[07:03:45] celsodomingos leaves the room [07:53:50] EX2206_DIVE02 ROV powered off [08:24:47] kaseycantwell leaves the room [09:38:33] DIVE02 test message from Okeanos Explorer [09:53:03] EX2206_DIVE02 ROV powered off [10:13:47] rachelgulbraa leaves the room [10:16:28] EX2206_DIVE02 ROV Launch [10:31:57] EX2206_DIVE02 ROV on Surface [10:32:44] EX2206_DIVE02 ROV Descending [10:33:14] rachelgulbraa leaves the room [10:33:44] daphnecuvelier leaves the room [10:34:11] LAT : 37.35597 , LON : -24.382555 , DEPTH : 25.2787 m, TEMP : 20.65165 C, SAL : 36.31394 PSU, DO : 7.47361 mg/l, TURBIDITY : 0.7875 FTU [10:39:11] LAT : 37.356162 , LON : -24.38232 , DEPTH : 53.6265 m, TEMP : 18.5402 C, SAL : 36.28973 PSU, DO : 7.7179 mg/l, TURBIDITY : 0.8669 FTU [10:39:47] rachelgulbraa leaves the room [10:44:12] LAT : 37.356108 , LON : -24.382231 , DEPTH : 130.7398 m, TEMP : 16.33488 C, SAL : 36.2406 PSU, DO : 7.15512 mg/l, TURBIDITY : 0.8974 FTU [10:45:33] good morning Carlos! [10:48:26] Hi Deb, good morning! [10:49:13] LAT : 37.355528 , LON : -24.381962 , DEPTH : 279.2815 m, TEMP : 14.41985 C, SAL : 35.92311 PSU, DO : 6.81415 mg/l, TURBIDITY : 0.928 FTU [10:51:41] Bom dia everyone! [10:51:53] Bom dia! [10:54:13] LAT : 37.355012 , LON : -24.382083 , DEPTH : 433.5757 m, TEMP : 12.77179 C, SAL : 35.68021 PSU, DO : 6.63984 mg/l, TURBIDITY : 0.9402 FTU [10:59:14] LAT : 37.354427 , LON : -24.382151 , DEPTH : 585.8352 m, TEMP : 11.56048 C, SAL : 35.55762 PSU, DO : 6.32235 mg/l, TURBIDITY : 0.9341 FTU [11:03:30] Just passed a gorgeous Solmissus narcomedusa [11:03:38] Bom dia! [11:04:15] LAT : 37.354033 , LON : -24.382243 , DEPTH : 737.6481 m, TEMP : 9.9739 C, SAL : 35.48637 PSU, DO : 5.92884 mg/l, TURBIDITY : 0.9402 FTU [11:05:16] Bom dia Allen, we missed that unfortunately. [11:06:04] Hi All, Bom Dia – from the geological perspective the idea is to see what is the composition/structure of the geological sequence along the steep wall (fault scarp) and if possibly collect samples [11:06:33] ideally one sample at the bottom and one at the top – or from other interesting things we see in between [11:06:51] as dives are always a surprise (like yesterday) [11:07:02] @Allen, tomorrow will be our water column dive, so I imagien we will see lots of exquisite planktonic life forms. Hope you can join us! [11:08:16] allencollins leaves the room [11:09:15] LAT : 37.353962 , LON : -24.382538 , DEPTH : 809.3995 m, TEMP : 9.71051 C, SAL : 35.48689 PSU, DO : 5.94506 mg/l, TURBIDITY : 0.9402 FTU [11:12:32] EX2206_DIVE02 ROV on Bottom [11:13:23] Thanks for that notice Joana. I have some lab work planned for tomorrow with an intern, but will try to keep a laptop nearby streaming. You and Deb are doing a great job with the narrating! [11:14:16] LAT : 37.354019 , LON : -24.382381 , DEPTH : 843.1011 m, TEMP : 8.5965 C, SAL : 35.44657 PSU, DO : 6.21988 mg/l, TURBIDITY : 0.9341 FTU [11:15:26] The Formigas bank is a former island sitting on the rift shoulder and that is being destroyed by extentional tectonics of the rift [11:15:31] it is about 4 Ma [11:15:59] Hello all [11:16:03] good morning everyone! [11:16:14] we are diving in the north slope of the rift, though [11:16:46] copy that, thank you! [11:16:47] rachelgulbraa leaves the room [11:19:16] LAT : 37.354021 , LON : -24.382469 , DEPTH : 842.8419 m, TEMP : 8.57016 C, SAL : 35.45743 PSU, DO : 6.23614 mg/l, TURBIDITY : 0.928 FTU [11:19:20] carlosdominguezcarrio leaves the room [11:21:50] Thanks, Ricardo. Sorry I keep mangling your last name. [11:22:09] daphnecuvelier leaves the room [11:22:12] I was referring to the Formigas Bank – we are, however, diving in the north slope of the rift valley [11:22:33] (no problem about the name :-) ) [11:24:16] LAT : 37.354039 , LON : -24.382498 , DEPTH : 842.473 m, TEMP : 8.6062 C, SAL : 35.44704 PSU, DO : 6.21112 mg/l, TURBIDITY : 0.9402 FTU [11:26:10] Hoplosthetus mediterraneus I guess [11:29:17] LAT : 37.354107 , LON : -24.382463 , DEPTH : 842.9944 m, TEMP : 8.57409 C, SAL : 35.44517 PSU, DO : 6.20239 mg/l, TURBIDITY : 0.9402 FTU [11:29:25] hydrocorals? or?? [11:29:47] Hemicorallium tricolor [11:30:06] agree Hemicorallium [11:30:29] And niobe [11:30:45] exactly