http://lod.bco-dmo.org/id/dataset/893852 eng; USA utf8 dataset Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project Biological and Chemical Oceanography Data Management Office (BCO-DMO) Unavailable 508-289-2009 WHOI MS#36 Woods Hole MA 02543 USA info@bco-dmo.org http://www.bco-dmo.org Monday - Friday 8:00am - 5:00pm For questions regarding this resource, please contact BCO-DMO via the email address provided. pointOfContact 2023-04-12 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Summary of the HOV Alvin dives that occurred on R/V Atlantis cruise AT42-24 in the Western Atlantic margin and Gulf of Mexico in February and March 2020 2025-06-13 publication 2025-06-13 revision BCO-DMO Linked Data URI 2025-06-13 creation http://lod.bco-dmo.org/id/dataset/893852 Shawn M. Arellano Western Washington University - Shannon Point Marine Center principalInvestigator David B. Eggleston North Carolina State University - Center for Marine Science and Technology principalInvestigator Craig M. Young University of Oregon principalInvestigator Ruoying He North Carolina State University - Marine, Earth and Atmospheric Sciences principalInvestigator Biological and Chemical Oceanography Data Management Office (BCO-DMO) Unavailable 508-289-2009 WHOI MS#36 Woods Hole MA 02543 USA info@bco-dmo.org http://www.bco-dmo.org Monday - Friday 8:00am - 5:00pm For questions regarding this resource, please contact BCO-DMO via the email address provided. publisher Cite this dataset as: Young, C. M., Arellano, S. M., Eggleston, D. B., He, R. (2025) Summary of the HOV Alvin dives that occurred on R/V Atlantis cruise AT42-24 in the Western Atlantic margin and Gulf of Mexico in February and March 2020. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2025-06-13 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/893852 [access date] AT42-24 Alvin Dive Summary Dataset Description: Methods and Sampling: &lt;p&gt;Benthic invertebrates were collected, and equipment was either deployed, recovered, or both on dives using HOV Alvin.&lt;/p&gt; Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1851383 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1851383 Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1851286 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1851286 Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1851421 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1851421 onGoing Shawn M. Arellano Western Washington University - Shannon Point Marine Center 360-650-3634 Western Washington University 1900 Shannon Point Road Anacortes WA 98221 USA arellas@wwu.edu pointOfContact David B. Eggleston North Carolina State University - Center for Marine Science and Technology 919-515-7840 32800 Faucette Drive PO Box 8208 Raleigh NC 27695 USA eggleston@ncsu.edu pointOfContact Craig M. Young University of Oregon 541-346-7274 Oregon Institute of Marine Biology P.O. Box 5389 Charleston Oregon 97420 USA cmyoung@uoregon.edu pointOfContact Ruoying He North Carolina State University - Marine, Earth and Atmospheric Sciences 919-513-0249 Jordan Hall - Rm 4149 Raleigh NC 27695-8208 USA rhe@ncsu.edu pointOfContact asNeeded Dataset Version: 1 Unknown Date Dive_Number Site_Name Lat Lon Depth Pilot Port_observer Stbd_observer HOV Alvin theme None, User defined date dive_id site latitude longitude depth person name featureType BCO-DMO Standard Parameters HOV Alvin instrument BCO-DMO Standard Instruments AT42-24 AT42-24_Alvin_Dives service Deployment Activity Western Atlantic margin and Gulf of Mexico Western Atlantic margin and Gulf of Mexico from Woods Hole to Gulfport, Mississippi, depth range 500 m-3300 m place Locations otherRestrictions otherRestrictions Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use. Collaborative Research: dispersal depth and the transport of deep-sea, methane-seep larvae around a biogeographic barrier https://wp.wwu.edu/arellanolab/category/salt/ Collaborative Research: dispersal depth and the transport of deep-sea, methane-seep larvae around a biogeographic barrier <p><em>NSF Award Abstract:</em><br /> Ever since hydrothermal vents and methane seeps were first discovered in the deep ocean more than 40 years ago, scientists have wondered how these isolated communities, fully dependent on underwater "islands" of toxic chemicals, are first colonized by organisms, and how the populations of these specialized animals are exchanged and maintained. These fundamental processes depend on the transport of babies (larvae) by the ocean currents, yet because the larvae are microscopic and diluted in the vastness of the ocean, it is very difficult to determine where and how they drift. This project uses an autonomous underwater vehicle