[01:15:02] chat-admin leaves the room [04:44:20] kaseycantwell leaves the room [04:44:50] kaseycantwell leaves the room [09:57:56] EX1806_DIVE15 ROV powered off [10:47:15] scottharris leaves the room [11:08:26] Morning everyone- it's a beautiful day out here and we are on station. There is a lot fo fishing traffic currently in the area, but based on the current situation, we are moving ahead. Our bridge team will be keeping a eye on the traffiv, and will be evaluating the situation throughout the day as needed. [11:16:51] kaseycantwell leaves the room: Replaced by new connection [11:33:48] chat-admin leaves the room [11:34:07] EX1806 DIVE16 Test message [12:22:00] EX1806_DIVE16 ROV Launch [12:29:44] EX1806_DIVE16 ROV on Surface [12:30:15] EX1806_DIVE16 ROV Descending [12:30:30] LAT : 35.707358 , LON : -74.810445 , DEPTH : 2.6265 m, TEMP : 4.9729 C, SAL : 5.0095 PSU, DO : 30.67968 mg/l [12:36:04] LAT : 35.707221 , LON : -74.810498 , DEPTH : 55.5767 m, TEMP : 10.02515 C, SAL : 34.07852 PSU, DO : 7.50929 mg/l [12:41:04] LAT : 35.707006 , LON : -74.810885 , DEPTH : 151.0825 m, TEMP : 12.67478 C, SAL : 35.42332 PSU, DO : 6.86421 mg/l [12:46:05] LAT : 35.706698 , LON : -74.810811 , DEPTH : 307.6752 m, TEMP : 10.93235 C, SAL : 35.37424 PSU, DO : 4.13283 mg/l [12:51:05] LAT : 35.706698 , LON : -74.811218 , DEPTH : 409.8682 m, TEMP : 7.57359 C, SAL : 35.109 PSU, DO : 5.09577 mg/l [12:52:34] @kasey...The reason for that shipping traffic is of course the high productivity of this area, which is part related to the export of all that yummy carbon from the seafloor that can help feed the bottom of the food chain! [12:55:02] @ sci Good show to use the NG database seeps and then the new ones I sent for this cruise as secondary....As Derek pointed out/per my emails this morning, some of the new EK60 seeps are probably the same as the ones we got from multibeam for the Nat Geo paper in 2014, but some might be new. [12:56:06] LAT : 35.706826 , LON : -74.811563 , DEPTH : 410.0018 m, TEMP : 7.50562 C, SAL : 35.10723 PSU, DO : 5.13175 mg/l [13:01:06] LAT : 35.706833 , LON : -74.811778 , DEPTH : 409.8325 m, TEMP : 7.50103 C, SAL : 35.10674 PSU, DO : 5.12814 mg/l [13:04:43] @ sci Seeps we will traverse today were all Quality Factor #1 in the original Nat Geo database. They look not as impressive generally in the 2017 EK60 data, but there is higher conc of CH4 at the seafloor here and good plumes from the earlier MBES. Even if no chemos, should definitely be some indicators of seepage [13:06:06] LAT : 35.707199 , LON : -74.812349 , DEPTH : 409.822 m, TEMP : 7.56532 C, SAL : 35.10833 PSU, DO : 5.08571 mg/l [13:06:44] Ship was drifting, so we are reacquiring WP1 [13:07:44] cherylmorrison leaves the room [13:09:32] @ bob--We're diving on a series of 4 seeps today IDed first in the Nat Geo database in 2014. I found some of them again in the EK60 data we collected here last Aug/Sept. On that cruise, we did CTDs right through this seep field to look at CH4 conc/isotopic sig, age of C in CH4, oxidation state, etc.---John Kessler's group at Rochester was in charge of that. [13:11:07] LAT : 35.707686 , LON : -74.812736 , DEPTH : 409.9988 m, TEMP : 7.53462 C, SAL : 35.10632 PSU, DO : 5.12498 mg/l [13:15:07] @carolyn Thks...I'll have to miss most of 1st couple of hours. [13:16:07] LAT : 35.707616 , LON : -74.812805 , DEPTH : 508.8664 m, TEMP : 6.11336 C, SAL : 35.06082 PSU, DO : 6.35055 mg/l [13:17:05] 2 for 1 collection [13:17:41] EX1806_DIVE16 ROV on Bottom [13:19:41] @bob Amanda said Sentry dove here too last year [13:20:38] robertcarney leaves the room [13:21:08] LAT : 35.70781 , LON : -74.812911 , DEPTH : 517.0203 m, TEMP : 5.83515 C, SAL : 35.04872 PSU, DO : 6.57834 mg/l [13:21:45] straw like things might be quill worms, if you can get a closer look [13:22:22] quill worms def- there might be live ones inside the tubes- type of polychaete [13:23:11] quill worms: hyalinoecia (fun to pronounce ;)) [13:24:34] abundance of quill worms are a good indication of lots of organic matter, and i saw a mat just before we landed [13:24:52] @amanda...yes there were some mats [13:26:08] LAT : 35.707811 , LON : -74.81284 , DEPTH : 519.5221 m, TEMP : 5.73864 C, SAL : 35.04456 PSU, DO : 6.66536 mg/l [13:26:10] wow, lots of swimmers in the water-might be some amphipods mixed in here [13:29:38] @sci Can you say on the audio what you are analyzing Niskin samples for? [13:31:09] LAT : 35.707693 , LON : -74.812861 , DEPTH : 516.3501 m, TEMP : 5.75351 C, SAL : 35.04537 PSU, DO : 