and H. niobe the white one.. [11:31:59] Synapobranchus cf. kaupi [11:32:23] Goniasteridae [11:33:28] javiercristobo leaves the room [11:34:17] LAT : 37.354194 , LON : -24.382135 , DEPTH : 840.8973 m, TEMP : 8.60945 C, SAL : 35.44774 PSU, DO : 6.21455 mg/l, TURBIDITY : 0.9341 FTU [11:36:38] irissampaio leaves the room [11:36:46] connection feel but I guess i said the essential... [11:37:37] that was fantastic = thank you so much. [11:38:19] you are welcome! I will need to leave in about 30 mins, but i will try to join later [11:39:18] LAT : 37.354209 , LON : -24.381898 , DEPTH : 840.1606 m, TEMP : 8.69209 C, SAL : 35.45264 PSU, DO : 6.18358 mg/l, TURBIDITY : 0.9463 FTU [11:41:52] it is a breccia [11:42:07] with biogenic matrix [11:42:23] beautiful at the top of the rock [11:43:23] hydrozoan too Pliobothrus cf. symmetricus [11:43:50] another rock that fell down the slope from shallower waters, it seems [11:44:09] and Primnoid [11:44:15] and hydrozoan [11:44:19] LAT : 37.354226 , LON : -24.381836 , DEPTH : 838.5374 m, TEMP : 8.71471 C, SAL : 35.45041 PSU, DO : 6.19413 mg/l, TURBIDITY : 0.9402 FTU [11:44:41] but is a sedimentary rock with basaltic clasts in a consolidated biogenic matrix [11:45:59] Narella versluysi the white whip primnoid [11:48:48] silica is SiO2 [11:49:18] LAT : 37.354214 , LON : -24.381618 , DEPTH : 838.6513 m, TEMP : 8.75531 C, SAL : 35.45532 PSU, DO : 6.17704 mg/l, TURBIDITY : 0.9341 FTU [11:50:58] irissampaio leaves the room [11:51:00] the coral rubble seems to include other "sub-fossils" – including shallow water shells [11:51:14] such as patella [11:51:22] (limpets) [11:53:38] the rock is probably a breccia but could also be pillows/pillow breccia with interstitial marine sediments [11:54:19] LAT : 37.35428 , LON : -24.381419 , DEPTH : 836.8229 m, TEMP : 8.78975 C, SAL : 35.45476 PSU, DO : 6.17626 mg/l, TURBIDITY : 0.928 FTU [11:54:28] the last boulder seems a large piece of submarine sheet flow or large pillow fragment with carbonate sediment attached [11:55:38] sapata [11:55:56] thomasmorrow leaves the room [11:56:56] it is a common name onboard [11:57:14] but it might be Centroselachus crepidater (not my expertise) [11:58:00] we think is a Dalatias licha [11:59:06] Leptosammia [11:59:20] LAT : 37.354379 , LON : -24.381216 , DEPTH : 837.9959 m, TEMP : 8.59386 C, SAL : 35.44733 PSU, DO : 6.23764 mg/l, TURBIDITY : 0.9402 FTU [12:00:05] Leptopsammia formosa.. [12:00:56] formosa is sometimes named after old name of Taiwan=Formosa... but I don't know for this species [12:00:57] allencollins leaves the room [12:01:36] the white sponge at left would be nice to colect [12:01:50] the old name for Taiwan means "beautiful" or "gracious" in portuguese [12:02:12] we have been calling it Cf. Haliclona magna [12:02:58] also the flabelate Phakellia cf. robusta? it one of our doubts and appears many times [12:03:39] maybe this one is Poecillastra ? [12:03:59] Poecillastra compressa.. possibly [12:04:20] LAT : 37.354363 , LON : -24.381271 , DEPTH : 836.546 m, TEMP : 8.55462 C, SAL : 35.44584 PSU, DO : 6.24577 mg/l, TURBIDITY : 0.9341 FTU [12:04:53] there is always confusion between those two.. Phakellia and Poecillastra [12:06:04] irissampaio leaves the room [12:06:35] it will appear more times for sure along the transect [12:08:29] Haliclona cf. magna [12:09:13] that's what we have been calling it but based in images only [12:09:21] LAT : 37.354379 , LON : -24.381246 , DEPTH : 838.5722 m, TEMP : 8.54351 C, SAL : 35.4449 PSU, DO : 6.22139 mg/l, TURBIDITY : 2.5153 FTU [12:09:50] I'm afraid i will have to leave now – but will try to join later or follow from my phone [12:11:14] ricardoramalho leaves the room [12:11:19] irissampaio leaves the room [12:13:40] irissampaio leaves the room [12:14:21] LAT : 37.354381 , LON : -24.381278 , DEPTH : 839.1443 m, TEMP : 8.52082 C, SAL : 35.44375 PSU, DO : 6.241 mg/l, TURBIDITY : 0.9341 FTU [12:14:42] if the other pice in the rock cmes with the flabelate next to it might be more easy grabing both [12:16:09] amazing! thanks [12:18:15] boca-negra [12:18:58] Helicolenus dactylopterus [12:19:10] :) [12:19:21] LAT : 37.354518 , LON : -24.381018 , DEPTH : 835.1312 m, TEMP : 8.69817 C, SAL : 35.45346 PSU, DO : 6.17661 mg/l, TURBIDITY : 0.9341 FTU [12:19:53] we are trying to make some more progress towards the slope break if we can wait to do more sampling [12:20:11] copy that Thomas [12:20:50] irissampaio leaves the room [12:21:01] Lepidion eques [12:21:33] Bactynectes maravigna [12:21:35] That id was for the fish, the crab is Bathynectes maravigna [12:23:02] are this small black rocks basalts? [12:23:08] these [12:23:27] I think so? I'd assume so if they are coming off the wall. [12:23:47] or maybe not basalt, but of basaltic composition. But if I am wrong, please feel free to correct me. [12:23:49] yes pyroclasts [12:24:22] LAT : 37.354572 , LON : -24.380787 , DEPTH : 821.4629 m, TEMP : 9.09398 C, SAL : 35.46828 PSU, DO : 6.07037 mg/l, TURBIDITY : 0.9463 FTU [12:24:23] irissampaio leaves the room [12:25:07] cool. thanks! [12:25:51] Plexauridae [12:27:29] irissampaio leaves the room [12:28:26] Acanthogorgia [12:28:34] more like Acanthogorgiid [12:28:42] no [12:28:46] acanthogorgia [12:28:50] Acanthogorgiidae [12:28:59] Probably A. armata [12:29:22] LAT : 37.354662 , LON : -24.380652 , DEPTH : 811.5547 m, TEMP : 9.54212 C, SAL : 35.48478 PSU, DO : 5.95365 mg/l, TURBIDITY : 0.9341 FTU [12:30:53] note: I copy Tina Molodtsova's comment on this chat as (Tina). I thought I should mention this. [12:31:29] gastropod to the left??? [12:33:35] (Tina) it is always 50% - Acanthogorgia or not)) [12:33:43] (Tina) it is kind of non-true story they told about blond girls (who believed to be extremely naive and /or stupid) Blond girl was asked "What is probability to meet dinosaur at the street?" Her answer - 50%. Why? to meet or not to meet. 50% [12:33:51] irissampaio leaves the room [12:33:54] (Tina) it is like me with Acanthogorgia) [12:34:23] LAT : 37.354785 , LON : -24.380378 , DEPTH : 790.0999 m, TEMP : 9.65226 C, SAL : 35.4831 PSU, DO : 5.95981 mg/l, TURBIDITY : 0.9341 FTU [12:39:23] LAT : 37.354874 , LON : -24.380197 , DEPTH : 770.0035 m, TEMP : 9.74304 C, SAL : 35.48588 PSU, DO : 5.92077 mg/l, TURBIDITY : 0.9341 FTU [12:40:27] johnreed leaves the room [12:41:59] this must be easy collection [12:42:15] for the blue sponge. (if you want) [12:42:54] can we collect it too? we are in doubt wit H. paupertas... but is just a guess based in anterior records [12:43:48] for the collection request - is it the blue or the yellow? [12:44:04] Ah Joana just said it is the blue [12:44:24] LAT : 37.35494 , LON : -24.380056 , DEPTH : 754.8099 m, TEMP : 9.7966 C, SAL : 35.48583 PSU, DO : 5.94714 mg/l, TURBIDITY : 0.9341 FTU [12:45:05] rachelgulbraa leaves the room [12:45:18] Pilots have been advised to collect the blue sponge if we see it again. Sorry we missed that one, it's difficult with the video delay [12:45:22] we have seen this blue sponge several time since last cruise but everytime it was on the rock. [12:45:44] allencollins leaves the room [12:47:11] yep.. the encrusting sponges are alwyas a problem.. but anyway aren't structural spp. that's way they are always biasing the diversity [12:48:21] coral rubble must be good condition for sampling the encrusting sponges!! [12:48:39] (Tina) I hope it will be more. [12:48:51] (Tina) it is pity as it is very beautiful) and as ken told - weird to be blue in the deep) [12:49:18] yes. its very beautiful blue. fascinating [12:49:25] LAT : 37.354993 , LON : -24.379941 , DEPTH : 720.3513 m, TEMP : 10.75275 C, SAL : 35.48416 PSU, DO : 6.03133 mg/l, TURBIDITY : 0.9463 FTU [12:50:17] on the sponge too [12:50:28] some Stolonifera [12:50:39] Can you also focus on polyps embedded in outside of sponge too? [12:51:02] The stoloniferan octocorals. Very cool too. [12:51:29] yes! indeed its Stoloniferan [12:51:44] very exciting view [12:51:59] Some hydroids on outside bottom of oscule as well [12:52:30] could be Hydroids [12:52:36] (Tina) may be sample? [12:52:42] (Tina) 1. association polyps. sponge? 