to collect larvae from precise regions of the water column. Larval traps on the bottom and chemical analyses of larval shells will also be used to determine the depths where larvae swim. These findings will provide realistic estimates for mathematical models that show how biology interacts with ocean currents to predict which methane seeps will be colonized by larvae originating at different depths. A detailed knowledge of larval dispersal is needed for conservation and management of the deep sea. Without such information, we cannot know the best placement of marine protected areas, nor can we facilitate the reestablishment of communities impacted by deep-sea mining, drilling, or other human activities. This project will provide hands-on at-sea training for college students to learn the rapidly vanishing skills needed for studies of larvae and embryos in their natural habitats. Learning opportunities will also be available to individuals of all ages through new, interactive exhibits on deep-sea biology and larval ecology produced for small museums and aquaria on the coasts of Oregon, Washington and North Carolina.</p> <p>Reliable estimates of connectivity among metapopulations are increasingly important in marine conservation biology, ecology and phylogeography, yet biological parameters for biophysical models in the deep sea remain largely unavailable. The movements of deep-sea vent and seep larvae among islands of habitat suitable for chemosynthesis have been inferred from current patterns using numerical modeling, but virtually all such models have used untested assumptions about biological parameters that should have large impacts on the predictions. This project seeks to fill in the missing biological parameters while developing better models for predicting the dispersal patterns of methane seep animals living in the Gulf of Mexico and on the Western Atlantic Margin. Despite the existence of similar seeps at similar depths on two sides of the Florida peninsula, the Western Atlantic seeps support only a subset of the species found in the Gulf of Mexico. It is hypothesized that the ability of larvae to disperse through the relatively shallow waters of the Florida Straits depends on an interaction between the adult spawning depth and the dispersal depth of the larvae. Dispersal depth, in turn, will be influenced by larval flotation rates, swimming behaviors, feeding requirements, and ontogenetic migration patterns during the planktonic period. The recently developed SyPRID sampler deployed on AUV Sentry will be used to collect larvae from precise depth strata in the water column, including layers very near the ocean floor. Larval traps deployed on the bottom at three depths in each region will be used in conjunction with the plankton collections to determine what proportion of larvae are demersal. Comparisons of stable oxygen isotopes between larval and juvenile mollusk shells will provide information on the temperatures (and therefore depths) that larvae develop, and geochemical analyses of larval and juvenile shells will determine whether larval cohorts mix among depth strata. Ocean circulation and particle transport modeling incorporating realistic biological parameters will be used to predict the movements of larvae around the Florida Peninsula for various spawning depths and seasons.</p> <p>This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.</p> SALT largerWorkCitation project eng; USA oceans Western Atlantic margin and Gulf of Mexico; Western Atlantic margin and Gulf of Mexico from Woods Hole to Gulfport, Mississippi, depth range 500 m-3300 m -91.5049 -73.8225 26.0287 38.0475 2020-02-25 2020-03-11 Methane seeps on the shelf and slope of Louisiana, Mississippi, Florida, North Carolina, Virginia and Maryland 0 BCO-DMO catalogue of parameters from Summary of the HOV Alvin dives that occurred on R/V Atlantis cruise AT42-24 in the Western Atlantic margin and Gulf of Mexico in February and March 2020 Biological and Chemical Oceanography Data Management Office (BCO-DMO) Unavailable 508-289-2009 WHOI MS#36 Woods Hole MA 02543 USA info@bco-dmo.org http://www.bco-dmo.org Monday - Friday 8:00am - 5:00pm For questions regarding this resource, please contact BCO-DMO via the email address provided. pointOfContact http://lod.bco-dmo.org/id/dataset-parameter/893952.rdf Name: Date Units: unitless Description: <p>Date of dive</p> http://lod.bco-dmo.org/id/dataset-parameter/893953.rdf Name: Dive_Number Units: unitless Description: <p>Dive number</p> http://lod.bco-dmo.org/id/dataset-parameter/893954.rdf Name: Site_Name Units: unitless Description: <p>Site name</p> http://lod.bco-dmo.org/id/dataset-parameter/893955.rdf Name: Lat Units: