[01:24:55] cherylmorrison leaves the room [01:58:41] timothyshank leaves the room [02:56:43] kaseycantwell leaves the room [10:13:13] Hi All- we are at least one hour delayed due to the need to adjust our dive site. Our mapping efforts north of the Cape Fear Lophelia mounds were not successful in that the area surveyed was very flight. We are headed south to the Lophelia mound site, but with the currents, we will be about an hour delayed. We are expecting Launch at 9:30 and the dive planning call at 9:30. [10:13:23] we will keep you posted of our progress [10:16:11] and by "flight" I mean "flat" [10:20:07] EX1806_DIVE09 ROV powered off [10:33:53] cherylmorrison leaves the room [11:54:13] Predive Test [12:15:25] Hi all - we made good time. We are preparing for launch currently and should be in the water around 8:45 [12:19:04] EX1806_DIVE10 ROV Launch [12:23:28] Correction - 8:30 launch, everyone is in a groove this morning! [12:27:44] EX1806_DIVE10 ROV on Surface [12:28:52] Hi Dhugal [12:30:19] EX1806_DIVE10 ROV Descending [12:30:34] LAT : 33.576892 , LON : -76.461243 , DEPTH : 2.4582 m, TEMP : 29.03878 C, SAL : 36.16191 PSU, DO : 6.13762 mg/l [12:35:35] LAT : 33.576816 , LON : -76.461058 , DEPTH : 60.8465 m, TEMP : 21.21786 C, SAL : 36.38096 PSU, DO : 5.83457 mg/l [12:40:35] LAT : 33.576886 , LON : -76.461049 , DEPTH : 184.7928 m, TEMP : 11.25428 C, SAL : 35.3984 PSU, DO : 3.89441 mg/l [12:45:36] LAT : 33.577086 , LON : -76.461284 , DEPTH : 314.0485 m, TEMP : 9.401 C, SAL : 35.21788 PSU, DO : 4.30398 mg/l [12:50:26] good morning, Scott! sipping your coffee and reading the Sunday Times? [12:50:36] LAT : 33.577358 , LON : -76.461528 , DEPTH : 409.9841 m, TEMP : 8.72698 C, SAL : 35.1436 PSU, DO : 4.36794 mg/l [12:55:37] LAT : 33.577736 , LON : -76.461763 , DEPTH : 416.4523 m, TEMP : 8.74681 C, SAL : 35.14507 PSU, DO : 4.35902 mg/l [12:55:49] Good morning! [12:58:24] Good morning Tara and anyone else up early and joining us! [13:00:37] LAT : 33.578022 , LON : -76.461936 , DEPTH : 416.3444 m, TEMP : 8.68965 C, SAL : 35.13671 PSU, DO : 4.35337 mg/l [13:05:30] squid! [13:05:43] LAT : 33.578469 , LON : -76.462188 , DEPTH : 416.1712 m, TEMP : 8.59978 C, SAL : 35.11512 PSU, DO : 4.2763 mg/l [13:10:37] good morning, Alexis! [13:10:44] LAT : 33.578567 , LON : -76.46272 , DEPTH : 447.5754 m, TEMP : 8.65005 C, SAL : 35.15138 PSU, DO : 4.47454 mg/l [13:10:56] seafloor in sight [13:11:07] We're on the bottom, settling in [13:11:15] EX1806_DIVE10 ROV on Bottom [13:11:49] I haven't called in, but I"m here [13:15:39] LAT : 33.578574 , LON : -76.462861 , DEPTH : 452.9004 m, TEMP : 8.65128 C, SAL : 35.1525 PSU, DO : 4.49349 mg/l [13:16:39] hello all. [13:17:03] good depth for seeing some bentho-pelagic interactions [13:18:56] hello all [13:19:33] solitary coral polyps? [13:19:50] Hello Dhughal and Asako! [13:20:24] Good evening, Asako! [13:20:40] LAT : 33.578479 , LON : -76.462945 , DEPTH : 452.6932 m, TEMP : 8.64949 C, SAL : 35.15192 PSU, DO : 4.47671 mg/l [13:22:25] Hi Cheryl, Hi Tara! Good late evening! [13:24:24] I wonder if the red spines on the previous urchin was caused by missing or damaged spines [13:24:53] they kind of looked droopy [13:25:40] LAT : 33.578519 , LON : -76.463076 , DEPTH : 450.4513 m, TEMP : 8.64652 C, SAL : 35.15304 PSU, DO : 4.50248 mg/l [13:29:37] zoanthid? [13:30:40] LAT : 33.578454 , LON : -76.463132 , DEPTH : 449.8904 m, TEMP : 8.6411 C, SAL : 35.15287 PSU, DO : 4.51835 mg/l [13:31:26] maybe an acorn worm? [13:34:31] morid cod [13:35:21] The small, colorful fish? [13:35:41] LAT : 33.578467 , LON : -76.463265 , DEPTH : 447.2209 m, TEMP : 8.64095 C, SAL : 35.15154 PSU, DO : 4.49374 mg/l [13:36:30] no the one with the very long dorsal fin [13:37:12] Yes, thanks Dhugal! [13:38:18] Chlorophthalmus maybe was the colorful one [13:40:41] LAT : 33.578363 , LON : -76.463481 , DEPTH : 443.3075 m, TEMP : 8.6347 C, SAL : 35.15306 PSU, DO : 4.49588 mg/l [13:40:57] Octopus spikyeyebrowus - very nice! [13:43:54] Is anyone else hearing a lot of background noise? it makes it hard to hear talking. [13:45:42] LAT : 33.578369 , LON : -76.463499 , DEPTH : 439.9928 m, TEMP : 8.63214 C, SAL : 35.1533 PSU, DO : 4.5038 mg/l [13:46:42] @Megan: I don't have any background noise by myself. but I use iPhone for audio. [13:48:42] @megan- we are looking into it [13:49:21] it sounds kind of like a light static. it was there yesterday and stopped for a brief time and everything was much clearer. [13:50:05] no background noise here [13:50:36] Hmm..odd [13:50:47] LAT : 33.578321 , LON : -76.463703 , DEPTH : 436.2475 m, TEMP : 8.63685 C, SAL : 35.15039 PSU, DO : 4.48867 mg/l [13:51:50] snowy