3 hydroid))) [12:52:48] (Tina) 2 spp of hydroids) [12:52:50] irissampaio leaves the room [12:52:51] the encrusting with oscules.. is a glass.. very similar to Gymnorete sp. [12:53:03] (Tina) crinoid! [12:53:05] Back end of cucumber? [12:53:09] (Tina) holopus or like [12:53:14] crinoid [12:53:23] (Tina) stalked crinoid [12:53:42] no [12:53:46] wait I have to look [12:53:51] I know the species [12:54:02] I thought crinoid, but I think the tentacles don't look quite right [12:54:04] Cyathidium foresti [12:54:19] exactly [12:54:24] is a "living fossil" [12:54:25] Yes, @Deb it definitely looks like Darth Vader [12:54:27] LAT : 37.355014 , LON : -24.379897 , DEPTH : 720.8002 m, TEMP : 10.52793 C, SAL : 35.50514 PSU, DO : 5.97072 mg/l, TURBIDITY : 0.9402 FTU [12:54:30] meribilan leaves the room [12:54:49] (Tina) Holopus [12:54:59] https://www.sciencedirect.com/science/article/abs/pii/S0031018208005439 [12:55:04] here it is [12:55:11] en.wikipedia.org/wiki/Holopus [12:55:27] cyrtocrinid [12:55:33] That is so cool @iris. Thanks! [12:55:56] it was my mystery of an expedition in 2016 [12:56:12] they feel like black small rock balls [12:56:33] (Tina) may be yes) Cyathidium [12:56:40] (Tina) but it is super-common) [12:58:42] irissampaio leaves the room [12:59:25] LAT : 37.355021 , LON : -24.379889 , DEPTH : 714.0212 m, TEMP : 10.38014 C, SAL : 35.49151 PSU, DO : 5.94721 mg/l, TURBIDITY : 0.928 FTU [12:59:30] have you zoomed in the branching octocoral? [12:59:48] allencollins leaves the room [13:00:31] right now we can't zoom in on anything, as we are attempting to sample [13:01:48] @deborahglickson thanks! [13:02:51] jeanmarcgagnon leaves the room [13:03:16] Acanthogorgiid again? [13:04:26] LAT : 37.355041 , LON : -24.379892 , DEPTH : 712.5071 m, TEMP : 10.30185 C, SAL : 35.4949 PSU, DO : 5.95741 mg/l, TURBIDITY : 0.9341 FTU [13:04:35] neuscampanyallovet leaves the room [13:04:45] irissampaio leaves the room [13:04:57] yup [13:05:01] Yeah, Acanthogorgia [13:05:05] taraluke leaves the room [13:05:08] It's nice to have sampled this glass sponge, it is very common in the Azores, mainly around the islands at these depths and below, generally on vertical walls. And we do not have a name for it. [13:05:28] I am curious about the one on the right side. It might be Paragorgia [13:05:58] johnreed leaves the room [13:06:28] now more inclined to precious corals [13:06:44] daphnecuvelier leaves the room [13:06:55] I think is Hemicorallium because it has a calcareus skeleton.. you can see that looking at the dead ones [13:07:26] not all have [13:09:27] LAT : 37.355029 , LON : -24.379891 , DEPTH : 713.301 m, TEMP : 10.40291 C, SAL : 35.4967 PSU, DO : 5.94776 mg/l, TURBIDITY : 0.9768 FTU [13:09:43] carlosdominguezcarrio leaves the room [13:11:49] In Okeanos Exp. website there is one that looks equal and is labeled as Gymnorete sp. [13:11:57] irissampaio leaves the room [13:12:30] jaymesawbrey leaves the room: Replaced by new connection [13:13:20] neilmitchell leaves the room [13:13:41] https://www.ncei.noaa.gov/waf/okeanos-animal-guide/Euretidae034.html [13:14:10] I will be nice to compare [13:14:28] LAT : 37.355059 , LON : -24.379843 , DEPTH : 703.8077 m, TEMP : 10.3105 C, SAL : 35.49098 PSU, DO : 5.94776 mg/l, TURBIDITY : 0.9402 FTU [13:16:48] irissampaio leaves the room [13:19:13] Hemicorallium niobe [13:19:28] LAT : 37.354984 , LON : -24.379839 , DEPTH : 705.4671 m, TEMP : 10.35109 C, SAL : 35.49222 PSU, DO : 5.96953 mg/l, TURBIDITY : 0.9341 FTU [13:20:36] kaseycantwell leaves the room [13:21:25] TIna Molodtsova agree with Anthomastus [13:22:59] (Tina) formally Anthomastus [13:24:29] LAT : 37.355009 , LON : -24.379719 , DEPTH : 696.2792 m, TEMP : 10.43972 C, SAL : 35.49831 PSU, DO : 5.95648 mg/l, TURBIDITY : 0.9341 FTU [13:24:38] irissampaio leaves the room [13:25:02] Cidaris cidaris.. yes it's alive [13:27:08] I would suggest following the upper part of the slope towards the southeast, following the same depth for a while before entering the falt summit [13:27:19] *flat [13:29:04] jaymesawbrey leaves the room [13:29:29] LAT : 37.355109 , LON : -24.379718 , DEPTH : 687.1085 m, TEMP : 10.61888 C, SAL : 35.50713 PSU, DO : 6.00004 mg/l, TURBIDITY : 0.9402 FTU [13:29:33] we have changed the third video feed to the map [13:29:55] daphnecuvelier leaves the room [13:30:03] to confirm- movement to the southeast would follow the edge of the feature and