76534d05-ba4e-47b7-9685-0a8c88404ef2 eng utf8 dataset dataset NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom polardatacentre@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact 2023-06-29 ISO 19115 Geographic Information - Metadata ISO 19115:2003(E) European Petroleum Survey Group (EPSG) Geodetic Parameter Registry 2008-11-12 publication European Petroleum Survey Group EPSGadministrator@iogp.org https://www.epsg-registry.org/ EPSG Geodetic Parameter Dataset The EPSG Geodetic Parameter Dataset is a structured dataset of Coordinate Reference Systems and Coordinate Transformations, accessible through this online registry. information publisher urn:ogc:def:crs:EPSG::3031 6.18.3 High-resolution three-dimensional images of deep-sea bamboo corals Acanella arbuscula and Keratoisis sp. collected in the Baffin Bay and Davis Strait during the CCGS Amundsen expedition in 2021 2023-06-29 creation 2023-06-29 revision 2023-06-29 publication 2023-06-29 released 1.0 https://doi.org/10.5285/76534d05-ba4e-47b7-9685-0a8c88404ef2 doi GB/NERC/BAS/PDC/01752 https://data.bas.ac.uk/ NE/S007210/1 award EP/T02593X/1 award Please cite this item as: Williams, T.J., Katsamenis, O.L., Basford, P.J., Solan, M., Foster, G.L., Standish, C., Godbold, J.A., & Archambault, P. (2023). High-resolution three-dimensional images of deep-sea bamboo corals Acanella arbuscula and Keratoisis sp. collected in the Baffin Bay and Davis Strait during the CCGS Amundsen expedition in 2021 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/76534d05-ba4e-47b7-9685-0a8c88404ef2 High-resolution X-ray computed tomography images of two deep-sea bamboo corals (Acanella arbuscula, Johnson, 1862; Keratoisis sp., Wright, 1869) collected from Baffin Bay and Davis Strait during a research expedition on board the CCGS Amundsen in July-August 2021. Corals were imaged using Micro-Focused X-Ray Computed Tomography at the Micro-Vis X-ray Imaging Centre (Southampton, UK) to non-destructively investigate their skeletal architecture, calcification strategies and growth patterns. Supported by a National Environmental Research Council Funded (INSPIRE) PhD [grant number NE/S007210/1, 2019-2027, awarded to T.J.W] and the National Research Facility for Lab X-ray CT (NXCT) [EPSRC grant number EP/T02593X/1]. No credit. completed Williams, Thomas J. University of Southampton Researcher author Katsamenis, Orestis L. University of Southampton Researcher author Basford, Philip J. University of Southampton Researcher author Solan, Martin University of Southampton Researcher author Foster, Gavin L. University of Southampton Researcher author Standish, Christopher University of Southampton Researcher author Godbold, Jasmin A. University of Southampton Researcher author Archambault, Philippe Universite Laval Researcher author NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact asNeeded completed EARTH SCIENCE > Biosphere > Ecological Dynamics > Biodiversity EARTH SCIENCE > Oceans > Marine Biology > Marine Invertebrates EARTH SCIENCE > Oceans > Marine Sediments > Bioturbation EARTH SCIENCE > Oceans > Marine Sediments > Sediment Chemistry EARTH SCIENCE > Oceans > Marine Biology theme Global Change Master Directory (GCMD) Science Keywords 2026-01-27 publication 23 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Greenbelt MD United States of America https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Acanella Bamboo coral Keratoisis calcite microCT skeleton theme Baffin Bay, Disko Fan Arctic Davis Strait Arctic place Habitats and biotopes Oceanographic geographical features theme GEMET - INSPIRE themes, version 1.0 2021-01-06 revision otherRestrictions no limitations to public access otherRestrictions no limitations license Open Government Licence v3.0 otherRestrictions None. url url crossReference url url crossReference doi doi crossReference textTable eng utf8 biota 58.19571 58.19571 63.34533 63.34533 2021-07-29 2021-07-29 It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk. NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information distributor application/pdf image/tiff audio/mp4 bytes 104152956928 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=76534d05-ba4e-47b7-9685-0a8c88404ef2 