grouper [13:52:42] maybe the feed has always sounded like this and I'm just now noticing it! Like my computer fan is constantly running but it stops when I mute the feed [13:54:35] Megan there was an open mic that has now been closed. Hope that helps! [13:55:43] LAT : 33.578289 , LON : -76.463727 , DEPTH : 431.9798 m, TEMP : 8.62871 C, SAL : 35.1529 PSU, DO : 4.51688 mg/l [13:55:52] @Cheryl it sounds the same. maybe I'm just going crazy ! [13:56:11] Critters: Chain Dogfish = Scyliorhinus retifer; bluish macrourid angling along = Nezumia aequalis; octopus with 'ears' = maybe Bathypolypus; red scorpionfish bumping into octopus = Helicolenus dactylopterus (Blackbelly Rosefish); gray Morid hake = Laemonema barbatula [13:56:40] Thanks for nice close-ups of fishes! [13:59:20] In the dim natural light at this depth, the chain pattern of the dogfish is very effective disruptive camo. This is one of the few species of sharks that can 'breathe' while sitting motionless, instead of ram ventilating during continuous swimming [13:59:59] Chain Dogfish is strongly associated with Lophelia coral rubble habitat [14:00:43] LAT : 33.578008 , LON : -76.464088 , DEPTH : 432.1856 m, TEMP : 8.63102 C, SAL : 35.15227 PSU, DO : 4.50081 mg/l [14:04:01] @Ken - what d you think? [14:05:44] LAT : 33.577959 , LON : -76.464261 , DEPTH : 430.2451 m, TEMP : 8.64857 C, SAL : 35.1444 PSU, DO : 4.43354 mg/l [14:08:14] scottharris leaves the room [14:10:44] LAT : 33.577807 , LON : -76.464455 , DEPTH : 427.9414 m, TEMP : 8.6367 C, SAL : 35.14934 PSU, DO : 4.48272 mg/l [14:11:02] Found another mic open= any better Megan? [14:15:45] LAT : 33.577753 , LON : -76.464534 , DEPTH : 426.4669 m, TEMP : 8.6326 C, SAL : 35.14996 PSU, DO : 4.47598 mg/l [14:16:30] @Cheryl no difference. I have no idea what made it briefly stop yesterday.. [14:17:46] I could call in and listen over the phone instead. I think it's because I don't have the ability with these speakers to switch between speakers [14:19:33] @megan, there is a constant hum in the control room that may be picked up by any mic, so that's why we've been trying to track it down. You're welcome to join on the conference line if that's better [14:20:10] Large fish encountered was a beautiful specimen of the Wreckfish = Polyprion americanum (or americanus, need to recheck) [14:20:45] LAT : 33.577738 , LON : -76.464388 , DEPTH : 427.7061 m, TEMP : 8.62892 C, SAL : 35.14953 PSU, DO : 4.49812 mg/l [14:21:55] Thanks Ken! Was that true of the group we saw as well? [14:22:29] Two reddish scropopnfishes encountered. First very small one facing the camera was perhaps a young juvenile Trachyscorpia cristulata; second with a lot more white that bumped into octopus = Helicolenus dactylopterus [14:23:08] I sent out the bat (star) signal. :) [14:23:23] @Cheryl that might be it. I did actually just find the advanced controls on my speakers changed the balance. Much better now! [14:23:26] Kasey - my system here is very jumpy and it is difficult to step back progressively to discover the fishes seen before I joined. I have not seen the group yet. [14:25:46] LAT : 33.577798 , LON : -76.464451 , DEPTH : 426.1873 m, TEMP : 8.64243 C, SAL : 35.14413 PSU, DO : 4.43874 mg/l [14:27:48] Understood Ken - thanks [14:30:41] our video team will probably grab a still of them so you can check it out later [14:30:48] LAT : 33.577714 , LON : -76.464532 , DEPTH : 423.7936 m, TEMP : 8.63833 C, SAL : 35.14658 PSU, DO : 4.4706 mg/l [14:31:25] We've just past 200 m since bottom [14:31:50] alexisweinnig leaves the room [14:34:31] Did not find that group of fishes. Did find a nice specimen of Chlorophthalmus agassizi = Greeneye, with its blotches unusually dark. There are indeed several different individuals of Wreckfish in the images. One big one had a frayed caudal fin, next one imaged had a nice undamaged caudal fin and looked a bit smaller. They do tend to move around in small pods. [14:35:10] yay!!! midwater dive planned. go midwater!! [14:35:47] LAT : 33.577594 , LON : -76.464896 , DEPTH : 421.2247 m, TEMP : 8.64391 C, SAL : 35.14121 PSU, DO : 4.40232 mg/l [14:38:21] Dark blue fish hiding in the rubble matrix was a morid, but the color is unusual. It did have the two-ray split pelvic fin of a Laemonema [14:40:48] LAT : 33.577483 , LON : -76.464995 , DEPTH : 419.0126 m, TEMP : 8.64678 C, SAL : 35.13865 PSU, DO : 4.39648 mg/l [14:41:27] Are the stripes some type of sensor? [14:41:50] for water vibrations [14:42:05] Thank you, @dhugallindsay! [14:42:30] kensulak leaves the room [14:43:51] fish dive today :) [14:44:32] joanaxavier leaves the room [14:45:01] a lot of urchins too. wonder what they