6.64877 mg/l [13:31:52] @sci- you might not "consume" them, but the ROV often gets castaways (accidental collections) with these swarms, getting stuck, much like the snipe eel [13:36:09] LAT : 35.707688 , LON : -74.812797 , DEPTH : 514.0526 m, TEMP : 5.71616 C, SAL : 35.04293 PSU, DO : 6.67935 mg/l [13:41:10] LAT : 35.707684 , LON : -74.812666 , DEPTH : 512.5977 m, TEMP : 5.84814 C, SAL : 35.04934 PSU, DO : 6.56563 mg/l [13:43:19] we have imaged the quill worms scooting along the sediment surface, head first, carrying its house with it [13:43:31] they love to scavenge [13:44:56] @amanda, feel free to call in and talk about any of these guys :) [13:45:23] thanks- i'm trying to participate, but have a few kid shuttle activities to do today - sorry to be so MIA [13:46:10] LAT : 35.707626 , LON : -74.812618 , DEPTH : 510.778 m, TEMP : 5.78523 C, SAL : 35.04639 PSU, DO : 6.62948 mg/l [13:46:23] okay- no worries! [13:50:38] worm looked like something different, but didn't catch it before the dust storm [13:51:11] LAT : 35.707523 , LON : -74.812456 , DEPTH : 503.6218 m, TEMP : 5.88408 C, SAL : 35.05055 PSU, DO : 6.53479 mg/l [13:51:53] maybe we'll see more! [13:52:37] so quill worm- that is the head end- with long antennae/head parts [13:54:10] http://mugga.se/photo/2466/hyalinoecia_tubicola [13:56:11] LAT : 35.70745 , LON : -74.812419 , DEPTH : 500.0969 m, TEMP : 6.00495 C, SAL : 35.05643 PSU, DO : 6.42215 mg/l [14:01:12] LAT : 35.707371 , LON : -74.812279 , DEPTH : 496.0447 m, TEMP : 6.00047 C, SAL : 35.0601 PSU, DO : 6.41787 mg/l [14:06:12] LAT : 35.707248 , LON : -74.812197 , DEPTH : 490.9478 m, TEMP : 6.08292 C, SAL : 35.05671 PSU, DO : 6.3518 mg/l [14:06:22] @sci snail collection would be good for ID. we collected buccinids in the canyons up north (Colus sp.), but i'm not sure what this one is [14:07:17] ooh i missed the discussion about the nemertean collected yesterday- how did it look? [14:09:13] these sediments are actually very rich in planktonic foraminfera...terrigenous material abundance is variable as sources are currently somewhat limited (most of the rivers sending material to the shelf and upper slope are north of here) [14:11:13] LAT : 35.707254 , LON : -74.812236 , DEPTH : 490.8483 m, TEMP : 6.07265 C, SAL : 35.06007 PSU, DO : 6.03876 mg/l [14:13:02] mat + zoarcid, seems like they like the stinky mud :) [14:16:13] LAT : 35.707131 , LON : -74.811988 , DEPTH : 483.338 m, TEMP : 6.08798 C, SAL : 35.06542 PSU, DO : 6.2777 mg/l [14:18:14] Onuphidae? [14:18:42] increadible.I have never seen them feeding [14:19:14] hi to all [14:20:56] quill worms have quite jaws. put it in highlights - quilworm chasing a squid [14:21:09] Hi Tina- thankns for joining! [14:21:16] LAT : 35.707076 , LON : -74.812039 , DEPTH : 482.2235 m, TEMP : 6.16489 C, SAL : 35.06318 PSU, DO : 6.15976 mg/l [14:21:25] whitcheel? [14:22:24] too early for the fish people, ha :) [14:22:50] you saw a batfish? [14:23:25] a small one [14:23:40] missed it, oh well [14:25:22] bubbles seem squished/compressed to me [14:25:58] yes, they aren't wobbling as much as the other day, but they are compressed by the pressure [14:26:14] LAT : 35.707141 , LON : -74.812023 , DEPTH : 483.0215 m, TEMP : 6.149 C, SAL : 35.06455 PSU, DO : 6.25545 mg/l [14:26:36] another squid feeding. what they are eating? [14:27:15] hello all [14:27:29] hi asako, good night) [14:27:38] Hi Asako! [14:28:09] Hi Tina, Hi Cheryl! its amazing view! [14:28:29] did i just hear marshmellow? [14:28:36] nor a coral dive, but quite enjoyable) [14:29:28] @amanda, yes, couldn't help but say marshmellow to try to convey what that looked like! Hope that doesn't get taken out of context. Mining for marshmellows... [14:29:44] @Daniel - are you at the SC Aquarium today? [14:30:02] as i mentioned on the call yesterday, these mats have super high densities of infauna, so good concentrated food source (grocery store or as cheryl put it, 24 hr buffet) in the middle of lower food concentrated areas [14:30:19] now i want a smore [14:30:32] danielwagner leaves the room [14:31:14] LAT : 35.706999 , LON : -74.81197 , DEPTH : 477.9708 m, TEMP : 6.18801 C, SAL : 35.0659 PSU, DO : 6.20352 mg/l [14:33:21] anyone having issues watching stream 3? i can't get it to load, but stream 1 is fine [14:34:07] yes...i'm having lots of problems today,including that one [14:34:22] @Amanda: same. I cannot have Stream 3. but stream 1 is fine. [14:34:49] looks like anemone [14:34:58] @asako, thanks- was trying to keep up with the track and