WWW:LINK-1.0-http--link Get Data Download data download bytes 104152956928 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=76534d05-ba4e-47b7-9685-0a8c88404ef2 WWW:LINK-1.0-http--link Get Data Download data download bytes 104152956928 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=76534d05-ba4e-47b7-9685-0a8c88404ef2 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: Five specimens of Acanella arbuscula and four specimens of Keratoisis sp. were collected from two stations (Davis Strait; 63.34533 degrees N; 58.19571 degrees W, 1311 m, 29th July 2021, Disko Fan; 67.96631 degrees N, 59.49381 degrees W, 889 m, 2nd August 2021) using a remotely operated submersible (Sub-Atlantic® Comanche, Forum Energy TechnologiesTM, USA) during the 2021 Amundsen expedition (AMD21 Leg 2; 15th July 2021 - 12th August 2021, CCGS Amundsen). Where possible, corals were sampled at or close to the basal internode (near the base of the specimen at the sediment surface). Any external debris and residing fauna were carefully removed from the collected colonies using tweezers before each specimen was sealed in a plastic Ziplock bag and frozen at -20 degrees Celsius. After 72 hours, the specimens were removed from the freezer and carefully cleaned with jets of re-circulated 0.45 micrometer membrane-filtered seawater (FSW) at 4 degrees Celsius using a WaterPikTM (Johannes & Wiebe 1970) before being placed back in -20 degrees Celsius. The cleaned skeleton portions were then sealed in new Ziplock plastic sample bags enclosed in Tupperware (Acanella arbuscula) or PVC vinyl tubing (Keratoisis sp.) before being transported to the University of Southampton, UK. Reconstruction of biogenic structures was achieved using a Nikon XT custom designed micro-focus computed tomography system (based on the XT H 225 ST, Nikon Tring, UK) housed within the 3D X-ray Histology (XRH) facility (www.muvis.org). Coral specimens were securely positioned vertically in Perspex holding tubes with polystyrene bungs to ensure stability during rotation and scanning. Scans were conducted at 80 KVp using a Molybdenum target. Lower resolution scans (50 micrometer) used a 12 W power, while higher resolution scans (15 micrometer) reduced it to 6.9 W for a sharper X-ray focal spot. A water tube was also scanned under the same conditions as the samples to serve as a density reference. CT Pro 3D 6.6 or 6.7 software (Nikon Xtek, Tring UK) was used for all reconstructions. Due to the limited scanner field of view, multiple overlapping scan positions were used and merged after reconstruction to remove cone beam artifacts. This merging process was facilitated by a custom macro in Fiji, allowing alignment of the scans based on the same slice. The script could also adjust image contrast to compensate for any heel effect in the absence of density calibration. The final 32-bit volume was converted to an 8-bit volume using Fiji/ImageJ (v 1.53c; Schindelin, Arganda-Carreras, Frise et al., 2012) and then converted to stacked tagged image file format (TIFF) images to reduce data size and facilitate further processing. More detailed methodology surrounding sampling and scanning can be found in Williams, Standish, Archambault et al. [in prep] and Williams, Katsamenis, Basford, et al. [in prep], respectively. Data collection: Nikon XT custom designed micro-focus computed tomography system (based on the XT H 225 ST, Nikon Tring, UK Remotely operated submersible (Sub-Atlantic Comanche, Forum Energy TechnologiesTM, USA) WaterPikTM (Johannes & Wiebe 1970) CT Pro software (6.6/6.7; Nikon Xtek, Tring UK) Fiji/ImageJ software (v 1.53c; Schindelin et al., 2012) Data quality: Coral specimens were securely positioned vertically in Perspex holding tubes with polystyrene bungs to ensure stability during rotation and scanning. A water tube was also scanned under the same conditions as the samples to serve as a density reference. CT Pro 3D 6.6 or 6.7 software (Nikon Xtek, Tring UK) was used for all reconstructions. During concatenation of separate scans, image contrast was adjusted to compensate for any heel effect in the absence of density calibration. Conversion to stacked tagged image file format (TIFF) images was lossless. asNeeded completed