eat? [14:45:48] LAT : 33.577357 , LON : -76.464979 , DEPTH : 420.9958 m, TEMP : 8.63885 C, SAL : 35.14354 PSU, DO : 4.42644 mg/l [14:46:00] stripe down the length of the body is the lateral line system, full of sensory pits for mechanoreception [14:50:49] LAT : 33.577245 , LON : -76.465109 , DEPTH : 418.5921 m, TEMP : 8.63102 C, SAL : 35.14662 PSU, DO : 4.45084 mg/l [14:51:02] oooh was that a brachiopod that closed? next to nem [14:51:40] Orange angler on bottom = probably Chanax pictus [14:52:58] Chaunax is a classic ambush predator. Its lure is embedded in a pit on the forehead - not extended as a visual lure, but it is a chemical lure [14:54:34] I know we've got a lot of time left, but if we are still in this lophelia habitat would it be worthwhile to get a scoop sample? [14:54:40] scottfrance leaves the room [14:55:29] flytrap anenome [14:55:49] LAT : 33.577324 , LON : -76.46515 , DEPTH : 415.3752 m, TEMP : 8.64176 C, SAL : 35.13951 PSU, DO : 4.38486 mg/l [14:56:11] @megan, yes, I'm sure that Leslie would also like a scoop sample. We've taken several in the mound features and have saved some for aging analysis [14:56:39] @sci - Steve Ross confirms these are wreckfish and that we may be too deep for snowy grouper [14:57:45] aeolid nudi! :) [14:57:54] Pod of 3 Wreckfish. As opportunistic predators, they are attracted to disturbance. The ROV is a big disturbance. Lateral display of body in front of the ROV with repeated mouth gaping may be an aggressive response to the ROV [14:58:12] @megan - the nudibranch? [14:59:39] @Leslie yes, aeolids are the types of nudibranchs with the long extensions on their back [15:00:50] LAT : 33.57716 , LON : -76.465278 , DEPTH : 413.0084 m, TEMP : 8.64274 C, SAL : 35.13791 PSU, DO : 4.39276 mg/l [15:05:40] Chris Mah says that the most recent seastar we saw was probably Plinthaster dentatus [15:05:50] LAT : 33.577123 , LON : -76.465313 , DEPTH : 412.7721 m, TEMP : 8.63639 C, SAL : 35.14018 PSU, DO : 4.41405 mg/l [15:06:39] thanks, Tara [15:10:51] LAT : 33.577021 , LON : -76.465397 , DEPTH : 411.2135 m, TEMP : 8.63388 C, SAL : 35.14144 PSU, DO : 4.40805 mg/l [15:11:33] hake with black triangular blotches in fins = Laemonema melanurum, one of the morid hakes particularly associated with Lophelia [15:15:51] LAT : 33.576937 , LON : -76.465554 , DEPTH : 410.3029 m, TEMP : 8.63552 C, SAL : 35.13703 PSU, DO : 4.3855 mg/l [15:17:15] asakomatsumoto leaves the room [15:20:52] LAT : 33.576915 , LON : -76.465536 , DEPTH : 408.0079 m, TEMP : 8.6347 C, SAL : 35.13248 PSU, DO : 4.35446 mg/l [15:21:23] Name correction for orange angler = Chaunax stigmaeus, no C. pictus [15:21:46] whitish portions full gonads? [15:22:36] have you collected this hydroids in previous dive? [15:23:46] no. some shrimps on the one before. Haven't seen any medusa buds on any so far. You know what they are? [15:24:02] @Leslie, Laura suggests a band name "Unsuspecting Squid" [15:25:23] @Dhugal: do you ask me? [15:25:33] @asako, yup [15:25:52] LAT : 33.576771 , LON : -76.465754 , DEPTH : 405.0272 m, TEMP : 8.62851 C, SAL : 35.12559 PSU, DO : 4.30188 mg/l [15:26:44] lots of nice crustaceans around. No zoom because no crustacean taxonomists around? [15:27:03] @Dhugal: no. just hydroids. that is why I ask it has been collected before or not. I mean previous "cruise". [15:28:09] @Asako, fair enough. Not able to ID hydroids without a collection.. [15:28:32] @dhugal We've zoomed on the Eumunida picta several times and that's the dominant squat lobster. Or have we missed others? [15:29:22] surprised about the lack of midwater shrimp near the bottom... Guess they are good food for all these fish so eaten pretty rapidly... [15:30:48] My eyes not honed enough yet to tell if that is what they all are at the distance they are. You have more experience there... [15:30:58] LAT : 33.576653 , LON : -76.465486 , DEPTH : 408.0433 m, TEMP : 8.63081 C, SAL : 35.13099 PSU, DO : 4.33011 mg/l [15:31:11] @dhugal - perhaps food for the squat lobsters? Do they eat shrimp? (and, likely shrimp are eaten by the fish) [15:31:31] Fish ID correction: small macrourids seen obliquely probing the substrate = Nezumia bairdii, not N. aequalis. Coloration is a bit unusual here [15:33:25] Question from the audience: From Michelle Woo Bowman: Any explanation as to why there are so many dead coral mounds on all of these explorations? Results of hurricanes? Previous sea levels? Dominant ocean currents depositing them. Are the all really "old"? [15:34:57] plasticus baggius [15:35:53] LAT : 33.576521 , LON : -76.465629 , DEPTH : 407.5299 m, TEMP : 8.63209 C, SAL : 35.13795 PSU, DO : 4.38828 mg/l [15:36:08] flytrap anenome [15:36:16] My answer to audience question is that we are mostly seeing very old skeletons upon which existing community is growing. The older coral rubble doesn't get buried here as quickly as in shallow water (or on land) and persists for a very long time. [15:36:37] thanks Scott! [15:37:50] A question may be why we aren't seeing more living material on the top of the rubble. That could indicate changed conditions in the environment - the amount of food available, the current speed, temperature, etc. All of these change through time and affect the communities. [15:38:55] for the audience question: Sea level changes would not influence, although the changes in global ocean circulations may have an impact. Also, hurricane waves would not influence at this depth. [15:39:11] @Leslie can translate :) [15:39:52] Chris Mah said that these brisingids are called Novodinia, a more basal group than the typical brisingids we see. [15:40:51] One point on sea level change. While such change would not expose these corals, it would affect the depth at which the corals are living and so could change the pattern of deposition of surface-derived organic C. That is, there would be more and fresher food arriving at the seafloor for a community at 200 m vs 400 m. [15:41:05] LAT : 33.576432 , LON : -76.465738 , DEPTH : 405.8032 m, TEMP : 8.6303 C, SAL : 35.14117 PSU, DO : 4.40702 mg/l [15:41:24] The sea-level change could also change how the currents impact these deep communities. [15:41:56] Those are my conjectures, not based on any studies of paleo-communities that I have read. [15:44:20] It is not unusual, indeed it is typical, for invertebrate filter feeders with stony skeletons to build and live upon the skeletons of their dead precursors. For example, oysters, barnacles, shallow reef corals, and many others. So, same process here with Lophelia [15:44:34] @ScottFrance, yes-- I was unaware we were so shallow today!!! There is the opportunity of seeing a deep iceberg scour at this location. During the last glacial maximum when ice covered northern North America 18,000 years ago...I'll call [15:45:54] LAT : 33.576171 , LON : -76.465741 , DEPTH : 408.0388 m, TEMP : 8.63245 C, SAL : 35.13742 PSU, DO : 4.37507 mg/l [15:46:01] Blackbelly Rosefish - unfortunate name, it refers to the black lining of the gut (inside), impossible to see in a live fish [15:49:40] Scyliorhinus meadi = catshark [15:49:51] Catshark? [15:50:49] Great- thanks @ken and @scott [15:50:59] LAT : 33.5762 , LON : -76.465734 , DEPTH : 406.1667 m, TEMP : 8.62953 C, SAL : 35.13433 PSU, DO : 4.36075 mg/l [15:51:33] That was a really fat catshark - must have recently had a nice large meal. Also unusual to see this species up and swimming. Typically sits placidly on the rubble [15:52:13] Squat lobster with egg mass? [15:52:32] to left of Lophelia [15:53:15] I was wondering that too bout mama squatty [15:53:56] heatherjudkins leaves the room [15:55:55] LAT : 33.576122 , LON : -76.465802 , DEPTH : 408.1433 m, TEMP : 8.62938 C, SAL : 35.13517 PSU, DO : 4.36689 mg/l [16:00:56] LAT : 33.575902 , LON : -76.465997 , DEPTH : 407.005 m, TEMP : 8.62784 C, SAL : 35.13253 PSU, DO : 4.35393 mg/l [16:05:56] LAT : 33.575667 , LON : -76.466017 , DEPTH : 406.3978 m, TEMP : 8.62733 C, SAL : 35.12905 PSU, DO : 4.3363 mg/l [16:07:12] chaunax stigmaeus or pictus [16:07:29] another Chaunax stigmaeus - with a nifty name 'Redeye Gaper' [16:10:57] LAT : 33.575628 , LON : -76.466012 , DEPTH : 406.7186 m, TEMP : 8.62016 C, SAL : 35.12767 PSU, DO : 4.31719 mg/l [16:12:26] leswatling leaves the room [16:15:57] LAT : 33.575569 , LON : -76.465934 , DEPTH : 407.5377 m, TEMP : 8.62114 C, SAL : 35.1266 PSU, DO : 4.31813 mg/l [16:18:16] I agree - doesn't look like a golden crab [16:18:27] not bathynectes? [16:18:42] This one has flat 5th legs, so is more like a swimming crab [16:19:05] i think bathynectes [16:19:17] Yes, Bathynectes a good possibility. Not my wheelhouse though. [16:19:25] oh no, no it is not [16:19:35] not sure what this is... [16:20:08] At the least we can agree it is a portunid crab. [16:20:57] @Leslie: correct - swimming crab group [16:20:59] LAT : 33.57556 , LON : -76.466047 , DEPTH : 404.5973 m, TEMP : 8.61965 C, SAL : 35.12603 PSU, DO : 4.30796 mg/l [16:21:34] Protunid crab - swimming crab - possibly Bathynectes brevispina [16:23:32] Not Ken had a typo in there: it is Portunid, not Protunid, or more formally, the Superfamily Portunoidea [16:23:43] *I meant "Note" Ken... [16:24:38] This feathery thing I think is a black coral... [16:25:06] I believe we collected some in the GoMex expediton. Will check. [16:25:34] That would also be consistent