sonar, but can't see it without stream 3 [14:35:08] checking on stream 3 thanks [14:35:18] i'll plot position in GIS and let you know where we are [14:36:05] i have the lat/longs and GIS open, just really wanted to see the sonar :) [14:36:21] LAT : 35.706974 , LON : -74.811988 , DEPTH : 476.4417 m, TEMP : 6.22085 C, SAL : 35.06591 PSU, DO : 6.15181 mg/l [14:36:31] k [14:36:46] question from the audience for the ROV team: Tyler Kronebusch Addition of the fog lights seems to be a success. Thoughts? Ideas? Ever though of an LED mounted to the craft wrist to use as a "flashlight" for hole peering? [14:41:16] LAT : 35.706856 , LON : -74.811968 , DEPTH : 473.5551 m, TEMP : 6.23981 C, SAL : 35.06628 PSU, DO : 6.13938 mg/l [14:41:30] Hey all - we need to reset the feeds to re-establish video feed three [14:41:42] you should potentially have a loss for less than a minute [14:42:23] understand. thank you Kasey. [14:42:31] thanks! [14:43:39] Hyalinoecia tubicola? [14:43:59] @scott yes [14:44:08] loads of them [14:44:25] the feeds should all be back up [14:44:40] Cool - don't recall seeing them on an OkEx dive before. [14:44:56] yippee stream 3 works! [14:45:42] we saw them in abundance in the ex 2013 dives, there are loads of them in some of the canyons due to high deposition of organic matter (available food) , plus we saw them near the seeps [14:46:16] LAT : 35.706775 , LON : -74.811966 , DEPTH : 473.3767 m, TEMP : 6.28041 C, SAL : 35.06741 PSU, DO : 6.11733 mg/l [14:46:28] wow! [14:47:15] tinamolodtsova leaves the room [14:47:16] extensive mat is consistent with what we imaged with sentry dive here [14:47:29] @Amanda: must have been during that set of dives when I was away from internet on vacation. That is what I get! [14:48:20] Big snail...the mystery early 2 dives ago [14:48:38] Looks whelk-ish... [14:48:50] Whelks plow their way through sediments. [14:49:10] I mean plow submerged to semi-submerged in sediments. [14:49:38] @scott, i know think u are ever away :) you have eyes in the back of your head, right? [14:50:26] @Amada: those extra eyes don't work without internet... [14:50:59] @scott... hmm i thought they were super powers that transcended all media [14:51:15] ok i'll stop now [14:51:23] LAT : 35.706792 , LON : -74.811993 , DEPTH : 472.7035 m, TEMP : 6.33266 C, SAL : 35.06733 PSU, DO : 6.12444 mg/l [14:51:42] ideas about upright tube? [14:53:19] r we close to the upright tube? i missed it while joking with scott :) [14:53:43] It's behind us now- we'll keep eyes peeled for more [14:53:58] it looked like these others. did one of them just move? [14:54:10] oh well, thanks [14:54:37] when you see another, can we spend a minute looking at the tubes? [14:54:50] dead Calyptogena of Lucinid [14:55:01] @erik, the tubes that we have been seeing are quill worms, most appear occupied with the worm, lots of them [14:55:01] scottharris leaves the room [14:55:04] or not of [14:55:08] Yes Erik for sure [14:55:08] RotjanLab leaves the room [14:56:02] we are several tens of meters from the nearest map seep, which makes this site even more interesting...we are kinda between mapped seep sites from the Nat Geo database and from the USGS 2017 cruise [14:56:17] LAT : 35.706783 , LON : -74.812066 , DEPTH : 472.9711 m, TEMP : 6.35927 C, SAL : 35.07079 PSU, DO : 6.06976 mg/l [14:58:25] tubeanemone [14:58:40] perheps botrucnidifer [14:59:25] Bubbles and mats were identified here last year during the September Pisces cruise [14:59:36] name of the quilworm apparently Hyalinoecia artifex [15:00:20] Natalya Budaeve is asking, if it is possible to collect worm? preservetion in alcohol [15:00:41] erikcordes leaves the room [15:01:16] ooh batfish! [15:01:28] LAT : 35.706671 , LON : -74.812046 , DEPTH : 471.2643 m, TEMP : 6.51115 C, SAL : 35.07691 PSU, DO : 5.92759 mg/l [15:01:43] na-na-na-na-na-na-na-na, na-na-na-na-na-na-na-na, Batfish! [15:01:56] bivalves right of fish [15:02:09] Sorry. I blame Saturday morning cartoons. [15:02:31] Greetings from SC Aquarium [15:02:40] Excellent Leslie!! :-) [15:02:50] hi daniel) [15:02:56] Made you do it! [15:04:27] I did NOT sing it! [15:05:07] (that theme song dates us, you know...) [15:06:18] LAT : 35.706657 , LON : -74.81193 , DEPTH : 471.0229 m, TEMP : 6.62584 C, SAL : 35.08072 PSU, DO : 5.83379 mg/l [15:06:30] @Sci FYI easly characterization of the benthos off NC and VA was carried out in 60's - 70's by Robert Menzies and his student Gil Rowe then at Duke and by Jack Musik and his student Ken Sulak then at VIMS. Seeps