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Metadata: NRW Carmarthen Bay and Estuaries SAC sediments survey 2023
Abstract:
In Carmarthen Bay and Estuaries SAC the Annex I intertidal habitat features include: Mudflats and sandflats not covered by seawater at low tide. A series of 23 sediment monitoring locations, distributed around the SAC to represent different areas and habitats, were established between 2005 and 2008. Most locations were initially defined as transects (a line from upper to lower shore) but many have been redefined as clusters of stations (areas of shore). Between 1 and 6 sampling stations have been established (with fixed positions) within each of those locations, though some have required repositioning due to channel movements. These stations have been monitored using a combination of in-situ recording and sediment core sampling with laboratory analysis of infaunal composition and sediment granulometry. Some stations (those at Crofty and Llansteffan) are surveyed and sampled annually, others at intervals of 2 or more years. This description refered to data collected in 2023.
Data holder:
Natural Resources Wales (NRW)
Click on the red button for resource contact details:
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| Other details | ||
| Internal code | Internally assigned metadata identifier | 8883 |
| 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. | NRW Carmarthen Bay and Estuaries SAC sediments survey 2023 |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | 2023 NRW Carmarthen Bay and Estuaries SAC sediment monitoring [43cadc21-0e19-4f03-a658-6ca40d5b310b] |
| 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. | NRW_DS161416 |
| Resource Identifier | This is the code assigned by the data owner. | 4f4c4942-4343-5764-6473-313631343136 |
| 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 | 2023-10-16 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2023-10-17 |
| 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'. | notPlanned |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | In Carmarthen Bay and Estuaries SAC the Annex I intertidal habitat features include: Mudflats and sandflats not covered by seawater at low tide. A series of 23 sediment monitoring locations, distributed around the SAC to represent different areas and habitats, were established between 2005 and 2008. Most locations were initially defined as transects (a line from upper to lower shore) but many have been redefined as clusters of stations (areas of shore). Between 1 and 6 sampling stations have been established (with fixed positions) within each of those locations, though some have required repositioning due to channel movements. These stations have been monitored using a combination of in-situ recording and sediment core sampling with laboratory analysis of infaunal composition and sediment granulometry. Some stations (those at Crofty and Llansteffan) are surveyed and sampled annually, others at intervals of 2 or more years. This description refered to data collected in 2023. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Two survey methodologies are undertaken : 1) In-situ survey of conspicuous epibiota and their abundance (various data types depending on species) visible on the sediment surface (area within 5m radius from GPS located station coordinates), plus in-situ characterisation of sediment habitat. Photographs taken of the habitat and representative core samples at each station. 2) Five x 0.01m2 core samples sieved and preserved in formalin for infaunal analysis, plus a sample of sediment taken for granulometry analysis. Samples (macrofauna and sediments) analysed by Hull Marine Lab. Data collated and used to assign biotopes to each station. The pupose of this data collection is to support long-term monitoring to maintain a baseline of data that can be used for regular assessment of condition of the SAC, to study any changes over time, and to understand the scale of natural temporal fluctuations in those communities and species. All surveys completed by professional and experienced marine field surveyors. Data quality and confidence considered moderate to high. |
| Additional information | This describes relevant references to the data e.g. reports, articles, websites plus other useful information not captured elsewhere. | The data will be available through MEDIN Data Archive Centre and the NBN Atlas once automatic flow from MRO Is established |
| Related keywords | ||
| Keyword | 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 | Macroalgae and seagrass taxonomy-related counts | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Zoobenthos generic abundance | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Seabed photography | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Habitat characterisation | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Intertidal monitoring | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Infauna | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | core sampling | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | intertidal | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Carmarthen Bay and Estuaries SAC | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 51.8723 |
| East | The eastern-most limit of the data resource in decimal degrees | -4.0652 |
| South | The southern-most limit of the data resource in decimal degrees | 51.5182 |
| West | The western-most limit of the data resource in decimal degrees | -4.7166 |
| Regional sea | http://vocab.nerc.ac.uk/collection/C19/current/UKMDN012/ | |
| 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 | Natural Resources Wales | |
| Delivery point | Maes y Ffynnon | |
| Postal code | LL57 2DW | |
| City | Bangor | |
| Country | Wales | |
| opendata@cyfoethnaturiolcymru.gov.uk | ||
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | Natural Resources Wales (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Natural Resources Wales (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | Natural Resources Wales (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| 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 | Natural Resources Wales (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| 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 | 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`. | There are no access restrictions on this data. NRW may release, publish or disseminate it freely. |
| noLimitations | ||
| 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. | © CNC/NRW Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose. |
| 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. | Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. | |
| https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ | ||
| Available data formats | ||
| Data format | Format in which digital data can be provided for transfer | Database (MRO version 2.07.03) |
| Format in which digital data can be provided for transfer | Documents | |
| Format in which digital data can be provided for transfer | Delimited | |
| Format in which digital data can be provided for transfer | Geographic Information System | |
| Format in which digital data can be provided for transfer | Image | |
| 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. | 2025-10-11 |
| Date of creation | The date that the resource was created. | 2024-08-30 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-19 |
| Metadata date | The date when the content of this metadata record was last updated. | 2026-03-05 |
| 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 |
| Metadata parent | NRW_DS109834 | |