with the white dots, which could be gametes inside polyps. [16:25:58] LAT : 33.575527 , LON : -76.466088 , DEPTH : 404.5356 m, TEMP : 8.62272 C, SAL : 35.12742 PSU, DO : 4.32405 mg/l [16:26:28] Hydroid was the other thing I thought, but that close-up looked more like a black coral. [16:26:35] @Scott: that is what I wanted to know that someone may collected before [16:27:07] I verified we collected a yellow, feathery black coral on EX1711. Will check the depth it came from. [16:27:51] @Scott: do you rally think it is black coral? I thought it is hydroids. [16:28:29] Yep. Sirius on feed 2, quad on feed 3 [16:28:42] if it is black coral, its definitely new to me. [16:29:13] @Asako: I'd need another cloe-up to be sure, because those were the two choices I was considering. [16:29:28] josephhoyt leaves the room [16:29:44] I'll find a link to the black coral I'm thinking of. It was also very small and grew in this same sort of crinoid shape. [16:30:01] @Scott: we have seen this coral at least 3 times during today's dive. [16:30:43] you can also check other two colony picture. [16:30:59] LAT : 33.575309 , LON : -76.466023 , DEPTH : 403.0403 m, TEMP : 8.62078 C, SAL : 35.13195 PSU, DO : 4.35949 mg/l [16:33:37] The small "feathery" yellow black corals collected on EX1711 were from 699 m. Haven't found an easy link to them yet, but if you have access to the cruise data you can look at images of DIVE01_SPEC03BIO. [16:34:07] andreaquattrini leaves the room [16:34:10] In the images I see the polyps looked more pronounced and thicker than what I just saw a few moments ago. [16:34:23] The seafloor-scape we have been traversing is not simply an off-reef rubble field. There is a lot of standing, but dead Lophelia, in what once had to have been a primarily live standing coral thicket. This condition suggests some shift in conditions in the 'no-so-distant' past resulting in death of the standing but now dead coral. This depth is close to the bottom of the Gulf Stream. Perhaps a shift in the axis of the Gulf Stream east or west would result in massive death due to insufficient delivery of particulate food? [16:35:37] This is not the same thing I am referring to from EX1711... [16:35:54] collection for ID? [16:36:10] LAT : 33.575179 , LON : -76.466173 , DEPTH : 403.0438 m, TEMP : 8.61704 C, SAL : 35.13068 PSU, DO : 4.35241 mg/l [16:36:17] Sure, collection would be useful. [16:36:31] From this angle I'd be more inclined to say hydroid than black coral. [16:37:07] @Scott: thank you. I agree EX1711 specimen is yellow black coral. but this must be hydroid. [16:37:23] This is so small and "flimsy" that mabe just grabbing the whole colony from the base is advisable. [16:37:33] agree with collection! [16:37:43] I thought so too, but a collection would help [16:38:34] Hope we may also get associates- caprellid amphipods and shrimps [16:40:23] Chery - regarding the possibility of encountering big Snowy Grouper (ther really big ones occur deeper), that species does occur down to ~~400 m in the Gulf of Mexico. But the Gulf is a bit warmer at depth than the SE Atantic slope. Temp here now is ~~8.6C, almost within the temp range for Snowy Grouper. If one would be encountered, the species is dark brown with three or more parallel rows of neat white spots horizontally set in a very orthogonal pattern. Caudal fin is rounded on its end. Jaw is not jutting as in Wreckfish. However, Snowys behave similarly - attracted to disturbance and ROVs, but tending to hang at the periphery of the illuminated zone. The really big old ones get up to 1.5 m long [16:40:33] Will this be EX1806_D2_DIVE10_SPEC01BIO? [16:40:40] EX1711 specimen has polyps directly from each branch and not feathery shape. polyps were more freshy. [16:41:00] LAT : 33.575174 , LON : -76.466188 , DEPTH : 403.018 m, TEMP : 8.6175 C, SAL : 35.13198 PSU, DO : 4.33548 mg/l [16:41:51] @Asako: agreed. Definitely not the same thing. [16:42:30] @Asako: when I suggested black coral, I didn't have a view of the whole colony as here, just the back of some branch tips sticking out from behind a rock. Didn't realize it was a planar fan. [16:42:48] @sci: did you see earlier question re: sample number? [16:44:51] I think this is the first collection of this dive. could be SPEC01BIO [16:45:22] but should wait their reply... [16:46:00] LAT : 33.575176 , LON : -76.466183 , DEPTH : 403.038 m, TEMP : 8.61755 C, SAL : 35.12891 PSU, DO : 4.33501 mg/l [16:46:13] Yes, first collection, SPEC01Bio [16:46:33] @sci: thanks [16:46:59] adriennecopeland leaves the room [16:48:15] The sample floated away. We'll have to try again later [16:49:15] @sci: when I suggested earlier