were not recognized in that trawling/coring [15:06:34] @Leslie: good point. [15:06:49] early..not easly [15:07:04] Didn't get a great look, but did "feel" molliuscan [15:08:47] danielwagner leaves the room [15:10:18] @ sci @ Carolyn ....any possibility that bubble plumes make noise such that the Navy might hear or have heard them during ASW listening? [15:11:18] LAT : 35.706669 , LON : -74.812087 , DEPTH : 470.9365 m, TEMP : 6.72732 C, SAL : 35.08377 PSU, DO : 5.72913 mg/l [15:11:22] it was not real 6-arm, it was 5-and-half-arm [15:12:33] @bob sorry--had to step away. Yes hydrophones are used to listen for bubbles. [15:12:50] @bob PMEL just finished doing this for a little while on the NW Pacific seeps on the Nautilus this week [15:13:48] @bob there have been also more complicated hydrophone arrays put down to listen for bubbles [15:14:43] RotjanLab leaves the room [15:16:10] I don't know for certain, but I recall being told that the Navy installed SOSUS listening arrays at bout this depth off NC and VA...in 60' Wonder if the heard anything? Secret if they did [15:16:19] LAT : 35.706598 , LON : -74.812129 , DEPTH : 469.5174 m, TEMP : 6.79069 C, SAL : 35.08619 PSU, DO : 5.69533 mg/l [15:17:31] Just coming on, I don't know if anyone has discussed the geochemical record stored in bivalves. These are good records that may be interesting to collect (for someone who does this type of geochemistry). [15:17:35] Thyasira, Lucinidae may be found at seeps [15:17:36] @bob as you know, it also depends on the frequency the hydrophones are tuned to, sensitivity,e tc. Bubbles have also been detected going off sometimes on broadband ocean bottom seismometers deployed for other reasons. [15:18:03] shells are always useful, if you find carbonate, even better :) [15:18:34] @scott It would be best to get a shell with provenance...one attached to seafloor, if we have that option. [15:18:57] @carolyn definitely. In situ and alive would be best [15:20:02] with these black dots it looks more like salp [15:21:19] LAT : 35.706495 , LON : -74.812232 , DEPTH : 467.5275 m, TEMP : 6.86157 C, SAL : 35.08864 PSU, DO : 5.61809 mg/l [15:21:26] SOSUS was primarily tuned for deployment in the sofar channel to capture low-frequencies, but the frequencies being listened for have changed over time (most recently adding higher active frequencies) [15:21:37] erikcordes leaves the room [15:22:53] @ sci...any living chemo Lucinid or related bivalves should be deeply buried...if vesycomids are present they should be on the mud. [15:23:47] just an anemone, but with big A [15:23:57] @Tina: what are the black dots? [15:24:29] @Cheryl, [15:24:36] that seems like a good guess [15:24:53] stomach [15:25:19] headed to piano, talk to you later! [15:25:40] these squids.. they cannot be just trapped during diurnal migration? [15:26:20] LAT : 35.706517 , LON : -74.812313 , DEPTH : 466.2227 m, TEMP : 6.8837 C, SAL : 35.09138 PSU, DO : 5.57654 mg/l [15:27:26] nice shrimp [15:29:53] Hagfish? [15:30:26] hagfish...I thought they cannot swallow whole things... [15:30:55] No, it was not the hagfish that caught the squid. [15:30:57] It was the wrymouth (ID still ?) that ate the squid [15:31:05] these anemone with big A are apparently Hormathiidae [15:31:15] I thought I saw a hagfish AFTER we moved from the predation event. [15:31:20] LAT : 35.706378 , LON : -74.812318 , DEPTH : 463.8022 m, TEMP : 6.7811 C, SAL : 35.08698 PSU, DO : 5.6951 mg/l [15:31:42] and here sipho that was pink [15:32:33] it is late afternoon here and dark night for asako (who probably fall asleep) [15:32:37] very likely- we've seen many hagfish today, some burried and others swimming near bottom [15:33:39] Hmmm... parasitized fish or pregnant? Saw bulge on left side. [15:34:13] Bulged on both sides, so likely not a parasite [15:34:24] but she (or he) likes the borrow [15:34:49] I like Leslie's idea that perhaps it is getting ready to release eggs into a burrow... Do they do that? [15:35:48] Aha! I did see a hagfish! :-) [15:36:21] LAT : 35.706379 , LON : -74.812433 , DEPTH : 463.2771 m, TEMP : 6.76272 C, SAL : 35.08872 PSU, DO : 5.70475 mg/l [15:38:20] Passed a Bathypolypus octopus on right, I think. Unless it was an Illex from odd angle. [15:38:30] @sci,,,any idea how far lt and rt of ROV transit line the bacterial mats extend? [15:39:28] @Scott - I think (not sure) it was an Illex squid [15:40:00] @Leslie: that would certainly make more sense based on what we've seen today. [15:40:29] But it looked octopuss-y (no James