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Metadata: Severn Estuary Special Area of Conservation (SAC) and Special Protection Area (SPA): Intertidal Mudflats and Sandflats Condition Assessment 2012
Abstract:
The Severn Estuary is the largest example of a coastal plain estuary in the United Kingdom. It has been designated as a Special Area of Conservation (SAC) under the EU Habitats Directive, a Special Protection Area (SPA) under the Birds Directive and as a Ramsar site under the Convention on Wetlands of International Importance. The primary focus of this study relates to monitoring the intertidal mudflats and sandflats feature of the Severn Estuary SAC by assessing the relevant attributes for the purpose of condition assessment. However, monitoring of prey availability within the Severn Estuary SPA was also a secondary objective. The survey was undertaken in three blocks between the 13th October and 14th November 2012.
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 | 8833 |
| 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. | Severn Estuary Special Area of Conservation (SAC) and Special Protection Area (SPA): Intertidal Mudflats and Sandflats Condition Assessment 2012 |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | MRNE013700000005 - Severn Estuary SAC Sandflat and Mudflat Condition Assessment 2012, Severn Estuary SAC Sandflat and Mudflat Condition Assessment 2012 |
| 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_DS115547 |
| Resource Identifier | This is the code assigned by the data owner. | 4f4c4942-4343-5764-6473-313135353437 |
| 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 | 2012-10-13 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2012-11-14 |
| 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. | The Severn Estuary is the largest example of a coastal plain estuary in the United Kingdom. It has been designated as a Special Area of Conservation (SAC) under the EU Habitats Directive, a Special Protection Area (SPA) under the Birds Directive and as a Ramsar site under the Convention on Wetlands of International Importance. The primary focus of this study relates to monitoring the intertidal mudflats and sandflats feature of the Severn Estuary SAC by assessing the relevant attributes for the purpose of condition assessment. However, monitoring of prey availability within the Severn Estuary SPA was also a secondary objective. The survey was undertaken in three blocks between the 13th October and 14th November 2012. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | The methods employed within this study were largely limited to Phase II sampling that was based on Phase I biotope maps from previous studies. However, if any obviously incorrect biotope boundaries were encountered or if any notable habitats or species were observed during the course of the surveys, then records were appropriately amended. Anthropogenic influences and negative indicators were also recorded where encountered. A total of 9 littoral mudflat and sandflat sediment biotopes were identified throughout the Severn Estuary SAC and SPA during the course of the study, and their subsequent extent and distribution was mapped using GIS. At each station; - five replicate 0.01m2 cores were taken to a depth of 15 cm following ISI, Environment Agency and JNCC guidelines. A photograph of the sediment at the station and the general area was also taken. Macrofauna samples were delivered to APEM Ltd for analysis. - the depth of the Redox Potential Discontinuity (RPD) layer was determined at each station and a second core taken for sediment granulometry. The sediment samples were delivered to the National Laboratory Service (NLS) at Starcross for PSA. Previous Phase 1 biotope surveys were carried out on behalf of Natural England in 2005. Phase I surveys were also carried out on the Welsh shores between 1996 and 2005 on behalf of CCW. The specific methods used during these surveys are unknown as only the GIS map outputs are available. |
| Additional information | This describes relevant references to the data e.g. reports, articles, websites plus other useful information not captured elsewhere. | Natural England, CCW and Environment Agency Wales (now NRW) jointly funded a joint sediment survey of the Severn estuary in 2012. The work was done as part of a framework agreement. CCW (now NRW) are free to supply Welsh related data. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Habitats and biotopes |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | aquatic fauna | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | aquatic fauna | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | sediment infauna | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | subtidal sediments | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | sediment epifauna | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | biota | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Sediment grain size parameters | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 51.78959992 |
| East | The eastern-most limit of the data resource in decimal degrees | -2.37004843 |
| South | The southern-most limit of the data resource in decimal degrees | 51.15146662 |
| West | The western-most limit of the data resource in decimal degrees | -3.17360183 |
| Regional sea | benthic boundary layer | |
| Wales (WLS) | ||
| 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 (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| 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 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 | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | APEM Ltd | |
| Delivery point | APEM Remote Sensing, Riverview, A17 Embankement Buisness Park, Heaton Mersey, Stockport, SK4 3GN | |
| manchester@apemltd.co.uk | ||
| URL | http://www.apemltd.co.uk | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | National Laboratory Service | |
| Delivery point | Environment Agency, Starcross Laboratory, Staplake Mount, Starcross, Exeter, Devon, EX6 8FD | |
| sarah.tancock@environment-agency.gov.uk | ||
| URL | http://natlabs.co.uk/ | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Ecospan Environmental Ltd | |
| Delivery point | Unit 8 Strashleigh View, Lee Mill, Devon, PL21 9GS | |
| info@ecospan.co.uk | ||
| URL | www.ecospan.co.uk | |
| 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 owner is the person or organisation that owns the resource. | owner |
| Organisation name | Natural England | |
| Delivery point | Foundry House, 3 Millsands, Riverside Exchange, Sheffield, S3 8NH | |
| enquiries@naturalengland.org.uk | ||
| URL | http://www.naturalengland.org.uk/ | |
| 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`. | The following data is considered OS derived data and is therefore jointly owned by NRW and the Ordnance Survey. NRW may release, publish or disseminate this data freely; providing recipients are made aware of use restrictions (See general use restrictions). |
| no limitations | ||
| 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 and © Crown copyright 2012. All rights reserved. Natural Resources Wales, AC0000849444. Third parties seeking to re-use this data require a Licence issued by NRW. It allows re-use, reproduction and dissemination in any format or medium but only for non-commercial purposes, according to the terms and conditions of the Licence. Those seeking commercial re-use require a commercial licence available from the OS. |
| Available data formats | ||
| Data format | Format in which digital data can be provided for transfer | Documents |
| 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. | 2014-12-31 |
| 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. | 2026-03-03 |
| 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 |