[12:53:33] EX1803 DIVE08 Test message [13:12:37] EX1803_DIVE08 ROV Launch [13:20:16] EX1803_DIVE08 ROV on Surface [13:21:07] EX1803_DIVE08 ROV Descending [13:40:13] iscwatch2 leaves the room [13:47:43] adamskarke leaves the room [14:03:41] scottfrance leaves the room [14:29:00] adamskarke leaves the room [14:40:28] adamskarke leaves the room [14:57:03] adamskarke leaves the room [14:58:22] EX1803_DIVE08 ROV on Bottom [15:00:04] Ah, glorious hard bottom habitat! ;-) [15:01:45] FYI, I'm still on a planning call for EX1806, so not on call or audio. [15:04:04] roger that scott [15:06:56] bathypathes [15:07:01] carbonate rock ? [15:07:14] yes [15:21:41] Pterasteridae [15:22:20] Is that a slime star? [15:22:59] Nevermind, I googled. [15:23:22] Thanks for family name [15:25:52] Oooh. [15:26:36] Could be a Jasonisis [15:26:52] collection? [15:27:37] Sorry - still on call. Well, off now. [15:27:52] I think we have collected a Jasonisis in December, but let me check. [15:29:09] robertcarney leaves the room [15:31:22] let us know scott [15:31:37] We did collect something like this on Dive 6 in December, but just a small piece [15:32:01] It was acollected as an "associate" of the primary sample, a crinoid [15:32:16] I'm having some difficulty finding what depth it was collected from [15:32:29] Will continue to check. [15:32:57] thanks scott [15:34:05] On dive 06 from the last cruise the Isididae was collected at 1963.33m [15:35:02] The data I just saw says 1750 m depth for SPEC04_BIO, collected just 54 nmi south of our current location. [15:37:20] Heteropathes cf. americana? [15:37:47] Another Jasonisis sp.? [15:38:18] Yup, another Jasonisis [15:39:28] Sibogagorgia cauliflora [15:40:07] agree :) [15:40:16] santiagoherrera leaves the room [15:41:15] What morphological characterstics differentiate Paragorgia from Sibogagorgia in photos like this? I'm interested because I've never seen this genus in situ before. [15:43:15] there are no distinctive characters (yet), we there aren't too many records or samples of these [15:44:16] but this is the rigth depth range for it and also looks similar to the only other in situ specimen I have ever seen [15:44:32] debris? [15:47:31] adamskarke leaves the room [15:53:48] There's a picture of the pythonaster on a sponge that I think Chris Mah was talking about. EX1504-L2-13-22:27:16 [15:54:05] In the latest version of the animal guide [15:54:36] What a great observation here. [15:54:56] michaelvecchione leaves the room [15:55:21] Here is a good example of why there may not be more large sponges... [15:55:30] Have to survive the visious predators [15:55:42] Yes, it was one of the arms lifted around sponge. [15:59:40] I think it is in too difficult a spot to try to collect [15:59:57] It is awkewardly placed in between the rocks [16:00:06] I think you'd make a mess of it [16:00:45] And it was small, to boot. [16:03:19] Acanthonus armatus [16:05:07] michaelvecchione leaves the room [16:05:15] Can you say that on the internet? ;) [16:05:45] "That on the internet" [16:05:58] its the official common name [16:06:05] Yup. [16:19:38] Interesting to see those 3 ?amphipods hanging out on a single polyp. [16:28:58] adamskarke leaves the room [16:29:52] what was that? [16:30:30] I believe a stalked glass sponge [16:30:48] ok, thanks that was my guess too [16:36:43] Circeaster [16:36:51] Circeaster sp? [16:38:31] thanks [16:51:27] adamskarke leaves the room [16:59:25] laurenjackson leaves the room [17:00:50] stevenauscavitch leaves the room [17:05:06] Agreed - same Pterasteridae sea star as earlier [17:08:26] aldrovandia [17:08:34] yes, a halosaur [17:12:57] I've been on conference calls and so have missed a lot of what has been said today, so apologies if this already covered. Didn't Bill Shedd on the call last night suggest there may also be vulcanism in this area associated with chicxulub crater? [17:14:37] Yes, he discussed that at the beginning of the dive as part of our intro [17:17:20] robertcarney leaves the room [17:24:30] collection? [17:24:41] That is a collectible potential [17:24:50] If you see one again... [17:24:59] I'll go back and look at previous collections to verify [17:25:42] adamskarke leaves the room [17:27:14] Looks similar to DIVE06_SPEC02BIO from EX1711 [17:27:29] Collected about 50 nm south of here... [17:27:45] at 1963 m depth [17:27:53] Nice to see it again! [17:28:04] I need to get that sample to sequence and study! [17:31:30] nolanbarrett leaves the room [17:33:00] Nematocarcinus ensifer [17:35:39] santiagoherrera leaves the room [17:37:02] Galacantha [17:40:09] kensulak leaves the room [17:41:20] kensulak leaves the room [17:45:42] Hyalonema [17:46:15] adamskarke leaves the room [17:48:41] Regarding Aldrovandia imaged earlier. At the depth of this dive ~~2490 m, this is the transition depth in long-snouted white congeners of the genus. A. gracilis is known down to about 2600 m, A. rostrata from about 2700-5000+ m. A. rostrata not previously known from GOM, most records from central Atlantic. But one was imaged on 2017 OE mission in Pacific. The specimen imaged today looks more like A. rostrata than A. gracilis, but need scale count or underside of head to distinguish the two congeners [17:51:38] thanks ken! I unfortunately missed it [17:58:29] Monomitipus? [18:02:16] Stauropathes [18:04:41] Don't