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Metadata: 224Ra and macronutrient flux dataset from incubations of UK marine sediments containing selected benthic macrofauna. University of Southampton, UK (2022)
Abstract:
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
Data holder:
British Oceanographic Data Centre
| Other details | ||
| Internal code | Internally assigned metadata identifier | 7742 |
| Title | The title is used to provide a brief and precise description of the dataset such as 'Date', 'Originating organisation/programme', 'Location' and 'Type of survey'. All acronyms and abbreviations should be reproduced in full. | 224Ra and macronutrient flux dataset from incubations of UK marine sediments containing selected benthic macrofauna. University of Southampton, UK (2022) |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | British Oceanographic Data Centre record 1048_BEFF_benthic_mesocosms_2022 |
| File Identifier | The File Identifier is a code, preferably a GUID, that is globally unique and remains with the same metadata record even if the record is edited or transferred between portals or tools. | 44911a04618c5cf9843e846111db68bc |
| Resource Identifier | This is the code assigned by the data owner. | EDMED7402 |
| Resource type | The resource type will likely be a dataset but could also be a series (collection of datasets with a common specification) or a service. | dataset |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 2022-01-26 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2022-08-12 |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | inapplicable |
| Frequency of updates | This describes the frequency with which the resource is modified or updated i.e. a monitoring programme that samples once per year has a frequency that is described as 'annually'. | asNeeded |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | 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 |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | 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. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Natural Environment Research Council Designated Data Centres |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | data.gov.uk | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Species distribution | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Hydrography | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Geology | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Soil | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Oceanographic geographical features | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Other fluxes between the bed and the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Nutrient fluxes between the bed and the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Sedimentary structure | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Stable isotopes in sediment pore waters | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Sediment water content, porosity and surface area | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Stable isotopes in sediment | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Nutrient concentrations in sediment pore waters | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Zoobenthos taxonomy-related wet weight biomass per unit area of the bed | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | unknown | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 56.4833 |
| East | The eastern-most limit of the data resource in decimal degrees | -4.1333 |
| South | The southern-most limit of the data resource in decimal degrees | 50.3 |
| West | The western-most limit of the data resource in decimal degrees | -5.5 |
| Regional sea | Inner Seas off the West Coast of Scotland | |
| Responsible organisations | ||
| Role | The point of contact is person or organisation with responsibility for the creation and maintenance of the metadata for the resource. | pointOfContact |
| Organisation name | British Oceanographic Data Centre | |
| Individual name | Polly Hadziabdic | |
| Position name | Head of Enquiries | |
| Delivery point | Joseph Proudman Building, 6 Brownlow Street | |
| Postal code | L3 5DA | |
| City | Liverpool | |
| Administrative area | Merseyside | |
| Country | United Kingdom | |
| enquiries@bodc.ac.uk | ||
| URL | https://www.bodc.ac.uk/ | |
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | University of Southampton School of Ocean and Earth Science | |
| Individual name | Unknown | |
| Position name | Unknown | |
| Phone | +44 (0)23 8059 2011 | |
| Delivery point | National Oceanography Centre, European Way | |
| Postal code | SO14 3ZH | |
| City | Southampton | |
| Administrative area | Hampshire | |
| Country | United Kingdom | |
| soes@noc.soton.ac.uk | ||
| URL | http://www.soes.soton.ac.uk/ | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | University of Southampton School of Ocean and Earth Science | |
| Individual name | Unknown | |
| Position name | Unknown | |
| Phone | +44 (0)23 8059 2011 | |
| Delivery point | National Oceanography Centre, European Way | |
| Postal code | SO14 3ZH | |
| City | Southampton | |
| Administrative area | Hampshire | |
| Country | United Kingdom | |
| soes@noc.soton.ac.uk | ||
| URL | http://www.soes.soton.ac.uk/ | |
| Role | The custodian is the person or organisation that accepts responsibility for the resource and ensures appropriate care and maintenance. If a dataset has been lodged with a Data Archive Centre for maintenance then this organisation is be entered here. | custodian |
| Organisation name | British Oceanographic Data Centre | |
| Position name | Director | |
| Delivery point | Joseph Proudman Building, 6 Brownlow Street | |
| Postal code | L3 5DA | |
| City | Liverpool | |
| Administrative area | Merseyside | |
| Country | United Kingdom | |
| enquiries@bodc.ac.uk | ||
| URL | https://www.bodc.ac.uk/ | |
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | British Oceanographic Data Centre | |
| Position name | Director | |
| Delivery point | Joseph Proudman Building, 6 Brownlow Street | |
| Postal code | L3 5DA | |
| City | Liverpool | |
| Administrative area | Merseyside | |
| Country | United Kingdom | |
| enquiries@bodc.ac.uk | ||
| URL | https://www.bodc.ac.uk/ | |
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/31f436d8-138c-c949-e063-7086abc09f40/ |
| Locator name | Name of the web resource | Published dataset - doi:10.5285/31f436d8-138c-c949-e063-7086abc09f40 |
| Locator function | Code that describes the function of the resource. ISO function code chosen from ISO 19115-1 Codelist | download |
| Dataset constraints | ||
| 20.1 Limitations on Public Access - Access constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 20.2 Limitations on Public Access - Other constraints | No limitations apply | |
| This states any limitations on access to the data. Multiple occurences are allowed here. One entry shall be from the INSPIRE Metadata registry and the other free text should be part of the resource `Have specific limitations`. | Data are freely available to all following agreement to the terms and conditions of a Data Licence | |
| 21.1 Conditions for Access and Use - Use constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 21.2 Conditions for Access and Use - Other constraints | This states any constraints on use of the data. Multiple conditions can be recorded for different parts of the data resource. If no conditions apply, then `No condtions apply` is recorded. This uses free text. | Usage restrictions are specified in the terms of the licence |
| Available data formats | ||
| Data format | Format in which digital data can be provided for transfer | Binary |
| Format in which digital data can be provided for transfer | Delimited | |
| Version info | ||
| Date of publication | The publication date of the resource or if previously unpublished the date that the resource was made publicly available via the MEDIN network. | 2025-06-06 |
| Date of last revision | The most recent date that the resource was revised. | 2025-04-04 |
| Date of creation | The date that the resource was created. | 2025-04-04 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-12 |
| Metadata date | The date when the content of this metadata record was last updated. | 2025-06-06 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 3.1.2 |