then climp at the end. [13:30:32] *climb [13:30:35] copy that, Deborah [13:30:46] and Hi! [13:31:12] jaymesawbrey leaves the room: Replaced by new connection [13:32:07] Joana, can you ask the pilots to have the lasers on while cruising? Thanks! [13:33:00] neuscampanyallovet leaves the room [13:33:13] celsodomingos leaves the room [13:33:38] jaymesawbrey leaves the room [13:34:30] LAT : 37.35504 , LON : -24.379716 , DEPTH : 681.1512 m, TEMP : 10.73356 C, SAL : 35.51317 PSU, DO : 6.0184 mg/l, TURBIDITY : 0.9341 FTU [13:36:04] allencollins leaves the room [13:38:40] celsodomingos leaves the room [13:39:30] LAT : 37.354956 , LON : -24.379548 , DEPTH : 685.0986 m, TEMP : 10.58327 C, SAL : 35.50678 PSU, DO : 5.97638 mg/l, TURBIDITY : 0.9341 FTU [13:39:44] monikaneufeld leaves the room [13:40:33] Lots of red dots on the rocks are confusing for seeing the laser dots. [13:40:54] jeanmarcgagnon leaves the room [13:41:13] If I am not wrong, this white corals seem to be Pleurocorallium johnsoni, which are commonly found at those depths and in association with the yellow Desmacella sponge [13:43:54] thanks for the correction Carlos! in fact they have a "bubblegum" shape at their ends.. alike P. jonhsoni.. So there are 3 spp. [13:44:24] Is this barrel the same as Cf. Haliclona magna we have collected before? [13:44:31] LAT : 37.354986 , LON : -24.379488 , DEPTH : 667.6582 m, TEMP : 10.87109 C, SAL : 35.49577 PSU, DO : 6.06058 mg/l, TURBIDITY : 0.9341 FTU [13:44:46] irissampaio leaves the room [13:45:53] jaymesawbrey leaves the room [13:46:24] The morphology (and size) of this sponge has been oberved before in the Azores, and as Manuela says it'd be cool to know if they are the same species or not [13:46:52] it looks the same but bigger and more developed [13:47:49] ericfielding leaves the room [13:48:02] the black one is the Cyathidum [13:49:24] C. foresti [13:49:29] The white thing could be a lithistid sponge [13:49:32] LAT : 37.35497 , LON : -24.379364 , DEPTH : 665.838 m, TEMP : 10.81289 C, SAL : 35.51198 PSU, DO : 6.04875 mg/l, TURBIDITY : 0.9402 FTU [13:49:41] a rock sponge [13:51:07] The geologists will probably want a dark rock. [13:52:19] What are those brown rocks? [13:52:30] Heavily altered? [13:52:35] As yesterday, the lighter or brown rocks may contain pyroclastic material. [13:53:14] monikaneufeld leaves the room [13:53:23] I suspect both, though I haven't checked with Rui & Ricardo. [13:53:36] I also think one of each [13:54:00] thanks - I was wondering if you might want to collect a few. [13:54:32] LAT : 37.354961 , LON : -24.37925 , DEPTH : 662.9759 m, TEMP : 10.76284 C, SAL : 35.52733 PSU, DO : 6.04522 mg/l, TURBIDITY : 0.928 FTU [13:54:57] carlosdominguezcarrio leaves the room [13:54:59] same location, same box is fine [13:55:13] jeanmarcgagnon leaves the room [13:55:30] irissampaio leaves the room [13:57:58] two is good [13:57:59] Nice! [13:58:46] brown one does look like volcaniclasitic [13:59:32] LAT : 37.354981 , LON : -24.379234 , DEPTH : 662.4445 m, TEMP : 10.85777 C, SAL : 35.52586 PSU, DO : 6.03242 mg/l, TURBIDITY : 0.9341 FTU [13:59:39] neuscampanyallovet leaves the room [14:00:29] Yes, please [14:00:40] irissampaio leaves the room [14:02:27] @biologists on the chat, if you see any coral/sponge that you would like to see collected just let us know ok? We still have 2 bioboxes available [14:04:19] nice [14:04:32] Juicy! [14:04:34] LAT : 37.354981 , LON : -24.379241 , DEPTH : 661.1772 m, TEMP : 10.87623 C, SAL : 35.52142 PSU, DO : 6.04813 mg/l, TURBIDITY : 0.9402 FTU [14:05:50] very different from the rocks we saw yesterday [14:06:50] As yesterday, presumably the internal structure comprises layered basalt and volcaniclastic rocks. [14:07:17] A question. How do you handle the rock samples in the ship? What is the procedure to store them ecc? I know more or less how it works for biological samples but I have no idea what happens to the geological samples. [14:09:20] great question, elisabetta. We normally photograph the rocks, collect any associates (like corals, sponges, etc) that we can and preserve them, and then let the rocks dry. We then wrap them in bubble wrap and store them in