© OpenStreetMap contributors
The Burry Inlet Special Protection Area (SPA) supports nationally and internationally important populations of wildfowl and waders. The former Countryside Council for Wales (CCW), now part of Natural Resources Wales (NRW), 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. This data was captured to provide data on abundance and distribution of potential oystercatcher prey on Pembrey Sands. The data collected and its results will primarily be used for site monitoring and also for casework. 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 populat ions 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. 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. Sediment fauna that are found along the Pembrey coast include a variety of shellfish (but not cockles and mussels) and a number of large bodied polychaete worms that may be potential prey for oystercatcher. A survey of potential oystercatcher prey along the Pembrey Sands was carried out in late September 2009. It showed high densities of the bivalves Donax vittatus and Angulus vittatus and the polychaetes Lanice conchilega and Owenia fusiformis, distributed across the lower and middle shore. A repeat survey was commissioned by CCW in autumn 2011. In the future this data may be combined with data gathered on bird foraging behaviour, together with site specific data on bird numbers and used in an individual behaviour based model to predict the food requirements of a bird population.
Natural Resources Wales (NRW)
There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
Other details | ||
Internal code | Internally assigned metadata identifier | 2021 |
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 (2011) |
Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | Arolygon o ysglyfaeth posibl piod mor, Traeth Pen-bre, 2011 |
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. | 4f4c4942-4343-5764-6473-313134373636 |
Resource Identifier | This is the code assigned by the data owner. | 114766 |
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 | 2011-09-27 |
End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2011-09-28 |
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. | http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/uom/gmxUom.xml#m |
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. The former Countryside Council for Wales (CCW), now part of Natural Resources Wales (NRW), 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. This data was captured to provide data on abundance and distribution of potential oystercatcher prey on Pembrey Sands. The data collected and its results will primarily be used for site monitoring and also for casework. 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 populat ions 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. 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. Sediment fauna that are found along the Pembrey coast include a variety of shellfish (but not cockles and mussels) and a number of large bodied polychaete worms that may be potential prey for oystercatcher. A survey of potential oystercatcher prey along the Pembrey Sands was carried out in late September 2009. It showed high densities of the bivalves Donax vittatus and Angulus vittatus and the polychaetes Lanice conchilega and Owenia fusiformis, distributed across the lower and middle shore. A repeat survey was commissioned by CCW in autumn 2011. In the future this data may be combined with data gathered on bird foraging behaviour, together with site specific data on bird numbers and used in an individual behaviour based model to predict the food requirements of a bird population. |
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. 94 stations with 250 m spacing were sampled in 2011 using a 0.1m2 quadrat / 2mm mesh sieve. Bivalves and polychaetes retained in the sieve were measured (length) and counted; enabling the production of distribution / density maps and estimates of the total population for each species. All data was collected by staff with a background in Biological Sciences. All data entry was subject to auto-validation and conditional formatting. Data was also checked by the project manager for errors. The data was put through a rigorous series of verification procedures to ensure that there were no inconsistencies between the field records, the shellfish measurements and th e sub-sample records. |
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 | Zoobenthos taxonomy-related counts | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network | |
Geographical coverage | ||
North | The northern-most limit of the data resource in decimal degrees | 51.70728326 |
East | The eastern-most limit of the data resource in decimal degrees | -4.2592021 |
South | The southern-most limit of the data resource in decimal degrees | 51.65143442 |
West | The western-most limit of the data resource in decimal degrees | -4.38254183 |
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) | |
Phone | 0300 065 3000 | |
Delivery point | Maes-y-Ffynnon | |
Postal code | LL57 2DW | |
Role | The distributor is the person or organisation that distributes the resource. | distributor |
Organisation name | Natural Resources Wales (NRW) | |
Phone | 0300 065 3000 | |
Delivery point | Maes-y-Ffynnon | |
Postal code | LL57 2DW | |
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) | |
Phone | 0300 065 3000 | |
Delivery point | Maes-y-Ffynnon | |
Postal code | LL57 2DW | |
Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
Organisation name | Coastal Assessment Liaison and Monitoring (CALM) | |
Phone | 01646 687946 | |
Delivery point | Ti Cara | |
Postal code | SA72 4UN | |
Dataset constraints | ||
20 Limitations on Public Access - Access constraints | ISO restriction code chosen from ISO 19115-1 Codelist | otherRestrictions |
20 Limitations on Public Access – Other constraints | Any restriction on the use of the resource such as the need to agree to certain licence conditions. | There are no access restrictions to this data. NRW may release, publish or disseminate it freely. |
21 Conditions for Access and Use - Use limitation | Any restrictions imposed on accessing the resource such as the need to agree to certain licence conditions. | © 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. | 2011-04-30 |
Date of last revision | The most recent date that the resource was revised. | 2011-09-28 |
Metadata date | The date when the content of this metadata record was last updated. | 2018-07-03 |
Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN Discovery Metadata Standard |
Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | Version 2.3.8 |
© OpenStreetMap contributors