Presence records of Swifita pallida were downloaded from the following online databases: Marine Recorder (Feb 2019 snashot), GeMS v7i22, OBIS (21st May 2019) and NBN Atlas (13th May 2019). Additional known records that were not in these databases were provided by external individuals and extracted from Marine Scotland survey data. The data were processed to remove duplicates and records on land. Prior to model fitting, the point locations of records from the same named source and observed in the same year within the same 200 m grid cells were averaged.
Sources of environmental data:
Emodnet Bathymetry Portal - (https://portal.emodnet-bathymetry.eu/#) Grids D3 and D4 downloaded on 10th Jan 2019.
Particle size analysis results were downloaded from BGS data portal http://www.bgs.ac.uk/GeoIndex/offshore.htm in January 2019
Irish PSA results and habitat polygons were downloaded from https://jetstream.gsi.ie/iwdds/delivery/INFOMAR_VIEWER/index.html on 19th June 2019.
Polygons of rock at the seabed - Brown, L.S., Green, S.L., Stewart, H.A., Diesing, M., Downie, A.-L., Cooper, R. & Lillis, H., (2017), Semi-automated mapping of rock in the Irish Sea, Minches, western Scotland and Scottish continental shelf, JNCC Report No. 609, JNCC, Peterborough, ISSN 0963-8091 (https://hub.jncc.gov.uk/assets/5a0e0e45-a9a2-4bb9-84c1-a2845058cfb8)
Marine Recorder - Feb 2019 version download on 29th April 2019 (https://jncc.gov.uk/our-work/marine-recorder/#marine-recorder-data)
WestCOMs Model (Aleynik et al., 2016) products were provided to authors in June 2021 and are available for download from https://thredds.sams.ac.uk/thredds/catalog/scoats-test/COMPASS_WESTCOMS_...
Data and Resources
Field | Value |
---|---|
Publisher | |
Modified | 2023-09-20 |
Release Date | 2023-09-20 |
Identifier | 8504d6ef-439d-40de-b23a-e55b6191216a |
Spatial / Geographical Coverage Area | POLYGON ((-7.470703125 59.095261968626, -4.482421875 58.800583498649, -5.185546875 57.407611843834, -3.779296875 54.912540547022, -4.482421875 54.096046890326, -5.537109375 54.044473318279, -7.3388671875 55.588823220005, -8.349609375 58.480414388766)) |
Temporal Coverage | 2022-01-01 to 2023-09-30 |
License | UK Open Government Licence (OGL) |
Data Dictionary | A sampling bias layer was created from locations of benthic samples contained within Marine Recorder. A hybrid Gibbs model was fitted using Spatstat version 2.2 in R version 4.1.1. Spatial interaction parameters were then found and included in a hybrid Geyer saturation process with radii 2.6 and 35 km and respective saturation of 6 and 0.83. Predictions were made with sampling bias corrected by holding is constant at the median value across the whole region. |
Contact Name | Marine Directorate, Scottish Government |
Contact Email | |
Public Access Level | Public |