rock bags. [14:09:33] LAT : 37.354971 , LON : -24.379255 , DEPTH : 663.8631 m, TEMP : 10.82103 C, SAL : 35.51781 PSU, DO : 6.03009 mg/l, TURBIDITY : 0.9341 FTU [14:09:54] @Joana Thanks! just a question (not request). did you collect stroniferan associate with the sponge? [14:10:12] irissampaio leaves the room [14:11:21] The rock sponge as the white disc that no one identify [14:13:50] irissampaio leaves the room [14:14:17] @Celso, then you did see rock sponges :-) [14:14:32] I was out at lunch, hope we see more [14:14:35] LAT : 37.354934 , LON : -24.379188 , DEPTH : 662.1564 m, TEMP : 10.8396 C, SAL : 35.52613 PSU, DO : 6.05261 mg/l, TURBIDITY : 0.9402 FTU [14:15:14] I think it was a rock sponge [14:15:49] The rocks here are covered with stuff that I would call lichens if it was above water. [14:16:55] jaymesawbrey leaves the room [14:17:50] irissampaio leaves the room [14:18:13] along a contour? [14:19:34] Goniasteridae.. Cf. Peltaster [14:19:36] LAT : 37.354959 , LON : -24.379098 , DEPTH : 660.8225 m, TEMP : 10.80775 C, SAL : 35.51811 PSU, DO : 6.04026 mg/l, TURBIDITY : 0.9402 FTU [14:19:41] That looks like what Americans call "dog's breakfast" [14:19:46] elisabettamenini leaves the room [14:19:47] johnreed leaves the room: Replaced by new connection [14:20:37] the sponge with papilae we are working on it.. Cf. Coelosphaeridae [14:21:56] Here is again the same as the anterior collected Cf Haliclona magna [14:23:23] jaymesawbrey leaves the room [14:24:36] LAT : 37.354997 , LON : -24.379039 , DEPTH : 646.6179 m, TEMP : 10.85208 C, SAL : 35.5196 PSU, DO : 6.03649 mg/l, TURBIDITY : 0.9341 FTU [14:25:14] irissampaio leaves the room [14:26:54] monikaneufeld leaves the room [14:27:10] theis corla looks like Placogorgia [14:27:17] this coral [14:27:22] marydeere leaves the room [14:27:28] would be nice to collect [14:27:49] Agree! [14:27:53] Yes, this Plexauridae is cool. It should be collected [14:28:07] agree. at least Plexaurid. [14:28:10] Maybe Iris can help with the ID [14:28:30] Placogorgiid would be good guess [14:28:42] only based on the sclerome [14:28:56] for now I am guessing Plexauridae [14:29:08] We have seen a few aggregations of this coral before, but no name yet so collecting would be cool [14:29:17] Plexauridae is family. Placogorgia is genus [14:29:29] exactly [14:29:37] LAT : 37.355018 , LON : -24.379095 , DEPTH : 641.4451 m, TEMP : 10.83581 C, SAL : 35.52774 PSU, DO : 6.04828 mg/l, TURBIDITY : 0.9402 FTU [14:29:41] genus within the family [14:30:08] ok, got that! [14:30:27] it looks like Placogorgia .. but just a sample can solve this.. thanks Iris [14:30:58] corals are definitely not my strongest [14:31:32] also, there is a colonial scleractinian that looks like dead [14:31:48] it might be interesting to focus on it after sampling [14:32:32] @manuelaramos how do you distinguish a Placogorgia underwater? [14:34:38] LAT : 37.354986 , LON : -24.379126 , DEPTH : 640.9349 m, TEMP : 10.81634 C, SAL : 35.51822 PSU, DO : 6.03928 mg/l, TURBIDITY : 0.9402 FTU [14:35:05] That is a big coral [14:35:24] thank you for the laser [14:35:33] What are those red incrustations on the rocks? [14:35:33] irissampaio leaves the room [14:35:58] I've just know theres are 3 spp at least on the Azores.. looking at the Grasshof distribution.. the other orange is Paramuricea (with similiar shape) but I think is deeper (and it was already collecte in the misson before).. anyway that ´'s why we need a sample.. [14:36:05] @Eric Anthomastus, octocoral I suppose [14:36:43] daphnecuvelier leaves the room [14:36:52] neuscampanyallovet leaves the room [14:37:14] Amazing! thanks! [14:39:38] LAT : 37.355033 , LON : -24.379044 , DEPTH : 640.87 m, TEMP : 10.80031 C, SAL : 35.51751 PSU, DO : 6.04277 mg/l, TURBIDITY : 0.9402 FTU [14:39:43] could we have maximum zoom of the collected coral?? [14:40:13] jeanmarcgagnon leaves the room [14:40:47] rachelgulbraa leaves the room [14:41:49] @asako, we are in a challenging position at the moment, so we can't really play a lot with the zoom right now [14:42:20] I guess they need to have the ROV very stable to do the delicate operation of putting sample in the bio-box [14:42:27] trying