BGS Hosted Metadata
Exuviae krill flux in the northern Scotia Sea from January 2018 to December 2018
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.
Simple
- Date (Creation)
- 2020-10-21
- Date (Revision)
- 2020-10-21
- Date (Publication)
- 2020-10-21
- Date (released)
- 2020-10-21
- Edition
-
1.0
- Unique resource identifier
- https://doi.org/10.5285/60f9b354-2cbf-4d4d-84f7-13c9224f82d4
- Codespace
-
doi
- Unique resource identifier
- GB/NERC/BAS/PDC/01408
- Codespace
- Other citation details
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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
- Credit
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No credit.
- Status
- Completed
- Point of contact
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Organisation name Individual name Electronic mail address Role British Antarctic Survey Manno, Clara Author NERC EDS UK Polar Data Centre Point of contact
- Maintenance and update frequency
- As needed
- Maintenance note
- Completed
- Theme
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POC
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carbon flux
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faecal pellets
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krill
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sediment trap
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- Place
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northern Scotia Sea Southern Ocean
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GEMET - INSPIRE themes, version 1.0
- Access constraints
- Other restrictions
- Other constraints
- no limitations to public access
- Access constraints
- Other restrictions
- Other constraints
- no limitations
- Use constraints
- License
- Other constraints
- Open Government Licence v3.0
- Use constraints
- Other restrictions
- Other constraints
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This data is governed by the NERC Data Policy: https://www.ukri.org/who-we-are/nerc/our-policies-and-standards/nerc-data-policy/
- Use constraints
- Other restrictions
- Other constraints
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This data is governed by the NERC data policy and supplied under Open Government Licence v.3
- Unique resource identifier
- url
- Codespace
-
url
- Association Type
- Larger work citation
- Unique resource identifier
- url
- Codespace
-
url
- Association Type
- Cross reference
- Spatial representation type
- Text, table
- Language
- English
- Character set
- UTF8
- Topic category
-
- Biota
- Environment
- Oceans
)
- Begin date
- 2018-01-01
- End date
- 2018-12-31
- Supplemental Information
-
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.
- Title
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European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
- Date (Publication)
- 2008-11-12
- Cited responsible party
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Organisation name Individual name Electronic mail address Role European Petroleum Survey Group
Publisher
- Unique resource identifier
- urn:ogc:def:crs:EPSG::3031
- Version
-
6.18.3
Distributor
- Distributor contact
-
Organisation name Individual name Electronic mail address Role NERC EDS UK Polar Data Centre Distributor
- Distributor format
-
Name Version text/plain text/csv
- Units of distribution
-
bytes
- Transfer size
- 5222
- OnLine resource
-
Protocol Linkage Name WWW:LINK-1.0-http--link
https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=60f9b354-2cbf-4d4d-84f7-13c9224f82d4 Get Data
- Units of distribution
-
bytes
- Transfer size
- 5222
- OnLine resource
-
Protocol Linkage Name WWW:LINK-1.0-http--link
https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=60f9b354-2cbf-4d4d-84f7-13c9224f82d4 Get Data
- Hierarchy level
- Dataset
- Statement
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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.
Metadata
- File identifier
- 60f9b354-2cbf-4d4d-84f7-13c9224f82d4 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Hierarchy level name
-
dataset
- Date stamp
- 2020-10-21
- Metadata standard name
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ISO 19115 Geographic Information - Metadata
- Metadata standard version
-
ISO 19115:2003(E)
- Metadata author
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Organisation name Individual name Electronic mail address Role NERC EDS UK Polar Data Centre Point of contact
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