you go for the whole colony at base (which I heard you followed up on - thanks), I should have said grab the rubble to which it is attached. That would provide ballast for it to sink into the biobox. [16:51:01] LAT : 33.575111 , LON : -76.466052 , DEPTH : 401.7133 m, TEMP : 8.61817 C, SAL : 35.13236 PSU, DO : 4.364 mg/l [16:51:25] I suggest trying that on this one: sample the coral rubble on which it grows. [16:51:37] I hear thta you've already got it covered. :-) [16:54:59] kensulak leaves the room [16:56:01] LAT : 33.575099 , LON : -76.466112 , DEPTH : 402.279 m, TEMP : 8.61555 C, SAL : 35.13286 PSU, DO : 4.34105 mg/l [16:57:28] It is amazing to me how loose this rubble is. From a distance it looks cemented in place... [16:59:13] With the proximity to the coast, and the estimated water depths of ~~275m during the last glacial maximum (i believe that is a correction to what I said earlier), this area would have been in the upper parts of the dysphotic zone (Twilight). That adds some interesting complications for the long-term biotic compositions and succession (cold twilight in past, now in warm(er) aphotic zone) [17:00:14] @scottharris: thanks for that info. This likely would have been a very different environment then. [17:00:55] @Leslie: I remember that and wondered at the time what the heck I was looking at. [17:01:06] LAT : 33.575008 , LON : -76.466056 , DEPTH : 403.3974 m, TEMP : 8.61033 C, SAL : 35.12483 PSU, DO : 4.31435 mg/l [17:03:33] Hi Nolan! [17:04:20] @Asako Hello! I'm finally getting to the dive today. I see I've missed a lot of fun stuff! [17:05:21] It's the sieve plate. Brings water into the water vascular system [17:06:02] LAT : 33.574955 , LON : -76.465934 , DEPTH : 401.93 m, TEMP : 8.60557 C, SAL : 35.12506 PSU, DO : 4.31891 mg/l [17:08:06] Chris Mah says it looked like an Ophidiaster [17:08:40] taraluke leaves the room [17:11:03] LAT : 33.574863 , LON : -76.466037 , DEPTH : 403.182 m, TEMP : 8.6005 C, SAL : 35.12228 PSU, DO : 4.30277 mg/l [17:12:52] @Nolan: this is the fish dive today :) [17:13:39] robertcarney leaves the room [17:13:50] No I believe Tara did relay the others [17:16:03] LAT : 33.574692 , LON : -76.466043 , DEPTH : 400.2936 m, TEMP : 8.60255 C, SAL : 35.12336 PSU, DO : 4.32498 mg/l [17:17:19] @Asako I've been going back through the footage and I can see that! Such diversity and imagery! [17:21:04] LAT : 33.574727 , LON : -76.465737 , DEPTH : 404.567 m, TEMP : 8.60265 C, SAL : 35.12468 PSU, DO : 4.29832 mg/l [17:22:36] hi here! [17:22:47] something good today? [17:23:25] @megan ok! Thanks [17:24:55] @Tina - a lot of fish, including cat fish, dogfish, wreckfish (sounds like Dr. Seuss!). [17:26:03] @Leslie That's a great way to summarize it! [17:26:12] LAT : 33.574537 , LON : -76.465844 , DEPTH : 405.719 m, TEMP : 8.60265 C, SAL : 35.12273 PSU, DO : 4.29887 mg/l [17:27:45] few sponges, only 2 coral species, lots of squat lobsters and MILLIONS of brittle stars!! [17:28:39] wreckfish sounds lovely. I have to google it) [17:29:32] Hi Tina! [17:31:05] LAT : 33.574536 , LON : -76.465631 , DEPTH : 404.6851 m, TEMP : 8.60296 C, SAL : 35.12186 PSU, DO : 4.28344 mg/l [17:31:22] Hi Asako! [17:31:32] Lovely fish [17:33:12] 1m in length! Polyprion americanus I believe. [17:36:05] LAT : 33.574432 , LON : -76.465605 , DEPTH : 398.3706 m, TEMP : 8.58513 C, SAL : 35.11288 PSU, DO : 4.25017 mg/l [17:38:35] @Leslie A summary on some of the sponges I've seen: some true geodia, a couple of small aphrocallistes (probably A. beatrix), some round smooth demosponges that I'm not sure of. [17:39:06] anemones are not so educated to attend a school... they are just crowding [17:39:41] @Tina Hahaha! I love it! [17:41:06] LAT : 33.574434 , LON : -76.46556 , DEPTH : 396.3265 m, TEMP : 8.5794 C, SAL : 35.11126 PSU, DO : 4.24927 mg/l [17:42:06] Anthothelia perhaps. [17:42:18] but I have to wait for a zoom [17:43:45] So pretty! [17:45:53] do you think we can scoop and collect them together with rubbles? just thinking... [17:46:06] LAT : 33.574423 , LON : -76.465501 , DEPTH : 392.0596 m, TEMP : 8.57663 C, SAL : 35.11104 PSU, DO : 4.24227 mg/l [17:50:00] @Nolan - what's the sponge? [17:51:05] @asako - the pilots don't think that'll work, unfortunately. [17:51:09] LAT : 33.574228 , LON : -76.465291 , DEPTH : 380.754 m, TEMP : 8.5815 C, SAL : 35.11464 PSU, DO : 4.2717 mg/l [17:51:58] scottharris leaves the room [17:52:35] @Leslie I'm looking! [17:52:51] Not in the animal guide per se [17:53:10] thanks for looking! [17:54:06] @leslie Of course and you're welcome! [17:54:33] @Leslie: understand! [17:56:07] LAT : 33.574139 , LON : -76.465198 , DEPTH : 385.5301 m, TEMP : 