Bond reference intended) [15:40:57] @cheryl thanks for pan [15:41:21] LAT : 35.706331 , LON : -74.812594 , DEPTH : 459.8408 m, TEMP : 6.80916 C, SAL : 35.08666 PSU, DO : 5.66104 mg/l [15:42:44] @Carolyn...I know little about Beggiatoa, but I believe this large filament microbe can move up/down and about...some fine mat structure may reflect that. [15:43:22] @bob....that's cool...does the chemistry have to be right in the seds just below the mats? Do the mats "grow" outward or in some other way? [15:44:44] Is it all Beggiatoa? Thought I'd heard there were several bac types that could be involved in these mats [15:46:22] LAT : 35.706288 , LON : -74.812631 , DEPTH : 457.6653 m, TEMP : 6.87177 C, SAL : 35.089 PSU, DO : 5.61425 mg/l [15:46:42] Stream 3 looks to be down again, may need resetting on the ships side [15:47:52] @carolyn a number of cores have been taken within mats and then adjacent. Findings generally interpreted as localized high sulfide possibly with the mat actually "trapping" some diffusion. The mats do not seem to grow above mud unless there is something there like a plastic mesh. Push cores taken in a mat and then stored in cold room over night have impresssive ~~5cm streamers going down core...growth? [15:48:46] yes, aware of the sulfide story, but cool about the growth overnight and all...i always wonder whether patches grow laterally to merge etc Thanks! [15:49:26] @sci amanda is asking if you could put the lasers on please [15:49:31] @ Cheryl..."Beggiatoa" is just sloppy microbial taxonomy on my part...examination always required! [15:50:23] thank you [15:50:42] Roger that @Bob. Just read a new spp was described last year. Bet there's a lot more work to do with them [15:51:22] LAT : 35.706239 , LON : -74.81284 , DEPTH : 455.1142 m, TEMP : 6.88255 C, SAL : 35.08934 PSU, DO : 5.6066 mg/l [15:52:56] we need to reset the video for a minute. sorry for interuption [15:53:33] jennahill leaves the room: Replaced by new connection [15:54:22] @sci @ carolyn ...some bact mats remind me of slime mold patterns....http://www.comafungi.org/wp-content/uploads/2014/11/2014-09-COMA-Foray-130.jpg [15:56:22] LAT : 35.706209 , LON : -74.812877 , DEPTH : 453.9452 m, TEMP : 6.86499 C, SAL : 35.08869 PSU, DO : 5.61221 mg/l [15:57:56] this one may be tubeanemone [16:01:23] LAT : 35.706177 , LON : -74.812803 , DEPTH : 452.7209 m, TEMP : 6.88213 C, SAL : 35.08923 PSU, DO : 5.59352 mg/l [16:03:33] @ cheryl ...oxidation of hydrogen sulfide yields a great amount of energy [16:05:14] not only is H2S deadly and stinks...it can explode! [16:05:24] @sci So you are veering off the plume path and sticking with following mats? [16:06:00] and Bob, as you know, we usually need H2S alarms on ships when we core these sediments or drill them lest people be overcome by H2S [16:06:23] LAT : 35.706144 , LON : -74.812822 , DEPTH : 452.5586 m, TEMP : 6.91267 C, SAL : 35.08939 PSU, DO : 5.54888 mg/l [16:06:30] We are following the mats, deviating slightly from our track line, not the plumes [16:07:19] @cheryl OK thanks....plumes more likely to have non-mat chemos, but who knows mussels/tubeworms etc really occur here anyway or if mats will be the story of the day [16:07:56] danielwagner leaves the room [16:08:13] Might it be better to follow the highest part? We've been debating here [16:09:08] I'm not sure...often gas comes out at locally highest point, but without geophysics to guide us...not sure i'd venture an opinion about best track [16:10:10] Okay, we'll keep following the mats and trying to stay on the higher side [16:10:53] question from the audience: Shireen Gonzaga: Did you get that worm in biology sample 1 from yesterday? What else did you find in the sediment? Were there any brittle stars and other smaller critters? It looks like a fun sample to inspect with a microscope! [16:11:24] LAT : 35.705991 , LON : -74.812867 , DEPTH : 445.0044 m, TEMP : 7.4803 C, SAL : 35.1009 PSU, DO : 4.81067 mg/l [16:13:56] thanks cheryl! [16:15:57] danielwagner leaves the room [16:16:24] LAT : 35.705995 , LON : -74.813024 , DEPTH : 443.1071 m, TEMP : 7.63188 C, SAL : 35.10516 PSU, DO : 4.6647 mg/l [16:21:25] LAT : 35.706007 , LON : -74.813103 , DEPTH : 442.5083 m, TEMP : 7.60266 C, SAL : 35.0864 PSU, DO : 4.68168 mg/l [16:22:00] solenogaster or caudofaveata [16:22:14] I mix them up all the time [16:22:22] the one with furrow [16:23:19] Little guys have gotta start somewhere! [16:23:37] @Tina: solenogastre has the furrow. [16:23:56] then it was solenogaster on tube [16:24:03] Missed it. [16:24:33] Would a collection of it be useful or are they well known? [16:25:04] or nemertea head because it was obviously a furrow [16:25:47] @Cheryl: which are you asking about? [16:25:53] qquilworms? [16:25:56] Solenogastre? [16:26:25] LAT : 35.705998 , LON : -74.81311 , DEPTH : 442.2247 m, TEMP : 7.61909 C, SAL : 35.10006 PSU, DO : 4.93204 mg/l [16:26:28] Solenogastre [16:26:49] If you are asking about solenogastre, we have several collections of the ones thta live and feed on corals. I don't think we've ever collected one in this sort of habitat. [16:27:01] We've had requests for a quill worm also, so hoping we'd get the Solenogastre at same sample [16:27:16] Sure - go for that two-fer. [16:27:25] there are hundreds of them... douzens at least [16:28:20] scoop themn all! [16:28:40] @SCI question from SC Aquarium: what is thr coolest thing you have seen on this expedition? [16:30:21] @Daniel: we can only have one?! [16:30:24] nice accidental cross section of a mat! [16:30:48] @Daniel - seeing the school of wreckfish (>1m each!) was pretty darn cool. But I also really found the rolling fish heads yesterday to be fascinating (their source and that they became immediate food for the benthos!). [16:31:26] LAT : 35.705973 , LON : -74.813064 , DEPTH : 442.3513 m, TEMP : 7.61551 C, SAL : 35.10431 PSU, DO : 4.94358 mg/l [16:31:58] @Daniel - Cheryl just stepped out for lunch. [16:33:15] put quilworm in alcohol. all polychaete researchers like them in 96 alcohol now [16:34:03] danielwagner leaves the room [16:34:22] Ok, thanks Tina. Will do [16:36:26] LAT : 35.705967 , LON : -74.813067 , DEPTH : 442.3299 m, TEMP : 6.90636 C, SAL : 35.09123 PSU, DO : 5.58851 mg/l [16:38:04] salp chains galore [16:38:38] and.. quilworms, sometimes the have babyes inside tube [16:41:27] LAT : 35.705961 , LON : -74.813097 , DEPTH : 441.0045 m, TEMP : 7.03704 C, SAL : 35.09051 PSU, DO : 5.50267 mg/l [16:42:34] danielwagner leaves the room [16:43:03] these are NOT tube anemones [16:43:08] @sci question from the viz lab in Charleston from Beverly: what do you do with the samples you collect? Where do they go? [16:43:16] they are JUST anemones [16:43:22] These are not cerianthids, regular sea anemones [16:44:03] Possible hormathiids. What do you think Tina? [16:46:04] dive 16? [16:46:27] LAT : 35.705965 , LON : -74.813127 , DEPTH : 439.9721 m, TEMP : 7.51921 C, SAL : 35.10077 PSU, DO : 5.05418 mg/l [16:46:29] bathyphelia may have fluffy column [16:47:00] @Daniel, we've seen so many exciting things, but my favorite was the mola mola ocean sunfish we saw at the rocky site [16:49:23] Correction her name is Kimberly and she said thank you for that great answer! She also said she can tell how much you love rocks and sediment, Leslie! [16:49:27] are the lasers on? [16:50:05] southern hake in the burrow this time [16:50:10] @Tina: I'm not familiar with that genus (bathyphelia) [16:51:28] LAT : 35.705922 , LON : -74.813232 , DEPTH : 438.2332 m, TEMP : 7.50234 C, SAL : 35.10752 PSU, DO : 5.04215 mg/l [16:52:01] Hmmm... [16:52:28] Did I just see an eye move? [16:52:42] double l [16:52:51] @sci can we transit with lasers on? sorry to pester [16:53:37] thanks! [16:53:56] You aren't pestering, no worries! [16:54:14] Wouldn't be able to stay like that for long I would think, because it looked like the access to gills would be blocked (for O2). But maybe it can hnag out semi-buried with long antennae "searching" for prey... [16:55:28] @leslie, makes reviewing the video later more useful for folks interested in doing so :) [16:56:28] LAT : 35.705912 , LON : -74.813305 , DEPTH : 436.6066 m, TEMP : 7.64737 C, SAL : 35.10203 PSU, DO : 4.84642 mg/l [16:57:21] I wounder. If there is some sulfides in sediment...can these fish and shrimps ride of parasites swimming in mud? [16:57:39] What a great view. [16:57:48] quill worms look iridescent- shy worm [16:58:00] please.. put it in highlights!!!!! [16:58:13] Obviously having such an unwieldy tube that has to be lugged around is of benefit - likely for protection. [16:58:29] @tina Bob was talking before that these mats have a lot of sulfide under them, and we were talking on the audio about the interplay among AOM, sulfate & sulfide...so probably quite a bit of sulfide here [16:58:34] That looks like asiboglinid! [16:58:40] a siboglinid [16:59:00] The last worm in the cellophane-y tube with a single tentacle [16:59:07] @scott- seemed like there were antennae sticking out [16:59:14] @scott, I think it is same