degrees North Description: <p>Latitude of dive</p> http://lod.bco-dmo.org/id/dataset-parameter/893956.rdf Name: Lon Units: degrees East Description: <p>Longitude of dive</p> http://lod.bco-dmo.org/id/dataset-parameter/893957.rdf Name: Depth Units: meters Description: <p>Depth of dive</p> http://lod.bco-dmo.org/id/dataset-parameter/893958.rdf Name: Pilot Units: unitless Description: <p>Alvin Pilot</p> http://lod.bco-dmo.org/id/dataset-parameter/893959.rdf Name: Port_observer Units: unitless Description: <p>Name of observer</p> http://lod.bco-dmo.org/id/dataset-parameter/893960.rdf Name: Stbd_observer Units: unitless Description: <p>Name of observer</p> GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom Biological and Chemical Oceanography Data Management Office (BCO-DMO) Unavailable 508-289-2009 WHOI MS#36 Woods Hole MA 02543 USA info@bco-dmo.org http://www.bco-dmo.org Monday - Friday 8:00am - 5:00pm For questions regarding this resource, please contact BCO-DMO via the email address provided. pointOfContact https://osprey.bco-dmo.org/dataset/893852/data/download download onLine dataset &lt;p&gt;Benthic invertebrates were collected, and equipment was either deployed, recovered, or both on dives using HOV Alvin.&lt;/p&gt; Specified by the Principal Investigator(s) - Imported original file &quot;AT42-24 Dive Metadata.xlsx&quot; into the BCO-DMO system. - Renamed fields to comply with BCO-DMO naming conventions. - Converted dates to YYYY-MM-DD format. - Saved the final file as &quot;893852_v1_at42-24_alvin_dive_summary.csv&quot;. Specified by BCO-DMO Data Managers asNeeded 7.x-1.1 Biological and Chemical Oceanography Data Management Office (BCO-DMO) Unavailable 508-289-2009 WHOI MS#36 Woods Hole MA 02543 USA info@bco-dmo.org http://www.bco-dmo.org Monday - Friday 8:00am - 5:00pm For questions regarding this resource, please contact BCO-DMO via the email address provided. pointOfContact HOV Alvin HOV Alvin PI Supplied Instrument Name: HOV Alvin Instrument Name: HOV Alvin Instrument Short Name: Instrument Description: Human Occupied Vehicle (HOV) Alvin is part of the National Deep Submergence Facility (NDSF). Alvin enables in-situ data collection and observation by two scientists to depths reaching 6,500 meters, during dives lasting up to ten hours. Commissioned in 1964 as one of the world’s first deep-ocean submersibles, Alvin has remained state-of-the-art as a result of numerous overhauls and upgrades made over its lifetime. The most recent upgrades, begun in 2011 and completed in 2021, saw the installation of a new, larger personnel sphere with a more ergonomic interior; improved visibility and overlapping fields of view; longer bottoms times; new lighting and high-definition imaging systems; improved sensors, data acquisition and download speed.  It also doubled the science basket payload, and improved the command-and-control system allowing greater speed, range and maneuverability. With seven reversible thrusters, it can hover in the water, maneuver over rugged topography, or rest on the sea floor.  It can collect data throughout the water column, produce a variety of maps and perform photographic surveys.  Alvin also has two robotic arms that can manipulate instruments, obtain samples, and its basket can be reconfigured daily based on the needs of the upcoming dive. Alvin's depth rating of 6,500m gives researchers in-person access to 99% of the ocean floor.  Alvin is a proven and reliable platform capable of diving for up to 30 days in a row before requiring a single scheduled maintenance day.  Recent collaborations with autonomous vehicles such as Sentry have proven extremely beneficial, allowing PIs to visit promising sites to collect samples and data in person within hours of their being discovered, and UNOLs driven technological advances have improved the ability for scientific outreach and collaboration via telepresence Alvin is named for Allyn Vine, a WHOI engineer and geophysicist who helped pioneer deep submergence research and technology. (from https://www.whoi.edu/what-we-do/explore/underwater-vehicles/hov-alvin/, accessed 2022-09-09) Cruise: AT42-24 AT42-24 R/V Atlantis Community Standard Description International Council for the Exploration of the Sea R/V Atlantis vessel AT42-24 Craig M. Young University of Oregon Deployment: AT42-24_Alvin_Dives AT42-24_Alvin_Dives HOV Alvin Community Standard Description International Council for the Exploration of the Sea HOV Alvin submarine-manned R/V Atlantis Community Standard Description International Council for the Exploration of the Sea R/V Atlantis vessel HOV Alvin Community Standard Description International Council for the Exploration of the Sea HOV Alvin submarine-manned