NERC Data Catalogue Service
Distribution of mesopelagic fish in the Scotia Sea from RMT25 and pelagic trawls deployed from RRS James Clark Ross and RRS John Biscoe
Mesopelagic fish were sampled in the Scotia Sea using a 25 m2 opening and closing rectangular midwater trawl during five research cruises on RRS John Biscoe and RRS James Clark Ross. Nets sampled discrete layers, from the surface to 1000 m during austral spring, summer and autumn. The data include 17726 individual fish records from 66 taxa, the most abundant of which were myctophids of the genera Electrona, Gymnoscopelus, Krefftichthys and Protomyctophum and bathylagids (Bathylagus sp.). Length (standard length, total length or pre-anal fin length) was measured for the majority of specimens (16837), with sex and weight data also collected for many.
The work was conducted as part of the BAS Ecosystems Programmes funded by the UK Natural Environment Research Council.
Simple
- Alternate title
- Polar Data Centre (PDC) record GB/NERC/BAS/PDC/01474
- Date (Publication)
- 2021-03-09
- Identifier
- http://www.antarctica.ac.uk/dms/metadata.php?id= / GB/NERC/BAS/PDC/01474
- Maintenance and update frequency
- unknown Unknown
- Keywords
-
- NDGO0001
- NERC OAI Harvesting
-
- NERC_DDC
- GCMD Parameter Valids
-
- EARTH SCIENCE > Biosphere > Ecological Dynamics > Community Structure
- EARTH SCIENCE > Oceans > Marine Biology > Fish
- EARTH SCIENCE > Oceans > Marine Environment Monitoring
- BAS Free-text keywords
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- Bathylagus
- Myctophidae
- Scotia Sea
- Southern Ocean
- distribution
- Use limitation
- Data released under Open Government Licence V3.0: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- Data released under 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
- 2006-10-24
- End date
- 2006-12-03
- Reference system identifier
- OGP / urn:ogc:def:crs:EPSG::4326
- Distribution format
-
- OnLine resource
- https://data.bas.ac.uk/full-record.php?id=GB/NERC/BAS/PDC/01336
- Hierarchy level
- dataset Dataset
Domain consistency
- Measure identification
- INSPIRE / Conformity_001
Conformance result
- Date
- Explanation
- See the referenced specification
- Pass
- No
- Statement
-
The data are largely consistent with the information published in Collins et al. (2008, 2012) and Piatkowski et al. (1994), but a few points to note:
1. Piatkowski et al. (1994) only included data from Station 1 and Station 2. Data from six additional nets from SW of South Georgia are included here.
2. Collins et al. (2012) only included stratified (non-target) nets, but the data includes fish caught in targeted hauls.
3. There is some uncertainty regarding the specific identification of fish of the genus Bathylagus. Collins et al. (2008) reported B. antarcticus, B. tenuis and B. gracilis, but preliminary molecular analysis (unpublished) suggests that there are four species. It is likely that the fish caught in the southern Scotia Sea are B. antarcticus, but others should be considered Bathylagus sp.
- File identifier
- GB_NERC_BAS_PDC_01474 XML
- Metadata language
- EnglishEnglish
- Hierarchy level
- dataset Dataset
- Date stamp
- 2021-03-09
- Metadata standard name
- NERC profile of ISO19115:2003
- Metadata standard version
- 1.0
Overviews
Spatial extent
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