8.59021 C, SAL : 35.11734 PSU, DO : 4.2831 mg/l [17:57:25] is it black coral? [17:57:40] no [17:57:50] hydroid [17:58:16] but it is interesting, because it has umbellum-like form [17:58:31] @Tina: glad you are on now. Earlier I couldn't tell if this was hydroid or black coral. After seeing enough of them we decided it was hydroid as well. [17:58:45] we had agreement with hydroids :) [17:59:02] @scott, colony form is really particular [18:01:08] LAT : 33.574138 , LON : -76.465175 , DEPTH : 386.2066 m, TEMP : 8.58857 C, SAL : 35.11451 PSU, DO : 4.27391 mg/l [18:02:07] @Sci: please tell Stephanie this is not Plumarella (octocoral) but a hydroid (for sample database info, etc) [18:04:47] Zachproux leaves the room [18:05:49] Could we maybe get the urchin in the scoop too? It looks broken anyway [18:06:08] LAT : 33.574141 , LON : -76.465175 , DEPTH : 386.2589 m, TEMP : 8.58022 C, SAL : 35.11296 PSU, DO : 4.25566 mg/l [18:06:31] We can try @megan [18:06:44] broken urchin can be better preserved! [18:06:59] @Scott, we have this sample recorded as hydroid [18:11:09] LAT : 33.574134 , LON : -76.465169 , DEPTH : 386.189 m, TEMP : 8.5797 C, SAL : 35.1121 PSU, DO : 4.25496 mg/l [18:14:16] Awesome, great collection! [18:14:25] @Sci Okay, I think I've gotten the sponges a little more straightened out. So, the fuzzy vase sponge to our bottom left is looks like a Rossellid glass sponge (lookes similar to Acanthascus). The round smooth demosponges, that I had no idea of earlier, also look like Geodia. These look a lot like G. nodastrella or hentscheli. But the only way to know for sure on those is to collect and look at the spicules under the scope. [18:16:10] LAT : 33.574147 , LON : -76.465176 , DEPTH : 386.2759 m, TEMP : 8.57745 C, SAL : 35.11205 PSU, DO : 4.25545 mg/l [18:18:21] greenish corals [18:19:00] Don't recognize from distance... [18:19:21] they look octocorallish, but [18:20:01] we are quite shallow [18:20:10] Interesting. No iidea what it is. [18:20:17] collect? [18:20:31] I'd love to see a collection of it... [18:20:41] collection agree [18:20:53] ...but I'm not as familiar with these "shallow" octocorals [18:21:08] agree with collection! [18:21:16] LAT : 33.574138 , LON : -76.465093 , DEPTH : 386.5237 m, TEMP : 8.57417 C, SAL : 35.11021 PSU, DO : 4.23838 mg/l [18:21:30] I just think... that as well as scott I am particularly bad with shallow ocotos [18:21:49] Its a beautiful coral [18:22:01] Whatever it is, the skeleton base is very thick suggesting it has been growing here a long time. [18:22:06] it has to turn grey ib alcohol [18:22:26] My sense is it is not a plexaurid... but who knows! [18:22:46] I would like to see how stem cross section look like [18:23:02] gorgonodae may be yellow? [18:23:29] Yes, some Gorgoniidae are yellow. [18:23:56] gorgonidae... yes... scott you are right. it is not destructice.. I became an addict to Okeanos Explorer dives [18:24:23] we can cut it on deck it is not a problem [18:24:37] @Tina You're not alone. [18:24:51] I think comment on stem could refer to any branch. But collecting near base could allow for some aging. [18:24:59] Hello my name is Nolan Barrett. I am an Okeanos Explorer additc. [18:25:12] *addict [18:25:30] take s\the scleractinian stalk! [18:26:09] Maybe a Muriceides...? [18:26:22] LAT : 33.574154 , LON : -76.465091 , DEPTH : 386.5444 m, TEMP : 8.57299 C, SAL : 35.10912 PSU, DO : 4.23672 mg/l [18:26:25] @scott... it seems quite...flexible. you sure it is not a bamboo))) [18:27:06] @Tina: I'm not sure of anything right now!! [18:27:58] Me neither, but We can take a look at the base once we get it back to the ship! [18:28:34] @Nolan, we welcome addicts- you're in a safe place [18:28:53] @Cheryl Thank you! [18:29:10] there are some yellow bamboo, with tiny polyps. forgot the name. Chelidonisis? [18:30:25] @Tina: what is the depth for it? shallow? [18:31:11] LAT : 33.574157 , LON : -76.465094 , DEPTH : 386.609 m, TEMP : 8.57217 C, SAL : 35.10843 PSU, DO : 4.23661 mg/l [18:31:28] not really deep.. 300-500, may be 600-700 [18:32:46] @Tina: thank you! [18:33:00] Chelidonisis aurantica... it has to be yellowish [18:33:29] @leslie, let us know, if it turn grey in alcohol? [18:34:06] we are all Okeanos Explorer addict :) [18:36:12] LAT : 33.57405 , LON : -76.465112 , DEPTH : 385.4595 m, TEMP : 8.5732 C, SAL : 35.10824 PSU, DO : 4.22932 mg/l [18:36:57] can we have another close upo? [18:39:17] yes, but zoom will be good [18:39:40] Looks like Asteroschematid ophiuroid [18:40:01] can we zoom little up and left? [18:41:12] LAT : 33.574058 , LON : -76.465056 , DEPTH : 385.0844 m, TEMP : 8.57238 C, SAL : 35.10825 PSU, DO : 4.23644 mg/l [18:43:22] And in the GoMex, Chelidonisis in my collection comes from 539 m depth, so that is consistent, e.g. a relatively shallow water bamboo coral [18:44:10] The images I have of collected Chelidonisis don't look much like this, but they are not great images to be sure. [18:44:25] its really beautiful view [18:44:43] Hey, I am not sure that it is a bamboo yet, but between others.. [18:45:12] I would ask for another close-up [18:45:26] I think I am leaning more to Muriceides than to Chelidonisis [18:46:13] LAT : 33.574032 , LON : -76.465081 , DEPTH : 384.0889 m, TEMP : 8.57561 C, SAL : 35.10769 PSU, DO : 4.22902 mg/l [18:46:22] @scott, the stem is.. strange...too thick. I have no idea. may be Muricides. [18:47:40] andrea is not here [18:48:57] I have seen other plexaurids that have such thick stem bases, but I agree with you that seems more like a keratoisidid characteristic (though Chelidonisis is not a keratoisidid based on phylogeny) [18:51:13] LAT : 33.57402 , LON : -76.465058 , DEPTH : 383.789 m, TEMP : 8.57432 C, SAL : 35.1091 PSU, DO : 4.22256 mg/l [18:52:12] Hello everyone, just joining in. wow, nice deep seascape :-) [18:52:50] @Joana Do you have an idea about what the fuzzy roundish vases are? I was thinking they looked a little like some Rossellid Acanthascus pictures from the Pacific. [18:53:43] @nolan, it's definitely a Rosselidae, I suspect it may be Vazella pourtalesi, but I'd need a zoom in to be sure [18:54:01] Hi Joana! [18:54:51] @Joana Ah! Okay! Thank you! Since we have seen a few on most of the dives, I suggested a collection in the future because we just filled all of our collections for today. [18:56:14] LAT : 33.573943 , LON : -76.465068 , DEPTH : 382.8004 m, TEMP : 8.57694 C, SAL : 35.11041 PSU, DO : 4.2369 mg/l [18:56:29] oh noooooo... no more collections today? That's a very interesting species [18:57:50] it would be great to have some specimens of this species for molecular analyses [18:58:15] @Joana We filled all boxes so quickly. But it looks like its kind of common. [18:58:52] :-D [18:59:06] Indeed! So hopefully collections of it in the near future! [19:01:07] @unfortunately, we thought we'd lost sample 1, so we collected a second specimen and put it in a different box, only to find that we had both, taking up 2 boxes. [19:01:17] LAT : 33.573903 , LON : -76.464973 , DEPTH : 376.5548 m, TEMP : 8.57448 C, SAL : 35.10949 PSU, DO : 4.23233 mg/l [19:06:15] LAT : 33.573875 , LON : -76.46494 , DEPTH : 374.4962 m, TEMP : 8.57253 C, SAL : 35.10735 PSU, DO : 4.21529 mg/l [19:09:44] Question from the audience: Joe Vaughn I'm sure you have addressed this already, but would you explain why there is so much dead coral on the bottom, what species? Thank you! [19:11:15] LAT : 33.57378 , LON : -76.464987 , DEPTH : 373.5913 m, TEMP : 8.57668 C, SAL : 35.11158 PSU, DO : 4.25598 mg/l [19:12:52] Hmmm... Is this similar to the "Eunicella" we collected last week? [19:13:23] I was wondering that also @scott [19:13:38] agree with that it is similar but not sure it is Eunicella or not... [19:13:43] heatherjudkins leaves the room [19:13:47] Okay - lets stick with that Cheryl! :-) [19:15:38] Hello [19:15:48] @Sci Since the sponges are becoming so much more common, and that our bioboxes are full, can we please zoom real close on some of the Vazella? sponges for Joana? [19:16:03] @Iris Welcome! [19:16:22] LAT : 33.573692 , LON : -76.465021 , DEPTH : 373.7639 m, TEMP : 8.57443 C, SAL : 35.10995 PSU, DO : 4.22971 mg/l [19:16:31] Thanks @nolan [19:17:03] Thanks Cheryl for answering that! [19:17:12] Hi Iris [19:18:06] irissampaio leaves the room [19:18:15] New question from the audience: Linda Stalnaker: Can squat lobsters close their claws? They seem to always to be open. [19:19:41] Hi @asako [19:19:54] @ Iris. We will zoom. [19:20:03] are these sharks pregnant? [19:20:19] @Cheryl Thank you! [19:21:10] irissampaio leaves the room [19:21:16] LAT : 33.573642 , LON : -76.465007 , DEPTH : 374.1795 m, TEMP : 8.57417 C, SAL : 35.10896 PSU, DO : 4.23725 mg/l [19:21:41] @joana I think so [19:21:59] yes! beautiful, thanks!!! [19:22:08] Earlier Ken Sulak suggested they had had a "nice meal" [19:22:22] I do think it's Vazella [19:22:47] @Joana Awesome! [19:23:06] @Adrienne: Yes,they can close those claws. [19:23:43] irissampaio leaves the room [19:23:55] @Adrienne: certainly when they are grasping food. [19:24:03] hydroid, perhaps that we collected [19:24:17] Yes, the one we collected. [19:25:08] it is.. quite low diversity [19:25:37] I've been away from audio for a while... Are we near the top of this feature now? The anemones seem to have picked up in abundance. [19:25:48]