[07:11:58] chat-admin leaves the room [07:28:32] okexnav leaves the room [13:03:09] philhartmeyer leaves the room [13:04:29] robertcarney leaves the room [13:35:20] philhartmeyer leaves the room [13:49:27] philhartmeyer leaves the room [14:33:03] rachelgulbraa leaves the room [14:52:14] rachelgulbraa leaves the room [14:58:52] rachelgulbraa leaves the room: Replaced by new connection [15:09:23] robertcarney leaves the room [15:16:53] EX2301_DIVE05 Test message [15:38:59] rachelgulbraa leaves the room [15:52:54] rachelgulbraa leaves the room [16:07:23] EX2301_DIVE05 ROV powered off [16:48:16] EX2301_DIVE05 ROV Launch [16:55:37] alexisweinnig leaves the room: Replaced by new connection [16:56:49] EX2301_DIVE05 ROV on Surface [16:57:24] EX2301_DIVE05 ROV Descending [17:14:08] Hiya Robert! Currently descending [17:14:38] welcome Mike! [17:14:59] Large "sinkers" in the water column. [17:15:35] Hi Paige. Teaching today, so I can't do much on the dive. [17:16:00] Understandable - happy to have you here! [17:16:08] Hi Paige. I'll be here off and on...what is bottom depth? [17:16:20] LAT : 42.278379 , LON : -125.071859 , DEPTH : 323.7606 m, TEMP : 6.25506 C, SAL : 34.03708 PSU, DO : 2.04053 mg/l, TURBIDITY : 2.1245 FTU [17:16:28] PS "Sinkers" are abandoned larvacean houses, important for transfer of carbon to the deep benthos. [17:17:17] about 1800m! [17:17:27] thks [17:18:21] robertcarney leaves the room [17:18:55] Very cool - thanks Mike, we always love learning those water column facts [17:21:20] LAT : 42.277996 , LON : -125.07194 , DEPTH : 478.6196 m, TEMP : 5.40565 C, SAL : 34.12666 PSU, DO : 1.04768 mg/l, TURBIDITY : 2.1368 FTU [17:26:21] LAT : 42.277678 , LON : -125.072121 , DEPTH : 631.8596 m, TEMP : 4.80005 C, SAL : 34.21988 PSU, DO : 0.52078 mg/l, TURBIDITY : 2.1123 FTU [17:31:22] LAT : 42.277393 , LON : -125.072386 , DEPTH : 782.5022 m, TEMP : 4.31914 C, SAL : 34.3059 PSU, DO : 0.33297 mg/l, TURBIDITY : 2.1856 FTU [17:36:22] LAT : 42.277046 , LON : -125.072401 , DEPTH : 936.5124 m, TEMP : 3.8718 C, SAL : 34.3908 PSU, DO : 0.32556 mg/l, TURBIDITY : 2.2283 FTU [17:38:33] alexisweinnig leaves the room [17:41:23] LAT : 42.276764 , LON : -125.072458 , DEPTH : 1093.5344 m, TEMP : 3.50905 C, SAL : 34.44932 PSU, DO : 0.53113 mg/l, TURBIDITY : 2.265 FTU [17:46:24] LAT : 42.276667 , LON : -125.072562 , DEPTH : 1252.0721 m, TEMP : 3.15564 C, SAL : 34.48726 PSU, DO : 0.72862 mg/l, TURBIDITY : 2.2955 FTU [17:48:33] Welcome Rachel! [17:51:24] LAT : 42.276721 , LON : -125.072352 , DEPTH : 1408.3328 m, TEMP : 2.92616 C, SAL : 34.50739 PSU, DO : 0.89912 mg/l, TURBIDITY : 2.265 FTU [17:53:55] rachelgulbraa leaves the room [17:54:14] Jelly was "big red", I think. [17:54:46] Tiburonia granrojo [17:56:24] LAT : 42.276672 , LON : -125.072437 , DEPTH : 1567.8997 m, TEMP : 2.53462 C, SAL : 34.54493 PSU, DO : 1.24267 mg/l, TURBIDITY : 2.3321 FTU [18:01:25] LAT : 42.276518 , LON : -125.072436 , DEPTH : 1725.5958 m, TEMP : 2.2379 C, SAL : 34.57167 PSU, DO : 1.5665 mg/l, TURBIDITY : 2.3748 FTU [18:06:26] LAT : 42.276594 , LON : -125.072464 , DEPTH : 1790.4613 m, TEMP : 2.14547 C, SAL : 34.57994 PSU, DO : 1.68896 mg/l, TURBIDITY : 2.3932 FTU [18:10:33] EX2301_DIVE05 ROV on Bottom [18:11:26] LAT : 42.27593 , LON : -125.072382 , DEPTH : 1811.5028 m, TEMP : 2.13768 C, SAL : 34.58003 PSU, DO : 1.75064 mg/l, TURBIDITY : 2.3687 FTU [18:15:48] Coral right off the bat [18:15:52] Radicipes stonei [18:16:27] LAT : 42.275842 , LON : -125.072321 , DEPTH : 1812.9928 m, TEMP : 2.1375 C, SAL : 34.58236 PSU, DO : 1.73183 mg/l, TURBIDITY : 2.3382 FTU [18:16:29] Another riht to the right of the manip right now [18:17:13] and a little red seapen [18:17:54] the engineers will be doing some DVL testing this morning so we won't be collecting right away [18:18:08] we have been granted one bio and one geo samples today! [18:18:31] Woot! Well we should't use the bio on Radicipes :) its been pretty well collected [18:20:04] okay great - thanks for that info! [18:21:27] LAT : 42.275802 , LON : -125.072481 , DEPTH : 1812.4857 m, TEMP : 2.13696 C, SAL : 34.57817 PSU, DO : 1.70361 mg/l, TURBIDITY : 2.5275 FTU [18:21:53] kelseyjames leaves the room [18:26:27] LAT : 42.275775 , LON : -125.072405 , DEPTH : 1813.2197 m, TEMP : 2.13328 C, SAL : 34.58068 PSU, DO : 1.75128 mg/l, TURBIDITY : 3.9988 FTU [18:31:28] LAT : 42.275843 , LON : -125.072421 , DEPTH : 1810.0391 m, TEMP : 2.13655 C, SAL : 34.58159 PSU, DO : 1.68643 mg/l, TURBIDITY : 3.1197 FTU [18:33:15] Really nice view of the Radicipes in this shot [18:36:25] Alexis is gonna try and get them to zoom in on it.... [18:36:29] LAT : 42.275826 , LON : -125.072419 , DEPTH : 1812.4134 m, TEMP : 2.14225 C, SAL : 34.58463 PSU, DO : 1.70906 mg/l, TURBIDITY : 3.254 FTU [18:40:11] sea cucumber alert! [18:40:22] dendrochirote holothuroid [18:41:05] interesting.never seen a cuke hanging off a stalk like that. [18:41:16] mereditheverett leaves the room [18:41:29] LAT : 42.275878 , LON : -125.072489 , DEPTH : 1812.0828 m, TEMP : 2.13524 C, SAL : 34.5809 PSU, DO : 1.70947 mg/l, TURBIDITY : 3.1502 FTU [18:41:31] anyone know this coral ID? [18:42:19] With the ctenophore? [18:42:31] That looks ljust like a skeleton from something else [18:42:39] There is a small seapen behind [18:42:47] the dendrochirotes (suspension feeders) do hold onto things...I don't know them...unusual at this depth could be Abysocucumis [18:43:41] Thanks for helping me, the geologist of the group :) [18:44:19] The tiny seapens are really hard to identify via video, but I'd guess Funiculina and Protoptilum [18:44:31] Thanks Meredith! [18:46:29] LAT : 42.275924 , LON : -125.072596 , DEPTH : 1814.3406 m, TEMP : 2.14166 C, SAL : 34.57967 PSU, DO : 1.71964 mg/l, TURBIDITY : 3.4371 FTU [18:46:42] oooo! [18:46:56] Holothuroid in gamete shedding posture [18:47:38] guess on holothuroid is Pannychia [18:48:02] looks like Pannychia moseleyi [18:48:20] ah. Bob agrees. [18:48:35] an elasiopod.. with the big legs [18:48:54] rachelgulbraa leaves the room [18:49:04] ha ha. Bob Carney is one of the cuke guys.. [18:49:22] hmmm. sensory? Bob? [18:49:35] brittle star is Ophiomusa lymani [18:49:51] one of the largest and most commonly encountered deep-sea ophs [18:50:23] there 2 3 types of holothuroids "tube feet"... feeding tentacles. walking legs, and pointed sensory papillae [18:51:30] LAT : 42.27588 , LON : -125.072717 , DEPTH : 1814.901 m, TEMP : 2.13601 C, SAL : 34.57972 PSU, DO : 1.72647 mg/l, TURBIDITY : 5.8364 FTU [18:53:28] Oregon margin out to Tufts Plain was pretty extensively trawled by W Pearcy and A Carey at Oregon State 1960's-70's, Most common taxa were worked up and are either at UNNMNH of LA County Museum [18:54:02] indeed. many of the stars are at California Academy of Sciences [18:56:31] LAT : 42.275748 , LON : -125.07258 , DEPTH : 1812.2089 m, TEMP : 2.14023 C, SAL : 34.58302 PSU, DO : 1.729 mg/l, TURBIDITY : 3.7241 FTU [18:56:52] They can be, they'll occur in large aggregations in soft sediment, but patchy [18:57:07] This species occurs all the way up to Alaska [18:57:24] This is one of the few Chrysogorgidae that occurs in soft sediment [18:57:43] All the way to central California [18:57:52] haven't seen them south of that yet [18:59:22] Alexis.. did you say we are starting science tomorrow? [18:59:40] fat holothuroid..synallactid ...maybe a Mesothuria [18:59:49] thanks Bob! [19:00:26] Mud isn't geology anymore? [19:01:18] ah. Sunday! thank you! [19:01:31] LAT : 42.275721 , LON : -125.072389 , DEPTH : 1810.9756 m, TEMP : 2.14035 C, SAL : 34.57995 PSU, DO : 1.69584 mg/l, TURBIDITY : 3.779 FTU [19:03:03] I believe this is indeed Coryphaenoides [19:03:22] ooooo! [19:03:24] I think most of these are Pacific grenadier...maybe Tom L. will chime in later [19:03:43] This sea pen is Distichoptilum [19:04:16] Historical note...deep megafauna sampling off Oregon was initiated with Atomic Energy Commission funding checking if rad waste out of the Handford Plant made it out into deep ecosystem [19:04:22] I'd guess the ophiuroids are Asteronyx loveni [19:05:16] are they grabbing marine snow out of the water column to feed? [19:06:32] LAT : 42.275639 , LON : -125.072557 , DEPTH : 1815.4086 m, TEMP : 2.13934 C, SAL : 34.57918 PSU, DO : 1.68877 mg/l, TURBIDITY : 2.5092 FTU [19:07:05] they are extending arms to feed on something.. not sure what this species feeds on.. [19:08:30] correct. The big white on in the sediment is a brisingid. Unusual for them to be flush in the mud llike that [19:09:39] all of the ones we've seen to be doing that.. I'm curious to see which one it is.. [19:10:13] I'll see if we can get a zoom on one next sit down [19:10:37] wow, Bob thanks for that historical context! [19:11:33] LAT : 42.275577 , LON : -125.072563 , DEPTH : 1814.4985 m, TEMP : 2.1507 C, SAL : 34.58096 PSU, DO : 1.68374 mg/l, TURBIDITY : 5.2381 FTU [19:13:28] Indeed. All of Bob's background is why I'm so familiar with the species here. Many of the species collected by trawl are in Pacific collections that I've studied over the years. [19:14:18] Bob Carney's colleague Drew Carey at Oregon State University had a huge collection of trawled invertebrates including echinoderms which gave us a tremendous knowledge base on species that live here [19:14:20] Chris/Bob - when were those sampling efforts first initiated? [19:14:43] 1960s to 1980s I think? Bob lived them.. I only know the jars. :-) [19:15:28] Arms making a feeding fan.. [19:15:47] the other 5 rayed ones are always good as well! [19:16:27] Pacific flatnose [19:16:33] LAT : 42.275595 , LON : -125.072489 , DEPTH : 1812.6496 m, TEMP : 2.14231 C, SAL : 34.57982 PSU, DO : 1.74534 mg/l, TURBIDITY : 2.6068 FTU [19:16:57] Antimora microlepis [19:17:07] Thank you! [19:17:19] rachelgulbraa leaves the room [19:17:34] Its a good background for writing HPC code :) [19:18:06] Meredith - the only sea pens in the EXPRESS master list are Stachyptilum and Protoptilum - would you be interested in collecting one of these other sea pens? [19:18:16] Chris...my recollection is