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

• Main Authors: Centre, UK Polar Data, Williams, Thomas J., Standish, Christopher, Godbold, Jasmin A., Solan, Martin, Katsamenis, Orestis L., Foster, Gavin L., Basford, Philip J., Archambault, Philippe
• Format: Text
• Language: English
• Published: Natural Environment Research Council 2023
• Subjects: Baffin Bay; Baffin; Davis Strait
• Online Access: https://eprints.soton.ac.uk/479397/

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),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].,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-Atlanticµ 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 ...