[00:01:57] megancromwell leaves the room [10:18:14] NOAA Ship Okeanos Explorer is on station and preparing for a dive at Mona Canyon to depths of 2000-2800 m. Today’s dive will be a two part dive. The first part will start at ~~10 AST and will explore the geology of a giant landslide scarp that is believed to have caused the major tsunami of 1918. The second part will start at ~~14:30 AST and will explore the midwater fauna of Mona Cayon until ~~18:15 AST. [10:18:59] We will have our pre-dive call today at 9:30 AST (8:30 ET) [10:20:00] We would also like to encourage folks to annotate the live video. The link to today's video annotations is: https://data.oceannetworks.ca/SeaTubeV2?resourceTypeId=1000&resourceId=23621&diveId=2140 [10:45:29] danielwagner leaves the room [11:47:50] EX1811 DIVE10 Test message [12:00:38] EX1811_DIVE10 ROV powered off [12:16:41] EX1811_DIVE10 ROV Launch [12:21:30] taraluke leaves the room [12:25:33] EX1811_DIVE10 ROV on Surface [12:26:10] EX1811_DIVE10 ROV Descending [12:27:39] LAT : 18.749088 , LON : -67.591012 , DEPTH : 25.6318 m, TEMP : 28.69884 C, SAL : 36.01487 PSU, DO : 6.01623 mg/l [12:32:39] LAT : 18.749163 , LON : -67.591028 , DEPTH : 80.0446 m, TEMP : 26.30869 C, SAL : 36.96042 PSU, DO : 6.67725 mg/l [12:37:40] LAT : 18.749264 , LON : -67.591018 , DEPTH : 236.129 m, TEMP : 19.56839 C, SAL : 36.65995 PSU, DO : 5.85138 mg/l [12:37:52] Just a reminder that the call will take place in just under an hour at 09:30 AST/08:30 EST. [12:42:40] LAT : 18.749455 , LON : -67.59073 , DEPTH : 389.0118 m, TEMP : 16.09541 C, SAL : 36.21849 PSU, DO : 5.17093 mg/l [12:47:41] LAT : 18.749803 , LON : -67.590389 , DEPTH : 548.8699 m, TEMP : 12.03783 C, SAL : 35.59458 PSU, DO : 4.27468 mg/l [12:52:41] LAT : 18.750063 , LON : -67.590062 , DEPTH : 703.928 m, TEMP : 9.34841 C, SAL : 35.20658 PSU, DO : 4.00505 mg/l [12:57:42] LAT : 18.750205 , LON : -67.589568 , DEPTH : 858.4268 m, TEMP : 7.03588 C, SAL : 35.01342 PSU, DO : 4.71846 mg/l [13:02:42] LAT : 18.750149 , LON : -67.589064 , DEPTH : 1015.9816 m, TEMP : 5.92411 C, SAL : 35.03753 PSU, DO : 6.22192 mg/l [13:06:32] taraluke leaves the room [13:07:43] LAT : 18.750271 , LON : -67.588555 , DEPTH : 1178.2221 m, TEMP : 4.99682 C, SAL : 35.016 PSU, DO : 7.06608 mg/l [13:09:09] jasonchaytor leaves the room [13:12:43] LAT : 18.750445 , LON : -67.588256 , DEPTH : 1331.4056 m, TEMP : 4.56833 C, SAL : 35.00591 PSU, DO : 7.53571 mg/l [13:13:35] jasonchaytor leaves the room [13:17:44] LAT : 18.750614 , LON : -67.588021 , DEPTH : 1483.0885 m, TEMP : 4.36719 C, SAL : 34.99385 PSU, DO : 7.66574 mg/l [13:18:44] We will have the pre-dive call shortly at 9:30 AST (8:30 ET) [13:22:44] LAT : 18.750909 , LON : -67.587712 , DEPTH : 1640.7217 m, TEMP : 4.15521 C, SAL : 34.98517 PSU, DO : 7.76651 mg/l [13:23:23] Steve Auscavitch leaves the room [13:27:45] LAT : 18.751314 , LON : -67.587611 , DEPTH : 1798.0285 m, TEMP : 3.73128 C, SAL : 34.96741 PSU, DO : 7.90943 mg/l [13:28:57] danielwagner leaves the room [13:32:45] LAT : 18.751438 , LON : -67.587312 , DEPTH : 1954.6159 m, TEMP : 3.55356 C, SAL : 34.95928 PSU, DO : 7.9214 mg/l [13:33:21] mashkoormalik leaves the room [13:35:59] taraluke leaves the room: Replaced by new connection [13:37:46] LAT : 18.751264 , LON : -67.587067 , DEPTH : 2109.9982 m, TEMP : 3.50093 C, SAL : 34.95558 PSU, DO : 7.952 mg/l [13:42:46] LAT : 18.751197 , LON : -67.586933 , DEPTH : 2262.3229 m, TEMP : 3.45969 C, SAL : 34.95223 PSU, DO : 7.9128 mg/l [13:47:47] LAT : 18.751234 , LON : -67.587014 , DEPTH : 2425.6683 m, TEMP : 3.24632 C, SAL : 34.94171 PSU, DO : 7.92721 mg/l [13:52:47] LAT : 18.751338 , LON : -67.586998 , DEPTH : 2579.8728 m, TEMP : 3.00559 C, SAL : 34.92806 PSU, DO : 7.95292 mg/l [13:57:48] LAT : 18.751247 , LON : -67.587014 , DEPTH : 2734.62 m, TEMP : 2.84436 C, SAL : 34.91915 PSU, DO : 7.96907 mg/l [13:58:01] bottom in sight [13:58:14] EX1811_DIVE10 ROV on Bottom [14:02:02] angular debris, limited sediment cover [14:02:49] LAT : 18.751513 , LON : -67.587055 , DEPTH : 2762.6676 m, TEMP : 2.84766 C, SAL : 34.91658 PSU, DO : 7.99768 mg/l [14:05:54] if picking up one of these rocks is easy, it would be worth it [14:06:50] correct [14:07:03] Will do jason. [14:07:20] thanks [14:07:49] LAT : 18.751427 , LON : -67.587123 , DEPTH : 2763.3101 m, TEMP : 2.84531 C, SAL : 34.94258 PSU, DO : 7.98505 mg/l [14:12:14] pretty [14:12:50] LAT : 18.751439 , LON : -67.587146 , DEPTH : 2763.8747 m, TEMP : 2.85522 C, SAL : 34.94377 PSU, DO : 7.95908 mg/l [14:13:45] Timestamp (UTC) 20181110 14:12:53 Sample ID EX1811_D10_01G Sample Box PF Field ID loose rock in a pile Longitude, Latitude -67.587146, 18.751439 Depth (CTD) 2763.8663 Salinity 34.94332 Temperature 2.85522 Oxygen 7.95758 [14:16:00] Are the pilots feeling much in the way of bottom current? [14:16:19] will ask pilots [14:16:39] Jason would you like to give some context to the public of what we might be looking for? are you on the call? [14:16:50] or the history of the site? [14:17:50] LAT : 18.751604 , LON : -67.587109 , DEPTH : 2764.473 m, TEMP : 2.82604 C, SAL : 34.94278 PSU, DO : 7.96173 mg/l [14:18:17] "pretty" is the technical term [14:19:04] I can't tell if you're joking here. I'm geologically illiterate :) [14:19:32] stacey, I can on the geology/history...yes on the call now (muted because of background noise), but will have to drop off in the not too distant future [14:19:45] I am never serious [14:22:47] he he [14:22:59] LAT : 18.751379 , LON : -67.58722 , DEPTH : 2763.3057 m, TEMP : 2.85164 C, SAL : 34.94495 PSU, DO : 7.99278 mg/l [14:27:51] LAT : 18.751439 , LON : -67.58724 , DEPTH : 2759.8834 m, TEMP : 2.84688 C, SAL : 34.94567 PSU, DO : 7.97832 mg/l [14:28:06] definitely seems like this debris is part of a smaller discrete failure, rather than the entire wall [14:28:34] Due to the minimal manganese crust and biology, would that indicate that this debris is likely from a more recent event than expected? [14:30:17] yes...recent being somewhat poorly defined, but recent enough to not have accumulated a coating [14:31:19] Cool. Any estimate on an age range that might fall within this range? [14:32:52] LAT : 18.751478 , LON : -67.587419 , DEPTH : 2755.6194 m, TEMP : 2.85287 C, SAL : 34.94507 PSU, DO : 7.97923 mg/l [14:33:08] It can take a million years in some locations for the rock surfaces to accumulate a relatively thin coating depending on the concentration of the minerals in the seawater. I think it is much younger than a million years [14:33:22] probably within the last 1000 or so [14:33:43] Fair enough [14:33:59] Thanks for the info [14:36:46] I'll be gone for about a half an hour but I"ll be back [14:37:52] LAT : 18.751534 , LON : -67.587412 , DEPTH : 2752.1961 m, TEMP : 2.85807 C, SAL : 34.94605 PSU, DO : 7.96813 mg/l [14:42:53] LAT : 18.751503 , LON : -67.587713 , DEPTH : 2746.9154 m, TEMP : 2.85774 C, SAL : 34.94611 PSU, DO : 7.98027 mg/l [14:47:31] thanks tara [14:47:53] LAT : 18.751606 , LON : -67.587884 , DEPTH : 2736.7681 m, TEMP : 2.86423 C, SAL : 34.9477 PSU, DO : 7.98576 mg/l [14:50:40] Robert Stern passed on a request to collect a geological sample here, as they look different to him [14:50:50] just call on me when you want a description of geology related things [14:51:20] Jason is that OK with you? [14:51:36] they are not exactly different, just coated [14:51:52] your call jason [14:52:54] LAT : 18.751706 , LON : -67.587909 , DEPTH : 2727.6325 m, TEMP : 2.87241 C, SAL : 34.94832 PSU, DO : 7.94378 mg/l [14:54:08] certainly if it was something more than just the FeMn coating that was seen, then it is fine with me, maybe I missed something [14:54:43] upasanaganguly leaves the room [14:55:13] My impression was that these were just FeMn coated also. Not a geologist but didn't think things were sufficiently different here compared to the "fresher" rock surface that we already got. [14:56:12] Seeing some sponges. [14:57:54] LAT : 18.751744 , LON : -67.588018 , DEPTH : 2722.6535 m, TEMP : 2.87901 C, SAL : 34.94922 PSU, DO : 7.9661 mg/l [15:02:55] LAT : 18.751622 , LON : -67.588249 , DEPTH : 2713.4248 m, TEMP : 2.88629 C, SAL : 34.95001 PSU, DO : 7.94573 mg/l [15:04:40] upasanaganguly leaves the room [15:06:07] Hello. I have the Silver Spring ECC running. I'll be in an out until about 13:00 Eastern Time [15:06:47] upasanaganguly leaves the room [15:06:47] scottfrance leaves the room [15:06:47] gloriacanon leaves the room [15:06:47] jaymesawbrey