Hyalenoecia [16:59:17] but my screen is small [16:59:51] Are we all talking about the tube that was only partly visible next to the microbial mat? [16:59:56] onuphidae has 5 antennae and it is a way to get them from Eunicidae [16:59:58] The one we collected had that cellophane-y rim to it as well. hope it's the same type of quill worm [17:00:03] @scott- i am [17:00:15] Ah, okay. Didn't realize that. Thanks. [17:00:39] it had a clearish part/like cellophane like you said- seemed like the antennae typical of quill worms, but could look back at video later [17:00:51] the biggest quilworm live in australia [17:00:59] if we found a giant tube worm/sibo then we would be jumping out of our seats [17:01:17] Who knew there would be so much worm excitement on the last few days of this expedition! :-) [17:01:25] @Amanda: lol [17:01:29] LAT : 35.705903 , LON : -74.813327 , DEPTH : 436.0219 m, TEMP : 7.59538 C, SAL : 35.10197 PSU, DO : 4.86525 mg/l [17:01:36] worms are cool [17:01:59] Nemerteans, enteropneusts, various polychates... Come on siboglinids! [17:02:41] we collected and sequenced Hyalinoecia artifex north of here in 2015 [17:03:22] @sci I have you moving farther and farther away from the last seep site (plume 512 from the Nat Geo database)...Tehre was a weak one I had given you farther up the slope, but it is still 135 m away [17:05:41] Can you give us a bearing to it Carolyn? [17:06:29] LAT : 35.705787 , LON : -74.813363 , DEPTH : 433.1094 m, TEMP : 7.71498 C, SAL : 35.10289 PSU, DO : 4.78789 mg/l [17:06:31] robertcarney leaves the room [17:07:12] mud bath [17:08:23] asakomatsumoto leaves the room [17:09:28] well the one closest to you was plume 512, which you did not cross (you were uphill from it); it is now slightly downslope....and behind. i would say that is about 5 degrees E of due N...i don't think the ROV can get there now; the weak one I gave you is about 5 degrees south (I can't measure angles easily) of due east, using the last position of the ROV that I plotted....Is Derek awake? [17:09:51] @amanda, I was going to be a nolan and tell that the giant quilworm also called kingworm can be 2.5 m long))) [17:10:19] wowza tina [17:10:57] More fodder for nightmares... [17:11:15] wonder what i would do if i saw a 2.5m quillworm? like something out of sci fi movies i used to watch on saturdays [17:11:30] LAT : 35.705714 , LON : -74.813421 , DEPTH : 430.8933 m, TEMP : 7.7719 C, SAL : 35.1036 PSU, DO : 4.74107 mg/l [17:11:34] @Amanda: you'd demand a collection! ;-) [17:11:47] @scott, I guess they can bite you a finger.... but fishermen like them as bite - a colleague told me)) [17:11:59] @Amanda: Then you would measure isotopes and tell us what it was feeding on. [17:12:00] @scott for sure, but it wouldnt fit anywhere :) [17:12:13] heatherjudkins leaves the room [17:12:19] @sci with latest position, i have the weak plume I had given you almost due east now...i wouldn't go there until i recheck that plume though...still it was the last one in this seep field [17:12:32] @scott, then you will find they can eat everything) [17:12:45] @Amanda: we'd need to shake it out of its tube. [17:12:57] @Tina Hahaha about the kingworm! I just finished catching up on all of the footage and this dive has been spectacular! [17:13:07] sorry: DUE WEST WEST WEST I always do this! Due WEST of you!!!! [17:13:10] dont be scared of worms, they are very important in breaking down and cycling organic matter- keeping everything in balance [17:13:20] I wonder how the 2.5 m quill worm would fare against the 60 m nemertean...? [17:13:35] @sci yes the last plume is 125 m due west of you now [17:13:44] yep. it lives at Australian beaches) [17:13:52] @sci will check image now [17:14:07] Is that a sponge or polyp on that one tube? [17:14:24] Maybe the snail ios joining in the feast. [17:14:37] not being fed on [17:14:53] deep sea tv feeding frenzy [17:14:59] @Scott I don't know, it looked like both [17:15:17] Based on what I heard earlier from Bernie, quill worms have already been collected and studied form this general area. [17:15:21] @sci I would not put any money on that plume site I gave you due west of here...it is weak...i'd give it quality factor #4 (bad) [17:16:09] @scott see quill worm at lower part of screen-tube is really clear, like the previous one we were chatting about [17:16:30] LAT : 35.705677 , LON : -74.813387 , DEPTH : 430.327 m, TEMP : 7.88171 C, SAL : 35.09731 PSU, DO : 4.64069 mg/l [17:16:41] @carolyn, okay, we're still finding bac mats, so will