2733f2ad-e111-4b21-b695-c9452e4548a1 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 2025-06-10 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 Body length and maturity stage measurements of Antarctic krill caught during the South Orkneys science cruise JR15004 (2016) 2025-06-10 creation 2025-06-10 revision 2025-06-10 publication 2025-06-10 released 1.0 https://doi.org/10.5285/2733f2ad-e111-4b21-b695-c9452e4548a1 doi GB/NERC/BAS/PDC/02072 https://data.bas.ac.uk/ Please cite this item as: Saunders, R., Fielding, S., & Tarling, G.A. (2025). Body length and maturity stage measurements of Antarctic krill caught during the South Orkneys science cruise JR15004 (2016) (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/2733f2ad-e111-4b21-b695-c9452e4548a1 The dataset contains body length and maturity stage measurements of Antarctic krill caught from multiple RMT8 hauls conducted as part of science cruise JR15004 to the South Orkneys in January and February 2016. The measurement followed standard protocols as detailed in Morris et al 1988 and Makarov and Denys 1980. All measurements were made on a random subset of approximately 100-200 individuals per haul. The datasets include measurements made from a total of 11 hauls. The measurements were all made by a single analyst. The work was carried out as part of NERC Antarctic Logistics and Infrastructure Science funding for Southern Ocean Ecosystems. No credit. completed Saunders, Ryan British Antarctic Survey Researcher author Fielding, Sophie British Antarctic Survey Researcher author Tarling, Geraint A. 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 > Animal Taxonomy > Crustaceans 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 Antarctic krill Euphausia superba body length maturity theme South Orkney Islands Southern Ocean 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 Data are supplied under Open Government Licence v3.0 otherRestrictions None url url crossReference url url crossReference textTable eng utf8 biota environment oceans -46.8522 -46.4246 -60.5458 -60.2867 2016-02-02 2016-02-15 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 bytes 34816 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=2733f2ad-e111-4b21-b695-c9452e4548a1 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: Krill sampling was carried out during the scientific cruise JR15004 which studied the South Orkney Ecosystem between 15 January - 23 February 2016 on board the RRS James Clark Ross. Krill were sampled when located using a rectangular midwater trawl net (RMT8; 3 mm mesh). Krill samples were taken from RMT8 samples where there were sufficient numbers of krill to select 100 decent state specimens for length frequency and maturity. Measurements of krill body length were obtained from randomly selected sub-samples (100-200 individuals per net), measured as the distance between the front of the eye and the tip of the telson, with measurements rounded down to the nearest millimetre (Morris et al. 1988). Information on sex and maturity status were collected based on the scale of Makarov and Denys (1981) with the nomenclature described by Morris et al. (1988). All measurements and staging was carried out by a single analyst (Ryan Saunders). A total of 11 successful RMT8 hauls were undertaken to ground truth the acoustic observations and inform on population structure, primarily around the northwest shelf-break of the South Orkney Islands. Data collection: Krill were captured with a rectangular midwater trawl net (RMT8; 3 mm mesh). Data quality: All body length measurements were rounded down to the nearest mm. All were performed by a single analyst (Ryan Saunders) to minimise inter-analyst error and bias. Net hauls cover a variable distance of between 0.1 and 1 nautical mile. asNeeded completed