leaves the room [15:07:55] LAT : 18.751676 , LON : -67.588367 , DEPTH : 2707.2618 m, TEMP : 2.89322 C, SAL : 34.94945 PSU, DO : 7.9474 mg/l [15:08:12] if it is as unstable as has been hypothesized, a complete absence of mature colonies would not be unexpected [15:11:05] @Mike understood. [15:11:12] upasanaganguly leaves the room [15:12:56] LAT : 18.751802 , LON : -67.588336 , DEPTH : 2700.2202 m, TEMP : 2.89574 C, SAL : 34.95177 PSU, DO : 7.93705 mg/l [15:14:21] Did we ever get an Umbellula earlier in the expedition? I know we considered it. [15:15:02] We did not scott. [15:15:47] IT would require a ship-move in reverse to set up for that collection. I feel like it wouldn't be a good use of time since we have a shortened benthos portion of the dive. I really want one though! [15:16:10] OK. And understood - I would not ask you to go back. [15:17:56] LAT : 18.751897 , LON : -67.588577 , DEPTH : 2685.2538 m, TEMP : 2.89999 C, SAL : 34.95207 PSU, DO : 7.94705 mg/l [15:18:29] upasanaganguly leaves the room [15:22:57] LAT : 18.751879 , LON : -67.588823 , DEPTH : 2671.8297 m, TEMP : 3.0009 C, SAL : 34.95694 PSU, DO : 7.92064 mg/l [15:25:16] Mini sediment chute? [15:26:59] upasanaganguly leaves the room [15:27:57] LAT : 18.751894 , LON : -67.588901 , DEPTH : 2663.6113 m, TEMP : 3.01325 C, SAL : 34.95727 PSU, DO : 7.9123 mg/l [15:28:11] and we have a full midwater portion coming up... [15:28:28] @Steve: just checked. We collected an Umbellula from GoMex, dive 10, 2945 m. Looked a lot like this one we just saw, but can't tell from immediately available imagery (to me) if it had the same number of polyps. So given we are on the Atlantic Basin side of PR, I'd say that morph of Umbellula is a less critical target. It would be different if we saw a different morph (or color?) [15:29:44] Thanks Scott! Steve is at lunch but I will let him know. [15:31:20] including content in Spanish [15:32:16] and there are lesson plans in Spanish on the education tab [15:32:46] mashkoormalik leaves the room [15:32:58] LAT : 18.751857 , LON : -67.589002 , DEPTH : 2651.4602 m, TEMP : 3.04172 C, SAL : 34.95919 PSU, DO : 7.91928 mg/l [15:34:13] Spam, spam, spam, spam, spam, spam, spam... [15:34:31] That was for Nick P. [15:35:37] upasanaganguly leaves the room [15:37:59] LAT : 18.751973 , LON : -67.589007 , DEPTH : 2646.3942 m, TEMP : 3.03798 C, SAL : 34.95727 PSU, DO : 7.89183 mg/l [15:40:38] Former bambo coral... [15:40:57] skeleton taken over by perhaps hydroids, others [15:42:59] LAT : 18.752073 , LON : -67.588998 , DEPTH : 2640.5092 m, TEMP : 3.03452 C, SAL : 34.9534 PSU, DO : 7.89213 mg/l [15:43:03] upasanaganguly leaves the room [15:44:05] I just lost video [15:44:25] Same here. Second time this morning. [15:44:58] Camera 2 and 3 are broadcasting, just not 1 [15:45:24] ISC is aware of feed 1 loss [15:45:44] Thanks Steve. We can see you all in the control room on stream 3 [15:45:55] Perhpas we can get quad screen back on camera 3 so we can see bottom [15:46:30] Right now we are looking at everyone in control room [15:46:41] upasanaganguly leaves the room [15:46:50] Roland is working on it. I will relay that @Scott [15:47:05] Thanks [15:47:22] Thanks Roland. Feed 1 is back [15:48:00] LAT : 18.751883 , LON : -67.589302 , DEPTH : 2635.4552 m, TEMP : 3.03971 C, SAL : 34.95312 PSU, DO : 7.87968 mg/l [15:48:19] Yup. Feed 1 is back here as well. [15:48:30] Another talus pile. [15:49:39] could be several overlapping deposits from multiple failures, or part of the material was exposed along the wall (black) while the other material was behind it (white/tan) and everything failed at the same time [15:50:59] upasanaganguly leaves the room [15:53:00] LAT : 18.751891 , LON : -67.589301 , DEPTH : 2630.9411 m, TEMP : 3.03971 C, SAL : 34.95979 PSU, DO : 7.91081 mg/l [15:53:28] gloriacanon leaves the room [15:53:46] great copepod! [15:55:45] Agree. From this angle looks internodal [15:56:10] @Scott tough angle, yeah [15:56:28] definitely carbonates and some very large blocks - you can see the fresh/FeMn contrast on these nicely [15:58:01] LAT : 18.751873 , LON : -67.589224 , DEPTH : 2626.9475 m, TEMP : 3.0444 C, SAL : 34.95993 PSU, DO : 7.90501 mg/l [15:58:22] we would define this as a "rock fall/rock avalanche" (these actually the technical terms...I guess I am serious sometimes!) [16:01:23] upasanaganguly leaves the room [16:01:24] this looks like where the material, or a good portion of it, came from [16:03:01] LAT : 18.751862 , LON : -67.589427 , DEPTH : 2613.9936 m, TEMP : 3.06438 C, SAL : 34.96215 PSU, DO : 7.91131 mg/l [16:03:47] a good shaking and those blocks are failing [16:05:43] definitely [16:08:02] LAT : 18.751895 , LON : -67.589449 , DEPTH : 2604.673 m, TEMP : 3.05584 C, SAL : 34.96125 PSU, DO : 7.89986 mg/l [16:12:12] tweeted...so if Chris Mah is paying attention, he'll see it. [16:12:27] thanks tara! [16:13:02] LAT : 18.751608 , LON : -67.589461 , DEPTH : 2599.6861 m, TEMP : 3.06249 C, SAL : 34.9619 PSU, DO : 7.86794 mg/l [16:13:08] upasanaganguly leaves the room [16:13:23] @Stacy I feel like it's one of my jobs! [16:15:04] Is Zach P. in the chatroom? [16:15:11] I heard next year the ship was going to install a big spot light with a giant sea star in the middle that they could turn on whenever we encountered one... [16:16:59] @Steve he he [16:18:03] LAT : 18.751954 , LON : -67.589662 , DEPTH : 2589.8871 m, TEMP : 3.06377 C, SAL : 34.96124 PSU, DO : 7.90857 mg/l [16:19:54] Stacey, yes, I think it's a squat lobster [16:21:54] That is a very distinctive morph of cladorhizid. I don't think I've seen one like that before. [16:23:01] jaymesawbrey leaves the room [16:23:03] LAT : 18.751847 , LON : -67.589601 , DEPTH : 2584.5946 m, TEMP : 3.06734 C, SAL : 34.96204 PSU, DO : 7.89852 mg/l [16:23:18] @Scott we agree. Not one pictured in the Hestetun et al 2016 paper on Caribbean Cladorhizids [16:24:46] Perhaps then a collection target if you come across one in an operationally convenient spot. [16:25:01] @Scott agreed. I second [16:28:04] LAT : 18.752036 , LON : -67.589827 , DEPTH : 2581.7142 m, TEMP : 3.06974 C, SAL : 34.96227 PSU, DO : 7.90906 mg/l [16:29:22] if the pilots feel comfortable, could they grab a rock from inside one of these fresh areas? [16:30:54] You want one that looks more white or tan I assume, right? [16:31:04] correct [16:32:05] yes, should be fine [16:33:04] LAT : 18.752002 , LON : -67.589819 , DEPTH : 2573.5549 m, TEMP : 3.07549 C, SAL : 34.96315 PSU, DO : 7.8617 mg/l [16:33:34] gloriacanon leaves the room [16:36:13] scottfrance leaves the room [16:38:05] LAT : 18.751903 , LON : -67.589958 , DEPTH : 2567.4779 m, TEMP : 3.0766 C, SAL : 34.96336 PSU, DO : 7.8751 mg/l [16:38:46] yay jelly! [16:39:00] rhopalonematid [16:40:17] Naturally booted from the chatroom at wrong time. [16:43:05] LAT : 18.751941 , LON : -67.590029 , DEPTH : 2556.0754 m, TEMP : 3.11721 C, SAL : 34.96954 PSU, DO : 7.86178 mg/l [16:48:00] ... a very cool medusa [16:48:14] LAT : 18.75202 , LON : -67.590235 , DEPTH : 2549.6405 m, TEMP : 3.12641 C, SAL : 34.96877 PSU, DO : 7.88298 mg/l [16:49:19] Jason, just to be sure, you want a rock that is associated with those "recent" failures? [16:49:41] correct [16:50:07] @mike there is a highlight video with one. it should be online in the next couple days [16:53:06] LAT : 18.752035 , LON : -67.590204 , DEPTH : 2538.8652 m, TEMP : 3.14358 C, SAL : 34.97048 PSU, DO : 7.85615 mg/l [16:54:21] I just saw that video. Each observation has been showing us new morphological variations, making us think about existing groupings quite a bit. [16:56:00] cool! [16:56:35] gloriacanon leaves the room [16:58:07] LAT : 18.751974 , LON : -67.590264 , DEPTH : 2534.518 m, TEMP : 3.15166 C, SAL : 34.97105 PSU, DO : 7.88399 mg/l [16:58:56] I need to depart in a few minutes. If an "in place" rock (s) can't be collected before switching to mid-water mode, grab whatever you can [16:59:27] @Jason Good copy. Will keep an eye out [16:59:53] Doing a pilot changeout [17:02:18] Pilots need to come off bottom for a short period of time. Will let you all know when we can go back down to the seafloor. [17:02:33] Thanks Steve. Do we know why? [17:03:01] I'll try to find out. Will relay when we have more info back here. [17:03:11] LAT : 18.751993 , LON : -67.590092 , DEPTH : 2532.6065 m, TEMP : 3.16124 C, SAL : 34.97236 PSU, DO : 7.88336 mg/l [17:03:16] Winch issue, based on what I'm hearing. [17:03:28] thanks. [17:03:46] @Scott