to find a stable ground to get the sample in the biobox [14:42:47] If you check the Census there are 4 species of Placogorgia valid for the Azores. Anyway, it can be many things rather then Placogorgia, from Paramuricea to Muriceides, etc [14:42:51] @Joana Thank you! understand [14:43:01] @eric, exactly! Especially since the sample is larger than we thought [14:43:20] kaseycantwell leaves the room [14:44:37] @Joana, Astrid Schuster confirmed that it was indeed a rock sponge. [14:44:40] LAT : 37.355021 , LON : -24.378978 , DEPTH : 636.4295 m, TEMP : 10.79866 C, SAL : 35.5162 PSU, DO : 6.02645 mg/l, TURBIDITY : 0.9402 FTU [14:44:54] marydeere leaves the room [14:45:25] get a hammer to make it fit [14:45:56] Nice job! [14:46:06] upasanaganguly leaves the room [14:46:29] great collection! thank you Pilots! [14:48:29] @biologists we are now down to 1 biobox and 3 slurp-containers [14:48:32] interesting layering in the rock [14:49:14] @Joana copy that [14:49:39] LAT : 37.354957 , LON : -24.37891 , DEPTH : 636.0538 m, TEMP : 10.71171 C, SAL : 35.5106 PSU, DO : 6.02828 mg/l, TURBIDITY : 0.9341 FTU [14:49:45] Eric, any idea what might cause the layering? [14:50:02] Can we look more closely at the rock [14:50:46] The rocks are more weathered than yesterday [14:51:05] irissampaio leaves the room [14:52:54] rachelgulbraa leaves the room [14:53:27] these barnacles are unidentified too.. if you take a geological sample with one it would be amazing [14:54:40] LAT : 37.354962 , LON : -24.37888 , DEPTH : 636.0862 m, TEMP : 10.61673 C, SAL : 35.50716 PSU, DO : 5.99709 mg/l, TURBIDITY : 0.9402 FTU [14:55:09] these rocks are very soft [14:55:49] Yes. block of reddish rock in matrix. [14:55:58] but they look dead these ones.. [14:55:58] daphnecuvelier leaves the room [14:55:58] johnreed leaves the room [14:56:08] Maybe the matrix is coral rubble? [14:56:34] Paromola cuvieri [14:57:29] The layering looks like it is sedimentary layers, probably broken coral hash [14:57:32] Paromola carrying an Acanthogorgia [14:59:40] LAT : 37.354942 , LON : -24.378842 , DEPTH : 635.0656 m, TEMP : 10.54127 C, SAL : 35.50308 PSU, DO : 5.99237 mg/l, TURBIDITY : 0.9402 FTU [15:00:00] Echinus melo [15:00:10] Sometime we see fishes upside down, presumably because they are confused by the bright lights. [15:00:35] alainahebert leaves the room [15:00:52] Hi Mike, I thought that might be true. very helpful. [15:01:42] Looked like a cusk eel. [15:03:11] neilmitchell leaves the room [15:03:23] irissampaio leaves the room [15:04:26] Almost can't see the rocks because there are so many sponges and corals, etc. [15:04:35] jaymesawbrey leaves the room [15:04:41] LAT : 37.354878 , LON : -24.378804 , DEPTH : 635.954 m, TEMP : 10.56553 C, SAL : 35.50448 PSU, DO : 5.98901 mg/l, TURBIDITY : 0.9341 FTU [15:07:04] @eric, indeed, this is spectacular [15:07:42] I don't thini that is what Eric meant! ha!! [15:08:21] @deborah agree with you!! I thought Eric wanted to mention as Ken Sulack) [15:08:49] Crab may be trying to hide from the ROV [15:08:53] Paromola cuvieri [15:09:37] The pink soft coral looks like Alcyonium [15:09:42] LAT : 37.354847 , LON : -24.378813 , DEPTH : 636.3762 m, TEMP : 11.00953 C, SAL : 35.52695 PSU, DO : 6.08621 mg/l, TURBIDITY : 0.9402 FTU [15:09:47] Alcyonium burmedju [15:10:23] agree. I don't think it is Anthomastus [15:10:32] Other crab is bigger [15:11:10] irissampaio leaves the room [15:12:11] neilmitchell leaves the room [15:12:29] Crab has back legs sticking up, ready to hold a coral. [15:13:13] nice rock layers [15:14:10] blues sponge [15:14:31] brown rocks probably volcaniclastic [15:14:43] LAT : 37.354805 , LON : -24.378774 , DEPTH : 633.8744 m, TEMP : 11.01153 C, SAL : 35.52716 PSU, DO : 6.08655 mg/l, TURBIDITY : 0.9463 FTU [15:15:33] elisabettamenini leaves the room [15:16:05] nice hexa-octo community [15:16:24] looks like dead Lophelia [15:16:42] octo won [15:17:11] jeanmarcgagnon leaves the room [15:17:18] it is Lophelia and it has two polyps alive [15:18:13] @thanks folks, let's see if we find more Lophelia on this dive [15:18:20] Yes, definitely a large loose block [15:18:21] these pink polyps looks like