BGS Hosted Metadata
224Ra and macronutrient flux dataset from incubations of UK marine sediments containing selected benthic macrofauna. University of Southampton, UK (2022)
This dataset consists of measurements of 224Ra and macronutrients in core top water, porewaters and sediments, as well as calculated 224Ra and macronutrient fluxes (via 224Ra/228Th disequilibrium) from benthic incubations of replicate mesocosms containing selected benthic macrofauna. The experiments were conducted at the Biodiversity Ecosystem Futures Facility (BEFF lab) at the National Oceanography Centre Southampton during 2022. Sediment was collected from Rame Mud, Plymouth, and benthic organisms were collected from Rame Mud and from Loch Linhe, Scotland. For each incubation, homogenised, sieved (500 µm) sediment was added to a mesocosm to 10 cm depth, overlain by approximately 15 cm (approx. 1.3 L) seawater (0.45 µm filtered, UV sterilised, salinity 33), and left to settle for 24 hours before conducting a full water exchange. After water exchange, 1 individual of either Paraleptopentacta elongata , Edwardsia claparedii, Turritellinella tricarinata, or Amphiura chiajei was weighed and morphological measurements were taken before being added to the mesocosm. 3 replicates containing 1 individual were run for each species, in addition to 3 replicate control mesocosms containing no macrofauna. All mesocosms were continually aerated and maintained in a temperature-controlled water bath for 10 days under a 12:12h on/off light cycle. On days 4 and 8, 2.5ml of a mixed Phaeodactylum tricornutum: Tetraselmis suecica phytoplankton culture was added to all mesocosms. For a subset of mesocosms (mesocosms 14 and 15 ), daily water column nutrient samples (10 ml, 0.2 µm filtered) were taken ~5 cm below the water surface and frozen at -20°C for subsequent analysis. Experiments 1 & 2 were set up in the same manner, except that in experiment 2 only one species was included, but at higher replication (8 replicate mesocosms containing 1 individual each of E. claparedii + 1 control mesocosm). Water samples for macronutrient concentrations were analysed using a QuAAtro 39 autoanalyser (Seal Analytical) and samples for Ra activity were analysed using a Radium Delayed Coincidence Counter (RaDeCC) system.The work was conducted to quantify the influence of different species and individuals of benthic macrofauna on benthic flux, using 224Ra as a naturally occurring tracer of sediment-seawater exchange. For further information, please see the associated research paper doi: 10.1002/lno.70033
Simple
- Alternate title
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British Oceanographic Data Centre record 1048_BEFF_benthic_mesocosms_2022
- Date (Publication)
- 2025-06-06
- Date (Creation)
- 2025-04-04
- Date (Revision)
- 2025-04-04
- Citation identifier
- http://www.bodc.ac.uk/ / EDMED7402
- Point of contact
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Organisation name Individual name Electronic mail address Role University of Southampton School of Ocean and Earth Science
Unknown
Owner University of Southampton School of Ocean and Earth Science
Unknown
Originator British Oceanographic Data Centre
Custodian British Oceanographic Data Centre
Distributor
- Maintenance and update frequency
- As needed
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MEDIN metadata record availability
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GEMET - INSPIRE themes, version 1.0
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SeaDataNet Parameter Discovery Vocabulary
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- Other fluxes between the bed and the water column
- Nutrient fluxes between the bed and the water column
- Sedimentary structure
- Stable isotopes in sediment pore waters
- Sediment water content, porosity and surface area
- Stable isotopes in sediment
- Nutrient concentrations in sediment pore waters
- Zoobenthos taxonomy-related wet weight biomass per unit area of the bed
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SeaVoX Vertical Co-ordinate Coverages
- Access constraints
- Other restrictions
- Other constraints
- No limitations apply
- Other constraints
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Data are freely available to all following agreement to the terms and conditions of a Data Licence
- Use constraints
- Other restrictions
- Other constraints
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Usage restrictions are specified in the terms of the licence
- Spatial representation type
- Text, table
- Language
- English
- Topic category
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- Geoscientific information
- Biota
- Oceans
))
- Geographic identifier
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Inner Seas off the West Coast of Scotland
SeaVoX water bodies 2024-12-11 revision
- Geographic identifier
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English Channel
SeaVoX water bodies 2024-12-11 revision
- Begin date
- 2022-01-26
- End date
- 2022-08-12
- Unique resource identifier
- urn:ogc:def:crs:EPSG::4326
- Codespace
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OGP
- OnLine resource
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Protocol Linkage Name https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/31f436d8-138c-c949-e063-7086abc09f40/ Published dataset - doi:10.5285/31f436d8-138c-c949-e063-7086abc09f40
- Hierarchy level
- Dataset
Conformance result
- Title
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COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Date (Publication)
- 2010-12-08
- Explanation
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BODC protocols are based on the Open Archival Information System (OAIS) model enabling BODC to iterate towards compliance with the on-going evolution and development of community requirements including FAIR (Findable,Accessible,Interoperable,Reusable), TRUST (Transparency, Responsibility, User community, Sustainability, Technology) and CARE (Collective Benefit, Authority to Control, Responsibility, Ethics). Data managers quality assure submissions and assemble the metadata necessary for curation. Submissions (as received) are placed in a long-term accession and stored in triplicate across multiple sites. Appropriate data are transferred into a standard internal format with source variable names mapped to controlled vocabularies, documentation assembled, and metadata loaded into BODC databases. Access to these data is through direct request, the BODC website and through partner repositories such as SeaDataNet. Access control is attained by assigning a data policy to each set of data and this policy is used to administer access when data are requested. Discovery metadata is aligned with EU INSPIRE (through MEDIN) and SeaDataNet community standards. Data are converted to open community formats including Ocean Data View ASCII and SeaDataNet NetCDF, with data described using terms from the NERC vocabulary server. BODC submission agreements are documented on the BODC website and customer service is assured with a dedicated requests team that serve data following local regulations including General Data Protection Regulation (GDPR) 2018 and Environmental Information Regulations (EIR) 2004.
- Pass
- Yes
- Statement
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This dataset was created by the organisations with the "originator" role in this metadata record following their in-house data processing and quality control procedures. The data were then provided to the British Oceanographic Data Centre (BODC) for long-term archive and data publication in the BODC Published Data Library.Instrument(s) used to collect data: autoanalysers; spectrophotometers; liquid scintillation counters.
Metadata
- File identifier
- 44911a04618c5cf9843e846111db68bc XML
- Metadata language
- English
- Hierarchy level
- Dataset
- Date stamp
- 2025-06-06T08:18:23
- Metadata standard name
- MEDIN
- Metadata standard version
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3.1.2
- Metadata author
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Organisation name Individual name Electronic mail address Role British Oceanographic Data Centre
Polly Hadziabdic
Point of contact
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