continue to follow [17:16:47] @Amada: right - thanks. I see that now. [17:17:00] @sci i think that is the best option given where we are right now [17:17:03] @sci another question from the Viz Lab, this time from Travis: how are you able to tell there are seeps in an area? Is it from previous dives or are you able to interpret maps of the seafloor without any ground-truthing? [17:17:08] @Amanda: recently deposited tub ematerial, I guess. [17:17:24] We made one quill worm collection, so we don't need more [17:18:14] @Cheryl: yes, and I thought the main target of that worm collection was actually the possible solenogastre that was on the tube, with the quill worm a bonus. [17:18:28] The clear area at the the anterior ends of the tubes have an internal double or triple valve system [17:18:51] @scott- yes, newer material with less fouling too [17:19:10] @Bernie: to channel water deeper into tube? [17:19:52] We could see the valves opening when the worms were moving, it appears to allow water to flow into the tube [17:20:42] @scott. the answer about your question about quilworm and nemertine: Piece by piece [17:21:30] LAT : 35.705692 , LON : -74.813396 , DEPTH : 429.7354 m, TEMP : 7.90107 C, SAL : 35.10586 PSU, DO : 4.63025 mg/l [17:22:46] cherylmorrison leaves the room [17:23:55] did we get an id on the shiny fish? baracudina/paralepidid or something else? [17:24:46] I don't think we saw this density of quill worms anywhere we had visited in 2015 [17:25:07] barracudina [17:25:23] opportunists [17:25:34] munch munch [17:26:31] LAT : 35.705651 , LON : -74.81349 , DEPTH : 429.3802 m, TEMP : 7.90045 C, SAL : 35.11288 PSU, DO : 4.6497 mg/l [17:26:35] quill worms and gastropods here are roughly analogous predators [17:26:37] and image the 2.5 ... [17:27:57] jennahill leaves the room [17:28:11] @bernie- didn't cindy have a site that she called pick up sticks? with loads of quill worms? might be misremembering... [17:28:30] Yes, that is the upper slope site (iconic pic from NG paper with 7 methane streams behind it) [17:28:36] real horor movi! [17:28:43] replay replay :) [17:29:08] @amanda There is a carbonate date from that pick up sticks site too [17:30:09] Quill worm paper published in 2016: Hyalinoecia artifex: Field notes on a charismatic and abundant epifaunal polychaete on the US Atlantic continental margin [17:30:41] @amanda This is the photo at USGS image gallery: https://www.usgs.gov/media/images/methane-seeps-along-offshore-virginia [17:30:54] @amanda- yes, but I don't remember the numbers being like this. [17:30:57] We don't have enough days on the calendar to support all the diversity we see! [17:31:09] artiflex my colleague told [17:31:13] @bernie "charismatic"? [17:31:29] @Leslie I would love to help with your wet lab prep of the polycheates! [17:31:38] LAT : 35.70561 , LON : -74.813443 , DEPTH : 428.7096 m, TEMP : 7.77076 C, SAL : 35.09645 PSU, DO : 4.73943 mg/l [17:31:53] Oh yes, we loved watching video of them moving [17:32:08] @amanda And that site is the first thing I thought this morning when we started seeing these quill worms, but I'm not going to bring up a biology link since I know nothign about it [17:32:36] When is bamboo coral day? [17:32:52] what is youtube link to this dive? [17:33:11] Hey! Great idea! :-) [17:33:19] @Scott When's your birthday? Have it on that day! [17:33:37] @Tina: you can watch this dive almost immediately on SeaTube (15 min delay) [17:34:02] https://www.youtube.com/watch?v=F2PbxzWJq6k [17:34:26] generally....I do not like seep dives.. they are boring.. slow animals.. a lot of mud... but we have quite an action today [17:34:38] @Tina: https://divelog.oceannetworks.ca/SeaTube [17:34:51] @tina yes, and those corals move so much..... [17:35:46] @bernie- got it. We saw loads in our dives around the canyons (baltimore and norfolk) and collected quite a few for our food web studies too- included in our 2017 balimore canyon paper in meps- we found them on the adjacent slope in abundance [17:36:12] @carolyn, they move tenticals and currents, and I like nice stones)) [17:36:32] LAT : 35.70556 , LON : -74.813457 , DEPTH : 427.2082 m, TEMP : 7.68388 C, SAL : 35.10378 PSU, DO : 4.82165 mg/l [17:36:42] tentacles [17:41:32] LAT : 35.705495 , LON : -74.813494 , DEPTH : 424.8743 m, TEMP : 7.53659 C, SAL : 35.10195 PSU, DO : 4.95091 mg/l [17:46:33] LAT : 35.705406 , LON : -74.813697 , DEPTH : 421.9602 m, TEMP : 7.73372 C, SAL : 35.10193 PSU, DO : 4.74028 mg/l [17:47:57] those worms are amazing! [17:49:19]