Processing and analysis of Arctic Calanus occurrence records from OBIS and GBIF databases
This dataset contains quality-controlled georeferenced occurrence records of three Arctic Calanus species (Calanus finmarchicus, C. glacialis and C. hyperboreus), downloaded from the Ocean Biodiversity Information System (OBIS) and the Global Biodiversity Information Facility (GBIF) databases. Records span about 150 years of sampling (1870-2017), are located between 30 and 90 degrees north, and are distributed between the surface and 5000m deep. Physical (bathymetry) and environmental (temperature and sea-ice concentration) parameters are matched to each occurrence record. An html file provides the annotated source code for the data processing, analyses and figures produced for the publication: Freer JJ and Tarling GA (2023) Assessing key influences on the distribution and life-history of Arctic and boreal Calanus: Are online databases up to the challenge? Front. Mar. Sci. 10:908112.
This work was funded by DIAPOD (NE/P006213/1) and CHASE (NE/R012687/1) projects as part of the Changing Arctic Ocean Programme, with the former funded by the UKRI Natural Environment Research Council (NERC) and the latter, jointly by NERC and the German Federal Ministry of Education and Research (BMBF). Further support was provided by BIOPOLE National Capability Multicentre Round 2 funding from the Natural Environment Research Council (NE/W004933/1).
Simple
- Alternate title
- Polar Data Centre (PDC) record GB/NERC/BAS/PDC/01723
- Date (Publication)
- 2023-04-04
- Identifier
- http://www.antarctica.ac.uk/dms/metadata.php?id= / GB/NERC/BAS/PDC/01723
- Maintenance and update frequency
- unknown Unknown
- Keywords
-
- NDGO0001
- NERC OAI Harvesting
-
- NERC_DDC
- GCMD Parameter Valids
-
- EARTH SCIENCE > Biosphere > Ecological Dynamics > Biodiversity
- EARTH SCIENCE > Oceans > Marine Environment Monitoring
- BAS Free-text keywords
-
- Arctic
- GBIF
- OBIS
- sampling bias
- winter
- zooplankton
- Use limitation
- Data are released under the Open Government Licence V3.0: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- Data are released under the Open Government Licence V3.0: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.
- Metadata language
- EnglishEnglish
- Topic category
-
- Biota
- Environment
- Oceans
- Begin date
- 1870-01-01
- End date
- 2017-12-31
- Reference system identifier
- OGP / urn:ogc:def:crs:EPSG::4326
- Distribution format
-
- Hierarchy level
- dataset Dataset
Domain consistency
- Measure identification
- INSPIRE / Conformity_001
Conformance result
- Date
- Explanation
- See the referenced specification
- Pass
- No
- Statement
- Data processing steps carried out on the raw downloaded files are outlined in detail in the html file of annotated source code. In brief, records were excluded if they were erroneously located on land, in the Pacific sector or in the southern hemisphere; were not identified to species level; had missing identifiers for month or year of collection. Metadata fields for "sampling protocol" ad "lifestage" were cleaned by re-categorising entries into a condensed set of inputs. Duplicate records were removed as defined by records that had the following identical identifiers: species, longitude, latitude, year, month, day, minimum and maximum collection depth (OBIS), average collection depth (GBIF), life-stage. Lastly, cleaned OBIS and GBIF data were combined into a single dataset and duplicate occurrences between databases were removed using the same identical identifiers listed above. Records where average sample collection depth was greater than bathymetric depth were flagged and removed when creating appropriate figures.
- File identifier
- GB_NERC_BAS_PDC_01723 XML
- Metadata language
- EnglishEnglish
- Hierarchy level
- dataset Dataset
- Date stamp
- 2023-04-04
- Metadata standard name
- NERC profile of ISO19115:2003
- Metadata standard version
- 1.0