touch the animals! ;-) [18:12:51] Iridogorgia magnispiralis [18:19:09] adamskarke leaves the room [18:24:35] Ophidiidae see a bit earlier, guessed as Monomitopus, had split (2-rayed) pelvics - corresponds closer to gelatinous bodied species of Bassozetus - my initial guess. Parasitic copepod on flank. The Aldrovandia seen earlier also had a small parasite attached at the gill cover. [18:24:56] adamskarke leaves the room [18:27:29] its paramuricea, most likely p. biscaya. but of course can't say for sure without a collection. [18:28:41] santiagoherrera leaves the room [18:29:34] thanks andrea [18:32:03] Chrysogorgia [18:36:19] adamskarke leaves the room [18:37:06] paullarson leaves the room [18:41:19] Eknomisis? [18:50:22] Sorry! I had stepped away for several minutes. Missed it! [18:52:40] adamskarke leaves the room [18:57:54] Bathypathes [18:59:47] stauropathes [18:59:55] it was tricky because it is Stauropathes [18:59:55] robertcarney leaves the room [19:02:36] what kind of geology we have here? [19:05:58] Tina: Steep carbonate rock wall. Highly fractured with detached boulders at the base of the wall. [19:07:20] thanks adam [19:08:31] fish [19:09:18] did anyone see what type of fish it was? [19:09:38] no on the fish [19:10:15] bamboo whip [19:11:41] Iridogorgia right [19:13:43] nope [19:14:06] it may be what mercer has described as Telop[athes [19:14:24] but there is no morphological differences [19:15:25] we may take a piece, but it is huge [19:16:07] no... not Parantipathes [19:16:16] i dont recall seeing this morph before in the gomx [19:16:56] @Tina: agree it isn't classic Parantipathes. But that was the ID associated with the North Pacific morph that looks just like this. [19:17:05] Agree, haven't seen it before in the GoMex [19:17:09] it apparently Bathypathes, but we can take only small fragment and ... [19:17:17] how long pinnuleas are? [19:17:46] we need a fragment at least 10 cm of the stem [19:17:59] if it suit to box& [19:18:14] the question is [19:18:35] @Tina: the morph I am referring to from the Aleutians is the one Mercer could not distinguish from Dendrobathypathes and Lillipathes using genetics. [19:19:22] @scott, not, this one is to Bathypathes sl [19:19:29] sea star in port inner bio box [19:20:10] and, daniel, aftercollection, if it possible to look at the basal part and stem [19:20:42] @Tina: Yup. It also looks similar to Bathypathes from Kelvin Seamount at 2574 m depth [19:20:44] has to be cut!!!! [19:20:53] So that is very close to where we are now. [19:20:58] I mean in depth. [19:21:06] Kelvin is in the New England Seamounts [19:22:22] it may be something close to B. galathea [19:24:19] lasers? [19:27:58] @Dan: not just imaged, but collected and sequenced. [19:28:14] adamskarke leaves the room [19:28:36] So a direct comparison can be made between these. [19:32:28] jillbourque leaves the room [19:32:54] Aldrovandia? [19:34:52] Aldrovandia ?oleosa [19:36:22] zoom at coral right? [19:37:33] bamboo? [19:38:36] black coral just left [19:39:13] great [19:42:21] cupcoral dead [19:44:55] argonaut [19:45:02] ? [19:45:15] Agree - argonaut paper shell [19:45:20] perhaps [19:45:24] Argonaut? [19:46:09] lovely [19:46:29] looks like art) [19:46:47] ...only female have it [19:49:26] we caught a live one on a plankton cruise in this area in a neuston net once [19:50:17] crinoid?? [19:50:39] under Paramuricids right [19:52:46] passed [19:53:55] this one perhaps less traditional bathypathes. It is just more common [19:54:16] adamskarke leaves the room [19:55:44] laurenjackson leaves the room [19:56:58] Signing off now folks. Enjoy the rest of the dive. [19:57:46] thanks scott [19:58:08] andreaquattrini leaves the room [19:58:23] stevenauscavitch leaves the room [19:59:19] how more time we have down here? [20:01:27] @adam- what is the best ID for this rock? [20:03:21] white carbonate rock [20:04:29] tina: 15 minutes [20:05:35] paullarson leaves the room [20:07:05] adamskarke leaves the room [20:07:07] we still have scoop? [20:09:22] adamskarke leaves the room [20:09:22] laurenjackson leaves the room [20:10:08] enriquesalgado leaves the room [20:12:40] quite smoooth today [20:13:15] anothe argonaut shell& [20:13:36] meganmcculler leaves the room [20:14:18] @adam, the black fragments are crust? [20:14:49] thanks a lot! it was a good dive [20:14:57] scottfrance leaves the room [20:15:12] Tina: Likely carbonate rock fragments with FeMn crust [20:15:45] @adam, how thick is FeMn crust here? [20:16:07] Dive Planning Call at 3:30 PM CDT [20:16:19] andrewshuler leaves the room [20:16:38] iscwatch2 leaves the room [20:16:40] Tina: few samples collected but most have been on the order of a centimeter or two at most [20:17:27] I suspect what we saw today was much thinner [20:21:56] thanks! [20:23:29] EX1803_DIVE08 ROV Ascending [20:24:46] kensulak leaves the room [20:26:58] katerose leaves the room [20:38:35] adamskarke leaves the room [20:40:45] danielwagner leaves the room [20:50:01] tinamolodtsova leaves the room [20:59:00] kristopherbenson leaves the room [21:00:00] emmahickerson leaves the room [21:04:37] mikeford leaves the room [21:31:35] nolanbarrett leaves the room [21:35:37] EX1803_DIVE08 ROV on Surface [21:39:24] amybowman leaves the room [21:50:31] EX1803_DIVE08 ROV Recovery Complete [22:02:03] andreaquattrini leaves the room