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Metadata: Surveys of Potential Oystercatcher Prey, Pembrey Sands (2009)
Abstract:
The Burry Inlet Special Protection Area (SPA) supports nationally and internationally important populations of wildfowl and waders. Countryside Council for Wales (CCW) are studying the food requirements of oystercatcher and knot, to develop monitoring targets and to assess the implications of shellfish fisheries on the bird populations. As part of that study, surveys of the cockle and mussel stocks in the Burry Inlet have been carried out every autumn since 2004, using a standard methodology. Significant populations of oystercatcher also feed in the Three Rivers and along Pembrey Sands and it is known that they are part of the same population that feed in the Burry Inlet SPA, but the information is limited. Data from the British Trust for Ornithology (BTO) on oystercatcher distribution along the Pembrey coast showed that they concentrate in the central section of the Sands and confirmed that they are feeding at low tide. It is known from previous survey work that the sediment fauna found along the Pembrey coast are likely to include a variety of shellfish (but not cockles and mussels), however data is limited. The purpose of this data capture was to provide data on the abundance and distribution of the potential prey species for the oystercatcher along the Pembrey Sands due to limited data availability. This data aimed to determine the potential prey of the oystercatcher in Pembrey Sands, examining the abundance and distribution of the sediment fauna. Previous findings showed that high numbers of the main prey species of the oyster catchers (cockles and mussels) were not found in the area.
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 | 8808 |
| 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. | Surveys of Potential Oystercatcher Prey, Pembrey Sands (2009) |
| 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_DS115123 |
| Resource Identifier | This is the code assigned by the data owner. | 4f4c4942-4343-5764-6473-313135313233 |
| 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 | 2009-09-01 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2009-09-30 |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | 250 |
| Spatial resolution unit | This describes the unit of spatial resolution which for distance must be metres. | urn:ogc:def:uom:EPSG::9001 |
| 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 Burry Inlet Special Protection Area (SPA) supports nationally and internationally important populations of wildfowl and waders. Countryside Council for Wales (CCW) are studying the food requirements of oystercatcher and knot, to develop monitoring targets and to assess the implications of shellfish fisheries on the bird populations. As part of that study, surveys of the cockle and mussel stocks in the Burry Inlet have been carried out every autumn since 2004, using a standard methodology. Significant populations of oystercatcher also feed in the Three Rivers and along Pembrey Sands and it is known that they are part of the same population that feed in the Burry Inlet SPA, but the information is limited. Data from the British Trust for Ornithology (BTO) on oystercatcher distribution along the Pembrey coast showed that they concentrate in the central section of the Sands and confirmed that they are feeding at low tide. It is known from previous survey work that the sediment fauna found along the Pembrey coast are likely to include a variety of shellfish (but not cockles and mussels), however data is limited. The purpose of this data capture was to provide data on the abundance and distribution of the potential prey species for the oystercatcher along the Pembrey Sands due to limited data availability. This data aimed to determine the potential prey of the oystercatcher in Pembrey Sands, examining the abundance and distribution of the sediment fauna. Previous findings showed that high numbers of the main prey species of the oyster catchers (cockles and mussels) were not found in the area. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | The methodology for Pembrey Sands was adapted from that used for the cockle surveys in the Burry Inlet. A total of 97 stations with 250 m spacing were sampled from a grid of 161 stations, using a 0.1m2 quadrat / 2 mm mesh sieve. All sampled stations extended from the mid tide level to below the likely low tide level in Pembrey Sands. Bivalves that were retained in the sieve were identified, counted and their shell lengths were measured with vernier callipers. Additionally counts of polychaetes >2 cm body length were recorded, and tube dwelling and tubeless polychaetes were distinguished. Observations made by four surveyors (experience unknown). The methodology used has been applied to surveys in the Bury Inlet since 2004 and is astandard methodology (Moore, 2009). Further information can be found in the CCW report 'Surveys of potential oystercatcher prey Pembrey Sands 2009'. |
| 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 | thin tellin | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | haematopus ostralegus | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | oystercatchers | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | shellfish | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | bird food | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | bivalve molluscs | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | lamellibranchia (pelecypoda) (bivalvia) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | angulus tenuis | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Pembrey | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | birds of prey (raptors) (see also specific species) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Zoobenthos taxonomy-related counts | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 51.7077 |
| East | The eastern-most limit of the data resource in decimal degrees | -4.2544 |
| South | The southern-most limit of the data resource in decimal degrees | 51.6527 |
| West | The western-most limit of the data resource in decimal degrees | -4.3926 |
| Regional sea | benthic boundary layer | |
| SIR GAERFYRDDIN - CARMARTHENSHIRE | ||
| 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 | Coastal Assessment Liaison and Monitoring (CALM) | |
| Delivery point | Ti Cara, Point Lane, Cosheston, Pembrokeshire, SA72 4UN, Wales | |
| jon@ticara.co.uk | ||
| URL | <!--No website --> | |
| 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 | |
| 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 to this data. NRW may release, publish or disseminate it freely. |
| 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 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. |
| 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. | 2009-10-26 |
| 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 |
| Metadata parent | NRW_DS108873 | |