that there are two sp of Laetmogonidae on the slope there, Pannychia and Laetmogone...spicules are definitive [19:19:17] thanks Bob! [19:19:50] gastropods [19:21:04] gastropod may be Buccinids...predators [19:21:34] LAT : 42.275449 , LON : -125.072464 , DEPTH : 1814.2262 m, TEMP : 2.14118 C, SAL : 34.58023 PSU, DO : 1.70245 mg/l, TURBIDITY : 2.6923 FTU [19:21:57] wow. that's FANTASTIC! [19:22:34] wish I could call in! [19:24:47] I've got plenty of Distichoptilum (we get it in the trawl survey) but Funiculina (the tiny guys in the sediment) would be a good addition to either the Protoptilum and Stachyptilum....if the pilots want to chase one down in the sedment [19:24:55] they can retract, you need to be sneaky [19:25:04] Brisingids are Hymenodiscus exilis.. SO GORGEOUS. When they were sent to us at the museum.. they are trashed almost beyond recognition [19:25:31] jars and jars of arm ossicles broken into pieces... [19:26:35] LAT : 42.275281 , LON : -125.072498 , DEPTH : 1814.9913 m, TEMP : 2.15022 C, SAL : 34.57628 PSU, DO : 1.6759 mg/l, TURBIDITY : 2.5275 FTU [19:26:54] AnnieLindgren leaves the room [19:28:35] the spines have pedicellariae which act like "bear traps" so they are pedators [19:28:55] they capture pelagic crustaceans on the spines..which are caught and moved down into the mouth [19:29:17] ha! did they said Dave Wright compensator trick? he will be amused [19:29:41] I've called these "death velcro" [19:29:59] AnnieLindgren leaves the room [19:30:46] In my experience, they definitely capture amphipods and various small crustaceans..but not sure beyond that. [19:31:09] gamete-shedding posture...say somepeople [19:31:36] LAT : 42.27514 , LON : -125.072788 , DEPTH : 1813.9608 m, TEMP : 2.15004 C, SAL : 34.57911 PSU, DO : 1.6944 mg/l, TURBIDITY : 2.4969 FTU [19:32:42] these holo have gonad in anterior end and a gonopore on the dorsal side [19:33:22] what's always interesting is seeing how these are spaced out. when trawled we get a LOT of them but all bunched together [19:34:56] mereditheverett leaves the room [19:36:36] LAT : 42.274895 , LON : -125.072567 , DEPTH : 1812.702 m, TEMP : 2.15973 C, SAL : 34.57897 PSU, DO : 1.71736 mg/l, TURBIDITY : 2.5763 FTU [19:37:57] rachelgulbraa leaves the room [19:39:30] abandoned larvacean house [19:39:36] a mucous structure [19:40:19] following up.. tweet with pic of the SAME brisingid species collected from trawl Hymenodiscus exilis https://twitter.com/echinoblog/status/1649497915512229888 [19:40:56] OMG! [19:41:35] ha ha. yes. [19:41:39] LAT : 42.27463 , LON : -125.072596 , DEPTH : 1810.8029 m, TEMP : 2.15842 C, SAL : 34.57775 PSU, DO : 1.66373 mg/l, TURBIDITY : 2.4115 FTU [19:41:48] Learning to ID those from fragments was fun. [19:43:36] AnnieLindgren leaves the room [19:46:38] LAT : 42.274544 , LON : -125.072587 , DEPTH : 1811.0281 m, TEMP : 2.16936 C, SAL : 34.57766 PSU, DO : 1.7156 mg/l, TURBIDITY : 2.4786 FTU [19:49:27] They emit mucus when agitated! [19:49:46] a good question.. not sure if they do this in situ [19:51:39] Buccinid gastropods...very diverse, all sorts of names [19:51:40] LAT : 42.274322 , LON : -125.072607 , DEPTH : 1808.818 m, TEMP : 2.16526 C, SAL : 34.57609 PSU, DO : 1.65599 mg/l, TURBIDITY : 2.4847 FTU [19:52:38] MBARI Ids these as Neptunea/Buccinum complex http://dsg.mbari.org/dsg/view/concept/Gastropoda [19:53:58] AnnieLindgren leaves the room [19:56:40] LAT : 42.274135 , LON : -125.072474 , DEPTH : 1798.2548 m, TEMP : 2.17192 C, SAL : 34.57672 PSU, DO : 1.66726 mg/l, TURBIDITY : 2.4664 FTU [19:57:41] munnopsid isopod [19:57:50] pelagiv isopod? [19:59:16] something like this https://twitter.com/mccullermi/status/1058405374490038272 [20:01:40] LAT : 42.274109 , LON : -125.072555 , DEPTH : 1799.372 m, TEMP : 2.17192 C, SAL : 34.57829 PSU, DO : 1.63701 mg/l, TURBIDITY : 2.4237 FTU [20:06:40] LAT : 42.274111 , LON : -125.072423 , DEPTH : 1795.9729 m, TEMP : 2.16211 C, SAL : 34.57808 PSU, DO : 1.69465 mg/l, TURBIDITY : 2.5214 FTU [20:10:10] robertcarney leaves the room [20:10:56] mereditheverett leaves the room [20:11:25] shrimp - Acanthephyridae Notostomus sp.? [20:11:41] LAT : 42.274 , LON : -125.072604 , DEPTH : 1796.779 m, TEMP : 2.16461 C, SAL : 34.5782 PSU, DO : 1.68946 mg/l, TURBIDITY : 2.5275 FTU [20:12:32] thomasmorrow leaves the room [20:12:43] I think that curled up fish in the water column is an eelpout [20:13:16] thanks Meredith! [20:16:41] LAT : 42.273876 , LON : -125.072617 , DEPTH : 1794.5583 m, TEMP : 2.16478 C, SAL : 34.58619 PSU, DO : 1.64208 mg/l, TURBIDITY : 2.4908 FTU [20:17:30] Mud bottom here is showing a little more mounding from worn-away burrowing. In all, bottom monotonous with little color mottling [20:20:13] Interesting [20:21:42] LAT : 42.273897 , LON : -125.072732 , DEPTH : 1793.6994 m, TEMP : 2.16526 C, SAL : 34.57837 PSU, DO : 1.70235 mg/l, TURBIDITY : 2.4542 FTU [20:21:56] mereditheverett leaves the room [20:23:56] christophermah leaves the room [20:23:58] is there a very small white? hydroid colony to right of shrip rostrum? [20:24:24] yes! it appears to be growing on it [20:24:43] "it" being the shrimp [20:26:43] LAT : 42.273854 , LON : -125.072651 , DEPTH : 1795.8486 m, TEMP : 2.16966 C, SAL : 34.57609 PSU, DO : 1.69877 mg/l, TURBIDITY : 2.442 FTU [20:26:56] nice hydroid tentacles showing [20:31:44] LAT : 42.27392 , LON : -125.072548 , DEPTH : 1790.9128 m, TEMP : 2.16734 C, SAL : 34.57702 PSU, DO : 1.67655 mg/l, TURBIDITY : 2.4908 FTU [20:36:45] LAT : 42.273879 , LON : -125.072453 , DEPTH : 1786.5768 m, TEMP : 2.16639 C, SAL : 34.57786 PSU, DO : 1.70843 mg/l, TURBIDITY : 2.6068 FTU [20:37:03] christophermah leaves the room [20:38:38] vehicles lost power [20:38:52] AnnieLindgren leaves the room [20:39:07] ruh roh [20:39:36] Welp. I guess we're done today. yikes. [20:40:00] yeah - we are done for today. They are doing no power recovery [20:40:11] michaelvecchione leaves the room [20:41:25] yikes. [20:41:59] my best to them.. no power recovery isn't fun.. [20:42:18] thanks Chris! Always great to have you on chat [20:43:48] christophermah leaves the room [20:43:56] robertcarney leaves the room [20:47:44] mereditheverett leaves the room [20:52:18] paigekoenig leaves the room [20:52:18] alexisweinnig leaves the room [21:05:27] emilycrum leaves the room [21:05:49] robertcarney leaves the room [21:15:23] philhartmeyer leaves the room [21:17:56] rachelgulbraa leaves the room [21:28:14] EX2301_DIVE05 ROV Ascending [21:33:34] philhartmeyer leaves the room [21:42:00] dhugallindsay leaves the room [21:56:54] rachelgulbraa leaves the room [22:11:11] gordonrees leaves the room [22:50:58] EX2301_DIVE05 ROV on Surface [22:55:55] EX2301_DIVE05 ROV Recovery Complete