les: J3 - you mean this large fan? [17:14:28] So many bamboo corals today! [17:14:56] @Chris via others: do brisingids swim? If so, do they swim like comatulids/crinoids? [17:15:34] I don't think so Cindy, though Chris would know if there are some smaller species that do [17:15:40] joanaxavier leaves the room [17:16:14] hi Cindy! [17:16:24] hey Bram! [17:17:07] @Bram....doesn't look minable, does it, this bitty seamount? [17:17:13] so this is more flat sedimented part? [17:17:19] Yeah @Scott, the one that was being looked at while @Chris was talking [17:17:24] I don't believe I've ever seen a brisingid swim... [17:17:28] joanaxavier leaves the room [17:17:54] LAT : 33.659734 , LON : -60.334767 , DEPTH : 2459.0375 m, TEMP : 3.41003 C, SAL : 34.9461 PSU, DO : 7.26556 mg/l [17:17:55] dead Corallium [17:18:11] do folks like having the 3D tracking on shore on feed 3? [17:18:22] want to keep it or go back to the quad screen? [17:18:47] I think this is a Munida (or related), and this group, unlike Chirostylids, are not coral associated, but will climb over any substrate. [17:19:07] amphipods on stalks [17:19:15] podocerids [17:19:20] @Kasey: I don't have the resources today to look at multiple screens, so I've been only on camera 1 since the dive began. [17:19:46] J3 clade [17:19:50] We'd be naming an awful lot of seamounts "Bamboo Coral Seamount" if abundance is your metric! [17:20:00] bramleymurton leaves the room [17:20:01] @scott - thanks [17:20:09] any throughts from others? [17:20:10] parasites [17:20:37] agree @Scott, good explanation [17:21:14] I fo not think about anemone, if anemone or zoanthids, they are agressive [17:21:18] haroldcarlson leaves the room [17:21:40] the response to the anemone seems to happen more in this clade than any other [17:22:12] ok.. [17:22:25] it is werd. [17:22:55] LAT : 33.659569 , LON : -60.334892 , DEPTH : 2461.0059 m, TEMP : 3.37928 C, SAL : 34.97816 PSU, DO : 7.15481 mg/l [17:23:13] think they are settling in naked tissue.. more probably [17:23:23] As @Tina noted, the anemone is aggressive, so can make the coral grow that way [17:24:00] leave a camera for 50 years....haha... [17:24:06] any benefit to the coral? or to the anemone? or just an aberration with no poisitive effect? [17:24:10] Exactly! [17:24:12] box for a ring [17:24:17] joanaxavier leaves the room [17:24:30] Interesting idea Tina. [17:25:34] normally, intensive growing and excessive branching are response to polynoid polychaetes [17:25:38] @Cindy: I see a benefit to the anemone in terms of being up above the botom. The wierd branching by the coral I see as the same sort of response of a pruned plant/tree to growing toward sun (in this case growing toward uninterupted current) [17:26:17] smoothing of the seafloor like this also indicates quite thick FeMn crust (>10cm) -you can see from the botryoidal textures and the gentle undulations of the crust [17:26:39]