2c313c0b-7cf4-4206-8cd1-adc8d0530794 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 2025-04-29 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 Marine benthic biodiversity survey comprising seabed video and imagery from Rothera Point, November 2023 to February 2024 2025-04-29 creation 2025-04-29 revision 2025-04-29 publication 2025-04-29 released 1.0 https://doi.org/10.5285/2c313c0b-7cf4-4206-8cd1-adc8d0530794 doi GB/NERC/BAS/PDC/02051 https://data.bas.ac.uk/ Please cite this item as: Mathews, R., Peck, L., Barnes, D., Morley, S., & Flint, G. (2025). Marine benthic biodiversity survey comprising seabed video and imagery from Rothera Point, November 2023 to February 2024 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/2c313c0b-7cf4-4206-8cd1-adc8d0530794 This dataset comprises video and imagery captured around Rothera Point, Adelaide Island on the West Antarctic Peninsula between November 2023 and February 2024. The data was captured as part of a biodiversity survey on an area to the North of Rothera Research Station. Operations were conducted off small boats and allowed data to be collected in shallow waters between 10 m and 60 m water depth. The dataset includes: seabed imagery captured using a down-facing drop camera, video footage from a Boxfish Luna remotely operated underwater vehicle (ROV), timelapse imagery from a camera installed on the Rothera Research station watch tower and video and imagery of a sediment profiler experiment of the seabed. Data were collected by personnel at BAS, funded by the Antarctic Infrastructure Modernisation Project (AIMP) Runway Project. No credit. completed Mathews, Ryan British Antarctic Survey Researcher author Peck, Lloyd British Antarctic Survey Researcher author Barnes, David British Antarctic Survey Researcher author Morley, Simon British Antarctic Survey Researcher author Flint, Gareth British Antarctic Survey 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 > Aquatic Habitat > Benthic Habitat EARTH SCIENCE > Biosphere > Aquatic Habitat > Coastal Habitat EARTH SCIENCE > Land Surface > Erosion/Sedimentation > Sediment Composition EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography EARTH SCIENCE > Oceans > Marine Sediments > Sedimentary Structures EARTH SCIENCE > Oceans > Ocean Optics > Turbidity EARTH SCIENCE > Oceans > Ocean Temperature > Sea Surface Temperature EARTH SCIENCE > Oceans > Ocean Temperature > Water Temperature EARTH SCIENCE > Oceans > Salinity/Density > Salinity EARTH SCIENCE > Oceans > Sea Ice > Icebergs EARTH SCIENCE > Biosphere > Animal Taxonomy EARTH SCIENCE > Biosphere > Zoology EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography EARTH SCIENCE > Oceans > Marine Biology EARTH SCIENCE > Oceans > Marine Environment Monitoring 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 Adelaide Island Antarctic benthos Drop camera ROV Seabed imagery shallow water communities theme Hangar Cove Antarctica North Cove Antarctica Rothera Research Station Antarctica Rothera Point Antarctica Adelaide Island Antarctica West Antarctic Peninsula Antarctica place Habitats and biotopes Land cover Oceanographic geographical features theme GEMET - INSPIRE themes, version 1.0 2021-01-06 revision otherRestrictions public access limited according to Article 13(1)(e) of the INSPIRE Directive license Open Government Licence v3.0 otherRestrictions Data supplied under Open Government Licence v3.0 otherRestrictions This dataset is under embargo until the publication of the associated manuscript. url url crossReference url url crossReference url url crossReference url url crossReference textTable eng utf8 biota -68.13456 -67.56902 -67.57 -67.55663 2023-11-16 2024-02-19 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 text/csv application/pdf image/jpeg image/png video/mp4 bytes 117037858816 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=2c313c0b-7cf4-4206-8cd1-adc8d0530794 WWW:LINK-1.0-http--link Get Data Download data download bytes 117037858816 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=2c313c0b-7cf4-4206-8cd1-adc8d0530794 WWW:LINK-1.0-http--link Get Data Download data download bytes 117037858816 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=2c313c0b-7cf4-4206-8cd1-adc8d0530794 WWW:LINK-1.0-http--link Get Data Download data download bytes 117037858816 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=2c313c0b-7cf4-4206-8cd1-adc8d0530794 WWW:LINK-1.0-http--link Get Data Download data download bytes 117037858816 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=2c313c0b-7cf4-4206-8cd1-adc8d0530794 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: Still imagery was collected using a drop camera built and designed by the BAS marine engineering department (model number). Images were geolocated (using a GPS waypoint at time of image capture), and associated conductivity, temperature and depth (CTD) + turbidity data were collected from a Swift CTD attached the legs of the drop camera frame. Drop cam was lowered to seabed where the first image was taken and assessed for quality. The vessel was allowed to drift approximately 2 metres and then the process was repeated. Twenty images were taken at each site. Images were edited for white balance and contrast. Identification and counts of all taxa were made upon review of the images. Video was collected using an ROV which was flown at approximately 1 m above the seabed. Transects differed in length, between 15 minutes to over an hour, depending on light levels and power consumption of the ROV. Stills were extracted from the ROV video by a random number generator to decide on which frame of video was used. ROV stills were analysed in the same manner as the drop cam images. A novel sediment profiler (SeaPen) device was used to measure the hardness of the seabed by depth of penetration of a needle under a weight. As with the Dropcam imagery, the frame was lowered to the seabed, until contact was made, at which point the operator allowed the weighted bar to free fall from the set distance (40cm). The device used a GoPro attached to the legs to film the needle (attached to the weighted bar) penetrating the seabed. This footage was reviewed later to determine the depth of penetration. Timelapse Cameras were also set up to overlook the survey area from above the operations and flight tower at Rothera Research station. Images were set to an interval of 1 every 10 minutes, which were converted into a timelapse video. Iceberg movement was observed to manually assess water current speed and direction. There are additional maps that include the Zone sites, including transects of the ROV, Drop Cam, SeaPen and CTD deployments. Data collection: The following instruments and software were used: Drop Cam (Built by BAS Antarctic Marine Engineers) ROV (Boxfish Luna) CTD + turbidity (Valeport SWiFT) Steel sediment hand scoop SeaPen (Built by BAS project staff and AME) Endecott Minor 200 sieve shaker with 7 test sieves (4.00 mm, 2.36 mm, 1.0 mm, 500 nanometres, 250 nanometres, 125 nanonetres, 63 nanometres and receiver pot) Timelapse Cameras (Brinno TLC2020-C) GoPro (Hero 10) PRIMER 7.0.24 R Studio 2024.09.1 Data quality: Still imagery was quality assured in-situ via a live-view screen, this allowed repeated images to be taken assuring enough data from each site. Images were identified twice to allow an overlap for quality control. The CTD was calibrated by Valeport. All taxa in the sediment samples were identified under microscope. Images of and a subsample of taxa were sent to experts for further identification. The ROV video stills were only accepted under strict criteria. The ROV needed to be at less than 1 m altitude above the seabed, at an angle of 45 degrees or greater. The frame needed to be in focus with adequate lighting for species identification. The SeaPen required the GoPro's to be reviewed on a computer screen. As such repeat data collection trips were made to certain sites to make sure enough data was collected per site. asNeeded completed