sounds like it. I heard the word hydraulics thrown around. Never a good sign! [17:04:07] In fact, I wanted to note that the audio from winch was unexpectedly loud. I wondered if they were somehow directly on OkEx line. [17:04:39] upasanaganguly leaves the room [17:04:46] @Scott didn't hear that. There has been some bleed over on the OKEX from other channels. Maybe that was it [17:05:19] I am off...hopefully ops can continue [17:05:39] Thanks for joining jason. [17:06:14] jasonchaytor leaves the room [17:08:08] LAT : 18.751822 , LON : -67.58986 , DEPTH : 2531.0669 m, TEMP : 3.17021 C, SAL : 34.97279 PSU, DO : 7.84232 mg/l [17:09:15] Heading off into the mid-water for an indefinite time until they can troubleshoot the problem. Will post updates as we can. No plans to cancel dive at the moment. [17:11:57] Thanks for the update. Seems like a good time to grab lunch. [17:12:11] Stand by, we will keep you updated [17:12:11] jaymesawbrey leaves the room [17:12:23] Time to plan the grocery shopping! [17:12:38] No mess crew here! [17:13:08] LAT : 18.752058 , LON : -67.589979 , DEPTH : 2528.5271 m, TEMP : 3.16926 C, SAL : 34.97354 PSU, DO : 7.87704 mg/l [17:14:25] @Scott see ya later. Thanks for stopping in. [17:16:49] @Steve: I meant while we are hanging in the water. [17:17:32] Ah I thought you were actually going now. [17:18:09] LAT : 18.75202 , LON : -67.589685 , DEPTH : 2514.502 m, TEMP : 3.18581 C, SAL : 34.97389 PSU, DO : 7.85543 mg/l [17:18:29] Work has started on the winch to see what the problem is there. Driving off the wall, eastward right now [17:21:55] zachproux leaves the room [17:23:09] LAT : 18.752223 , LON : -67.589397 , DEPTH : 2514.7209 m, TEMP : 3.19973 C, SAL : 34.97572 PSU, DO : 7.83899 mg/l [17:23:30] After chatting with with the ROV team, one of the motors on the hydraulic winch seems to need an O-ring change. After that happens (not clear how long that could take), we can discuss further options. [17:23:46] Copy that [17:23:59] got it. [17:24:14] thanks [17:24:14] iscwatch2 leaves the room [17:24:30] It would take a significant amount of time to get back to the seafloor so we may want to consider rolling into the mid-water after the repair is complete [17:25:14] One of us, I or Stacey, will be monitoring audio comms but we will likely post updates in the chat. [17:25:29] Understood. For discussion purposes, how much time would we have on the bottom if we went back? [17:25:44] copy that. standing by. [17:26:28] Would take about an hour to reposition on the wall @Scott [17:27:43] Understood, but I don't know the planned off bottom time. So where do we stand with respect to that? If I base on email, it would only be 45 min or so from now. If that is still the case, I agree that we should go straight to mid-water. [17:28:10] LAT : 18.752106 , LON : -67.589034 , DEPTH : 2514.231 m, TEMP : 3.18536 C, SAL : 34.97456 PSU, DO : 7.83692 mg/l [17:28:26] Scott, if I remember correctly, off-bottom time was expected to be in about 1 hour [17:28:47] so I also agree, straight to midwater seems sensible [17:29:13] Around 2:15 AST we were expected to begin mid-water phase. @Scott is correct on the numbers. [17:29:41] Copy. I think reasonable option is to call end to benthic phase of dive. [17:29:55] Mike, this might be for you, Since we would be starting mid-water earlier, might we want to add a depth layer or extend our transect on another? [17:30:15] Let Mike dictate how to proceed once issue is solved. [17:30:27] Just so I can alert the navigator sooner than later [17:31:04] Repairs are complete. We should be underway in another few minutes. [17:31:52] If the opportunity to add a depth layer to our plan exists, then let's plan another deep layer. [17:32:09] We have 2000, 900, 700, 500,and 300 in the plan now [17:32:22] what depth would you like? [17:32:37] we could add a transect at 2200 [17:32:49] Better hurry as Chris has told winch we'll be raising 400 m shortly. [17:32:59] Got that. I'll relay to Nav [17:33:13] LAT : 18.75213 , LON : -67.588839 , DEPTH : 2515.463 m, TEMP : 3.18848 C, SAL : 34.97453 PSU, DO : 7.86146 mg/l [17:33:32] iscwatch2 leaves the room [17:34:43] @mike, 2200 m is too deep for the ROV given the terrain [17:34:57] EX1811_DIVE10 ROV Ascending [17:35:15] they are no able to go below 2000 [17:35:23] got it. 200 and then 1800 okay? [17:35:39] we could add an extra depth anywhere between 2000-900 [17:35:53] copy that [17:36:03] 2000 and then 1800 [17:36:16] roger that [17:36:29] Curious. Can't they move at 2220 m but in a direction away form the wall? Or are we in a feature surrounded on multiple sides? [17:36:45] first midwater transect will start at 2000 m. Then we will add 1800 m, 900m, 700 m, 500 m, 300 m [17:36:57] sounds goo [17:37:12] good [17:38:11] LAT : 18.752139 , LON : -67.588736 , DEPTH : 2469.4528 m, TEMP : 3.25672 C, SAL : 34.97752 PSU, DO : 7.8522 mg/l [17:40:29] I'm going to have to leave the midwater part of the dive to the experts. See you all tomorrow. [17:41:41] @Steve: when things have settled down, let us know if there is a plan for discussion of tomorrow's dive, or if that is off until after midwater work. [17:42:25] mashkoormalik leaves the room [17:42:46] exactly, Daniel. Adding time is good in this case [17:43:12] LAT : 18.752205 , LON : -67.588576 , DEPTH : 2347.1506 m, TEMP : 3.39549 C, SAL : 34.98412 PSU, DO : 7.84053 mg/l [17:43:22] good extra time at 2000 [17:44:41] @Scott I will find out. Need to check with Derek to see if the maps are ready yet. [17:48:12] LAT : 18.752155 , LON : -67.588592 , DEPTH : 2185.4509 m, TEMP : 3.50426 C, SAL : 34.98923 PSU, DO : 7.82592 mg/l [17:51:47] i'm ready to go. [17:52:23] 2050m now [17:53:13] LAT : 18.752119 , LON : -67.588658 , DEPTH : 2043.9387 m, TEMP : 3.55577 C, SAL : 34.99193 PSU, DO : 7.83756 mg/l [17:54:21] If Mike is on the line, so far I have not heard him. [17:55:53] Now I hear you, Mike! [17:56:28] didn't want to impose too early... [17:58:13] LAT : 18.751962 , LON : -67.588112 , DEPTH : 1999.8349 m, TEMP : 3.57587 C, SAL : 34.99224 PSU, DO : 7.80684 mg/l [18:03:14] LAT : 18.751878 , LON : -67.588067 , DEPTH : 1999.9284 m, TEMP : 3.57781 C, SAL : 34.99188 PSU, DO : 7.81264 mg/l [18:03:58] iscwatch2 leaves the room [18:07:43] scottfrance leaves the room [18:07:43] taraluke leaves the room [18:08:13] mashkoormalik leaves the room [18:08:15] LAT : 18.751905 , LON : -67.588023 , DEPTH : 1999.967 m, TEMP : 3.58157 C, SAL : 34.99179 PSU, DO : 7.8282 mg/l [18:09:19] scottfrance leaves the room [18:12:48] scottfrance leaves the room [18:13:15] LAT : 18.75198 , LON : -67.588101 , DEPTH : 1999.8686 m, TEMP : 3.58301 C, SAL : 34.99212 PSU, DO : 7.81463 mg/l [18:15:33] jaymesawbrey leaves the room [18:17:59] @Scott if, you log back in, we will hold the next planning call at 6:15 AST/5:15ET/4:15CT. We are still waiting on WPs from Jason for tomorrow's dive to the east. We have a backup if necessary though. [18:18:16] LAT : 18.751801 , LON : -67.588099 , DEPTH : 1999.6637 m, TEMP : 3.58318 C, SAL : 34.991 PSU, DO : 7.83447 mg/l [18:22:29] dense particle field out here [18:22:45] those larvaceans must be making a good living... [18:23:16] LAT : 18.751767 , LON : -67.588106 , DEPTH : 1998.881 m, TEMP : 3.58495 C, SAL : 34.99033 PSU, DO : 7.8201 mg/l [18:23:58] I thinks so, they are nice and fat [18:28:17] LAT : 18.751877 , LON : -67.588318 , DEPTH : 1998.8676 m, TEMP : 3.58716 C, SAL : 34.98995 PSU, DO : 7.80163 mg/l [18:32:26] Good morning everyone [18:33:17] LAT : 18.752115 , LON : -67.588677 , DEPTH : 1906.0219 m, TEMP : 3.64785 C, SAL : 34.99146 PSU, DO : 7.83415 mg/l [18:34:08] Hey Dhugal! [18:34:31] moving to 900m now [18:34:49] Just going to procure a cup of coffee. Be back in a tick. Looking forward to some excitement! [18:35:00] Mike have you ever done one of these mid-water surveys at night? [18:35:50] I haven't. It would be very exciting to do one, however [18:36:38] back in 2 minutes [18:38:18] LAT : 18.752275 , LON : -67.588514 , DEPTH : 1758.3697 m, TEMP : 3.97647 C, SAL : 35.00679 PSU, DO : 7.73173 mg/l [18:41:14] would you place a cursor on the DSL in the 18 panel on the EK60? Just so I can see the depth and range for the DSL [18:41:30] I have done one. Animals were very active up in the top 150m. [18:42:17] Very hard to follow any of them and film them because the ROV tether is so short and tight. Maybe ROV pilots could tell us about the difficulties they can imagine with