9f615353-c621-4216-865e-7d38a9b21e2c 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 2020-10-15 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 Pelagic trophic network in the Scotia Sea (2006-2009) 2020-10-15 creation 2020-10-15 revision 2020-10-15 publication 2020-10-15 released 1.0 https://doi.org/10.5285/9f615353-c621-4216-865e-7d38a9b21e2c doi GB/NERC/BAS/PDC/01407 https://data.bas.ac.uk/ NE/N005937/1 award NE/L011840/1 award Please cite this item as: Lopez-Lopez, L., Genner, M., Tarling, G., Saunders, R., & O'Gorman, E. (2020). Pelagic trophic network in the Scotia Sea (2006-2009) (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/9f615353-c621-4216-865e-7d38a9b21e2c Among all possible interaction types, trophic interactions are easily observable and essential in terms of energy transfer, and thus binary networks have arisen as the most straightforward method to describe complex ecological communities. These food-web models also inform on the ecosystem dynamics and function, and the patterns arising from food web topology can be indicators for ecosystem stability. We present a comprehensive pelagic network for the Scotia Sea underpinned by surveys and dietary studies conducted in the Scotia Sea in the last century. Selection of the trophic links followed a protocol based on taxonomy and geographic location, and was further refined based on the consumer and resource depth ranges and their body size ratios. The resulting network consists on 228 nodes and 10880 links which represent the main trophic paths in the Scotia Sea ecosystem and can serve as a basis for ecosystem modelling in the Scotia Sea or comparison with other ecosystems. Funding was provided by NERC Highlight Topic grant NE/N005937/1 and NERC Fellowship NE/L011840/1. No credit. completed Lopez-Lopez, Lucia Spanish Institute of Oceanography Researcher author Genner, Martin University of Bristol Researcher author Tarling, Geraint British Antarctic Survey Researcher author Saunders, Ryan British Antarctic Survey Researcher author O'Gorman, Eoin University of Essex 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 > Food-web Dynamics 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 Scotia Sea Southern Ocean pelagic ecosystem trophic interactions trophic network theme Scotia Sea South Atlantic 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 his data is governed by the NERC data policy and supplied under Open Government Licence v.3 otherRestrictions No constraints on access. url url crossReference url url crossReference doi doi crossReference textTable eng utf8 biota environment oceans -55.0 -30.0 -61.0 -53.0 2006-01-01 2009-12-31 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 1402880 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=9f615353-c621-4216-865e-7d38a9b21e2c WWW:LINK-1.0-http--link Get Data Download data download bytes 1402880 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=9f615353-c621-4216-865e-7d38a9b21e2c WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: The metaweb is primarily based on data gathered during the Discovery surveys (2006-2009) and complemented through a literature research to identify consumer-resource interactions in the Scotia Sea and Southern Ocean. Subsequently, we instigated a step-wise procedure based on taxonomy and geographic distribution for allocating interactions to each node in the network. The resources identified in stomach contents were often described to a lower taxonomic resolution than the taxa in our list of nodes. In such instances, we included links to all the taxa in our list of nodes that fell within that taxonomic group (e.g. if a predator was shown to feed on the copepod genus Clausocalanus, we would include feeding links between that predator and all Clausocalanus species in our metaweb). Note that we only followed this procedure up to the class level, i.e. we did not include links to all taxa in the case of phyla such as Crustacea or Mollusca. To avoid overestimating the number of links, we applied two filters to our list of links. (1) Only consumer-resource pairs whose vertical distribution is known to overlap were kept as links. (2) Feeding links were removed if the consumer-resource body mass ratio was unrealistically large or small. Data collection: R software v.3.5.3 Data quality: We tested the integrity of the network through a series of simulations in which between 1 and 25 nodes were randomly deleted (999 permutations without replacement). asNeeded completed