Stolonifera? [15:18:50] several fractures [15:19:13] irissampaio leaves the room [15:19:43] LAT : 37.354821 , LON : -24.378793 , DEPTH : 634.7775 m, TEMP : 10.98997 C, SAL : 35.5288 PSU, DO : 6.0852 mg/l, TURBIDITY : 0.9341 FTU [15:21:01] White rock might be compacted pelagic sediment [15:21:05] @carlos, can you check your private chat? [15:21:24] thanks [15:21:59] @Neil Yes, the rocks seem like compacted sediment, maybe coral hash, with some brown layers of volcaniclastics [15:23:13] The stuff in front might be volcaniclastics [15:24:14] some volcaniclastics are in re-deposited blocks in matrix of the sediments [15:24:44] LAT : 37.354801 , LON : -24.37873 , DEPTH : 632.3835 m, TEMP : 10.88231 C, SAL : 35.523 PSU, DO : 6.0516 mg/l, TURBIDITY : 0.9341 FTU [15:24:45] yellowish/brown layers indeed look like palagonitic tuffs (from shallow ater explosive eruptions) [15:26:28] we already have this one [15:26:53] from other location.. but the same [15:27:09] meribilan leaves the room [15:27:10] rocks are very porous [15:27:36] carlosdominguezcarrio leaves the room [15:27:51] barnacles look like they are on a harder piece of rock [15:28:42] this part is compacted biogenic sediment [15:29:16] michellescharer leaves the room [15:29:44] LAT : 37.354764 , LON : -24.378689 , DEPTH : 632.4443 m, TEMP : 10.84025 C, SAL : 35.51875 PSU, DO : 6.04716 mg/l, TURBIDITY : 0.9341 FTU [15:29:48] Phycis phycis [15:29:50] carbonate [15:30:17] very porous sedimentary rocks [15:30:43] can this be called a "carbonate mound"? [15:31:01] it could have been, at the moment is consolidated [15:31:08] cobwebs [15:31:11] neilmitchell leaves the room [15:31:40] michellescharer leaves the room [15:31:55] some zooms llok like that the carbonate sediment contains skeletal remains of coralline algae [15:31:59] or are carbonate mounds larger than this? when comparing with the british seas? [15:32:05] darker rocks might be different [15:32:08] (non-geniculated red algae) [15:32:28] @asakomatsumoto the polyps on Lophelia? It was Alcyonium burmedju [15:32:31] carbonate mounds can very in size greatly [15:32:51] can they zoom on the dark layers? [15:33:05] this a carbonate cover on a volcanic substrate, not technically a mound [15:33:25] indeed dark layers could be volcaniclastic [15:33:46] shirleypomponi leaves the room [15:33:51] johnreed leaves the room [15:34:12] irissampaio leaves the room [15:34:35] in carbonate mounds you normally do not see the substrate [15:34:44] LAT : 37.354683 , LON : -24.378643 , DEPTH : 631.3477 m, TEMP : 10.87887 C, SAL : 35.52193 PSU, DO : 6.05062 mg/l, TURBIDITY : 0.9402 FTU [15:34:53] thanks Ricardo! [15:35:03] michellescharer leaves the room [15:35:05] they are completely formed of carbonate (the mounds) [15:35:17] brown layers look like volcaniclastic layers [15:35:37] indeed! [15:36:05] there's an inch worm [15:36:07] nice rocks and biology together [15:36:18] ha ha.. great caprellids [15:36:28] Exsuperantia? [15:36:33] @Iris the first one on the rock could be the one. but I saw the pink octo on the Lopheria was partly covered on the lopheria skeleton like sheet. [15:37:39] neuscampanyallovet leaves the room [15:37:48] some gorgeous hydroids on the left there. wonder who they will grow into?? they look like coronate hydroids [15:37:52] Nice lithistids! [15:37:58] Theonella? ok so ther can be confusion with two digitate rock sponges [15:38:22] alainahebert leaves the room [15:38:36] "Lith" means "rock"! [15:38:41] michellescharer leaves the room [15:39:18] Right--not Theonella. [15:39:27] ah ok.. nice! [15:39:45] LAT : 37.354683 , LON : -24.378628 , DEPTH : 633.1903 m, TEMP : 10.8878 C, SAL : 35.52047 PSU, DO : 6.04963 mg/l, TURBIDITY : 0.9341 FTU [15:39:47] so we have the correct ID for this.. great [15:40:31] You can point out, if you want, that lithistids tend to be very prolific sources of chemicals with biomedical potential. I don't know why! [15:42:22] thanks @shirley, great poiint! [15:44:44] neuscampanyallovet leaves the room [15:44:46] LAT : 37.354675 , LON : -24.378545 , DEPTH : 635.4583 m, TEMP : 10.84794 C, SAL : 35.51943 PSU, DO : 6.04033 mg/l, TURBIDITY : 0.9402 FTU [15:46:27] yes you can [15:46:52]