that? [18:42:39] A pity since most of the biology happens at night! A real hole in our understanding... [18:43:18] LAT : 18.752429 , LON : -67.588302 , DEPTH : 1611.8016 m, TEMP : 4.2646 C, SAL : 35.01897 PSU, DO : 7.60053 mg/l [18:43:21] danielwagner leaves the room [18:43:40] Mike, I'll try to put that cursor for you. [18:43:57] physonect siphonophore [18:44:22] I put the cursor on the DSL around 500m. Does that look ok? [18:44:35] 467.7m cetner [18:44:48] thank you [18:44:48] allencollins leaves the room [18:45:43] We doing our regular depths plus some extras? [18:46:26] salinity minimum? [18:46:45] @Dhugal 2000m, 900, 700, 500, 300 [18:46:55] danielwagner leaves the room [18:47:05] Salinity minimum also around 750m. [18:47:38] Roger. Lowest oxygen and salinity at 750m [18:48:19] LAT : 18.752226 , LON : -67.587987 , DEPTH : 1465.3001 m, TEMP : 4.37916 C, SAL : 35.02575 PSU, DO : 7.52557 mg/l [18:51:20] megancromwell leaves the room [18:52:50] allencollins leaves the room [18:53:19] LAT : 18.751832 , LON : -67.587579 , DEPTH : 1315.5619 m, TEMP : 4.51103 C, SAL : 35.0316 PSU, DO : 7.45407 mg/l [18:53:37] someone on the team asked about ascent speed. We are at 10 m per min, correct? [18:54:21] would you place the quad screen on camera 3? we can flip back to the EK60 when we approach the 500 [18:54:40] @mike&allen, you guys in Silver Spring at the big screen? [18:55:03] I am - with the new super screen! [18:55:23] Nice! [18:55:45] I have my mother in law in town, so just getting it set up on my home computer now. Needed a new Flash install and reboot. . . . [18:56:12] 30m/min ascent rate [18:56:26] great. thank you [18:56:44] I will fix those screens for you. Video is trying to track down a buzzing noise on the audio right now. [18:57:21] I am sitting up in bed under the covers with a hot mug of coffee. Small screen.. So Mike be our taxon ID guru! [18:57:46] allencollins leaves the room [18:58:20] LAT : 18.751734 , LON : -67.587594 , DEPTH : 1167.1189 m, TEMP : 4.94331 C, SAL : 35.04985 PSU, DO : 7.15336 mg/l [18:58:44] woohoo! [18:58:59] krill? [19:00:12] at 2000m saw two nice halicreatids [19:00:40] That deep maybe Botrynema? [19:01:30] allencollins leaves the room [19:02:15] The guy we call the "sake bottle jelly", or were they big, orange and stripy> [19:02:42] very possible. sake - smaller, very clear, faint radial canals [19:03:17] isopod or coelodendrid phaeodarian.. [19:03:34] LAT : 18.751785 , LON : -67.587648 , DEPTH : 1012.333 m, TEMP : 5.57661 C, SAL : 35.06511 PSU, DO : 6.56294 mg/l [19:06:02] Hi Tracey [19:06:20] Hi Mike - sorry I'm late. Hope I haven't missed anything [19:06:39] all the fish will be in hiding now [19:06:59] Nope. We started early with a 2000m transect. We're on our way to 900 for 900, 700, 500, and 300 [19:07:46] all the fish are behind the ROV with the squid [19:08:21] LAT : 18.751787 , LON : -67.587838 , DEPTH : 899.8977 m, TEMP : 6.75567 C, SAL : 35.06625 PSU, DO : 5.06295 mg/l [19:08:59] we'll see bits of them when we reverse suddenly ;-) [19:09:23] we should do that. get all quiet and dark and then spin around really fast [19:09:41] megancromwell leaves the room [19:09:43] hundreds of huge sea creatures! [19:10:21] so are each of these transects going to be longer? Long and few is the game plan? [19:11:40] yeah - 25 minutes [19:11:54] cool! [19:12:35] salp with babies [19:13:09] shrimp, not mysid [19:13:21] LAT : 18.75184 , LON : -67.588414 , DEPTH : 900.0345 m, TEMP : 6.77284 C, SAL : 35.04004 PSU, DO : 5.04691 mg/l [19:14:05] orange chaete. Eukrohnia? [19:14:28] yeah - great color [19:14:44] Sinker. missing inner filter [19:14:59] allencollins leaves the room [19:15:28] copepod. Paraeuchaeta maybe. red head [19:16:01] ashleyperez leaves the room: Replaced by new connection [19:17:05] danielwagner leaves the room [19:17:15] oikopleurid. very active [19:17:28] Good eyes guys! [19:17:55] Frillagalma! [19:18:14] Nice agalmid [19:18:22] LAT : 18.751829 , LON : -67.588446 , DEPTH : 900.0942 m, TEMP : 6.74429 C, SAL : 35.03945 PSU, DO : 5.07318 mg/l [19:18:31] Oh, cool. Frillagalma! [19:20:40] oikopleurid [19:21:45] oikopleurid [19:22:01] Cyclothone [19:22:52] full guts? [19:23:16] siph [19:23:29] LAT : 18.751813 , LON : -67.588422 , DEPTH : 900.1908 m, TEMP : 6.67064 C, SAL : 35.03591 PSU, DO : 5.13527 mg/l [19:23:45] physonect. Could it be Rudjakovia? Nice closeups! [19:23:59] marrus perhaps [19:24:11] here ya go, Tracey [19:24:20] The cormidia seemed to be quite dispersed along the stem [19:24:36] dragonfish [19:25:41] Cyclothone. good shot [19:26:10] Phaeodendrid? [19:26:50] orange chaete [19:27:04] will look at dragonfish later, but my first thought is Melanostomias or Photostomias. Great shot - super rare to see the scaleless black genera [19:28:09] great!! [19:28:25] larvacean. a Mesochordeus maybe? [19:28:31] collapsed house [19:28:38] LAT : 18.751915 , LON : -67.588449 , DEPTH : 900.3054 m, TEMP : 6.63545 C, SAL : 35.0345 PSU, DO : 5.1629 mg/l [19:28:51] inner filter seemed quite bumpy [19:29:28] Leptomedusa [19:29:51] Halitrephes! [19:29:59] Oh, whoops. [19:30:06] valvidae? [19:30:17] Hi! This is very interesting dive for zooplankton. But where I am at the conection is bad [19:30:37] Did that have something in the gut? [19:30:54] It was a halicreatid trachymedusa [19:31:06] I think so... [19:31:17] Did got guys had some kind of doliolid? A tunicate? [19:31:40] orange chaete [19:32:03] saw a salp with a long stolon at the start of the transect [19:32:31] larvacean. The ?mesochordeus type [19:33:01] aurearodriguez leaves the room [19:33:04] Did someone get a good screen grab of the Halitrephes? IF so, please email it to me. Thanks. [19:33:16] how much ya got? [19:33:32] lanternfish - maybe Ceratoscopelus [19:33:40] LAT : 18.751868 , LON : -67.588458 , DEPTH : 900.2633 m, TEMP : 6.71514 C, SAL : 35.03834 PSU, DO : 5.09645 mg/l [19:33:49] oikopleurid [19:34:05] oik [19:34:22] Ceratoscopelus? They even eat phytoplankton, right? Eat anything? [19:35:02] something on oik house or dead oik [19:35:47] aurearodriguez leaves the room [19:35:50] chaetes [19:36:05] allen - just sent it email [19:36:28] one for me too? [19:36:49] allencollins leaves the room [19:36:57] Frillagalma again [19:37:10] sent.. [19:37:22] those are awesome. [19:37:40] Thanks mate. Going to get a caffeine refill [19:38:24] LAT : 18.751854 , LON : -67.58845 , DEPTH : 898.8732 m, TEMP : 6.73586 C, SAL : 35.03846 PSU, DO : 5.08424 mg/l [19:38:51] heading to 700 [19:39:46] Ceratoscopelus mainly takes large calanoid copepods, and euphausiids/shrimp when bigger. [19:40:03] they migrate over 1000 m in places [19:43:08] looks like lots of food here. Will be good to get a VPR or shadowgraph camera to quantify and image the smaller particles [19:43:24] LAT : 18.751825 , LON : -67.588437 , DEPTH : 845.8773 m, TEMP : 7.13594 C, SAL : 35.0373 PSU, DO : 4.71443 mg/l [19:45:41] Nice siph [19:46:11] calycophoran [19:47:57] the great colorful siphonophore looked like it might have been Marrus, yeah? [19:48:25] LAT : 18.7518 , LON : -67.588432 , DEPTH : 798.1241 m, TEMP : 7.97768 C, SAL : 35.07733 PSU, DO : 4.269 mg/l [19:48:50] bracts seemed to diffuse. I am thinking Rudjakovia. An undescribed species we also get off Japan or maybe another yet again. [19:48:58] aurearodriguez leaves the room [19:49:21] Arctic Rudjakovia are white but this is an orangish taxon [19:50:02] basically because the cormidia seemed diffuse rather than clustered [19:50:49] would have to look long and hard at some frame grabs to be 100% sure t hough [19:52:14] polychaete? [19:52:35] big red shrimp [19:53:10] physonect. not Frillagalma [19:53:26] LAT : 18.751761 , LON : -67.588499 , DEPTH : 747.8264 m, TEMP : 8.52138 C, SAL : 35.12185 PSU, DO : 4.10728 mg/l [19:54:11] Cyclothone? [19:54:49] aurearodriguez leaves the room [19:55:10] allencollins leaves the room [19:57:17] coelodendrid [19:58:26] LAT : 18.751859 , LON : -67.588435 , DEPTH : 699.9169 m, TEMP : 8.92541 C, SAL : 35.16436 PSU, DO : 3.99621 mg/l [20:00:13] starting 700m [20:00:28] hatchetfish? [20:00:54] Cyclothone - these are probably C. pallida [20:01:50] shirmp. not sergestid [20:02:20] Sergestod for sure. No saddle or bend [20:03:03] young Stephanomia amphytridis [20:03:27] LAT : 18.751838 , LON : -67.588477 , DEPTH : 698.9513 m, TEMP : 8.92393 C, SAL : 35.22299 PSU, DO : 4.00961 mg/l [20:03:46] Serrivomer - sawtooth eel [20:04:13] Serrivomer beanii [20:04:59]