60f9b354-2cbf-4d4d-84f7-13c9224f82d4 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 2020-10-21 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 Exuviae krill flux in the northern Scotia Sea from January 2018 to December 2018 2020-10-21 creation 2020-10-21 revision 2020-10-21 publication 2020-10-21 released 1.0 https://doi.org/10.5285/60f9b354-2cbf-4d4d-84f7-13c9224f82d4 doi GB/NERC/BAS/PDC/01408 https://data.bas.ac.uk/ Please cite this item as: Manno, C. (2020). Exuviae krill flux in the northern Scotia Sea from January 2018 to December 2018 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/60f9b354-2cbf-4d4d-84f7-13c9224f82d4 This dataset is referring to 1-year time series of particle flux, as measured by a shelf moored sediment traps (WCB) located in the Southern Ocean (northern Scotia Sea sector), a globally important region of atmospheric CO2 drawdown. This sector holds >50% of the circumpolar krill stock of Antarctic krill and is the geographic focus for the krill fishing industry. The dataset includes the specific contribution of krill components to the total C flux parameters (such as exuviae, faecal pellets and carcasses) within a period from January to December 2018. Values of krill seasonal standing stock estimated from krill standard lengths is also included in the dataset. The dataset allow the quantification of the relevant contribution of krill to the POC flux. Since abundance of Krill around South Georgia is environmentally influenced, the dataset highlights the sensitivity of POC flux to rapid regional environmental change. No credit. completed Manno, Clara 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 > Ecological Dynamics > Biomass EARTH SCIENCE > Oceans > Marine Biology > Marine Invertebrates EARTH SCIENCE > Oceans > Ocean Chemistry > Organic Carbon 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 POC carbon flux faecal pellets krill sediment trap theme northern Scotia Sea 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 This data is governed by the NERC Data Policy: https://www.ukri.org/who-we-are/nerc/our-policies-and-standards/nerc-data-policy/ otherRestrictions This data is governed by the NERC data policy and supplied under Open Government Licence v.3 url url largerWorkCitation url url crossReference textTable eng utf8 biota environment oceans -37.93316 -37.93316 -53.79833 -53.79833 2018-01-01 2018-12-31 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/plain text/csv bytes 5222 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=60f9b354-2cbf-4d4d-84f7-13c9224f82d4 WWW:LINK-1.0-http--link Get Data Download data download bytes 5222 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=60f9b354-2cbf-4d4d-84f7-13c9224f82d4 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: Sample were collected by using sediment trap deployed on bottom-tethered moorings during WCB cruise JR16003. Once in the laboratory, sample were then divided into a series of replicate fractions for subsequent analysis using a McLane rotary sample splitter (McLane Labs, Falmouth, MA, USA). POC was measured by combustion in an elemental analyser (CHN); Krill faecal pellets were counted under light microscopy. The dimensions of krill faecal pellets were measured (length and width) using an ocular micrometer. Exuviae and carcasses of krill were picked out under a light microscope and their dimensions measured. They were then rinsed and dried at 60°C for 24 hours before their dry weight (DW) was measured. The length of the uropod from exuviae randomly picked from each sediment trap sample bottle was measured. Krill total length was estimated from uropod length. Data collection: - Sediment trap deployed on fixed mooring platform - Sediment trap splitter - CHN auto-analyser - Light microscope - 60 degree Celsius oven and a balance for dry mass calculation Data quality: Physical data acquired during the sediment trap deployment suggest the record was not subjected to major hydrodynamic biases since mean current velocities near to the sediment traps were < 10 cm s-1 and we assumed no significant lateral advection occurred. asNeeded completed