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Metadata: Common Scoter Survey (Melanitta nigra) in Liverpool Bay (2000-2001)
Abstract:
The Common Scoter is strongly migratory and often travels considerable distances over land making brief stop-overs on inland waters. It is currently listed under the Birds Directive (Annex 2) Convention on Migratory Species (Bonn Convention Appendix 2) and is featured on the UK red-listed bird of conservation concern (for the breeding population) and a UK Biodiversity Action Plan (BAP) Priority Species for conservation and is a Schedule 1 species under the Wildlife and Countryside Act 1981. The majority of wintering common scoter recorded around the Welsh coast around Carmarthen Bay, North Cardigan Bay and the North Wales coast, which in combination are thought to hold 30-36,000 birds. A further 10 sites regularly support 1000 or more birds. These are no known major concentrations away from these 13 sites, although this may be a consequence of the lack of appropriate survey. Large numbers of birds are recorded at several sites in April and May and there are significant post-breeding gatherings at three sites, including Carmarthen Bay, from August onwards. Casual observations suggest that these sites are not moulting grounds for the majority of birds. However there maybe as yet undetected moulting sites further offshore, as is the case in Denmark. The purpose of this data capture was to record the numbers and distribution of common scoter in the Liverpool Bay; to determine the accuracy of the two survey methods (aerial and land-based) and the correlation between the two; and to provide recommendations on future monitoring of common scoter in Liverpool bay.
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 | 8738 |
| 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. | Common Scoter Survey (Melanitta nigra) in Liverpool Bay (2000-2001) |
| 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_DS111800 |
| Resource Identifier | This is the code assigned by the data owner. | 4f4c4942-4343-5764-6473-313131383030 |
| 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 | 2000-11-30 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2001-02-28 |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | 1000 |
| 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 Common Scoter is strongly migratory and often travels considerable distances over land making brief stop-overs on inland waters. It is currently listed under the Birds Directive (Annex 2) Convention on Migratory Species (Bonn Convention Appendix 2) and is featured on the UK red-listed bird of conservation concern (for the breeding population) and a UK Biodiversity Action Plan (BAP) Priority Species for conservation and is a Schedule 1 species under the Wildlife and Countryside Act 1981. The majority of wintering common scoter recorded around the Welsh coast around Carmarthen Bay, North Cardigan Bay and the North Wales coast, which in combination are thought to hold 30-36,000 birds. A further 10 sites regularly support 1000 or more birds. These are no known major concentrations away from these 13 sites, although this may be a consequence of the lack of appropriate survey. Large numbers of birds are recorded at several sites in April and May and there are significant post-breeding gatherings at three sites, including Carmarthen Bay, from August onwards. Casual observations suggest that these sites are not moulting grounds for the majority of birds. However there maybe as yet undetected moulting sites further offshore, as is the case in Denmark. The purpose of this data capture was to record the numbers and distribution of common scoter in the Liverpool Bay; to determine the accuracy of the two survey methods (aerial and land-based) and the correlation between the two; and to provide recommendations on future monitoring of common scoter in Liverpool bay. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Four aerial surveys were completed, monthly between November 2000 and February 2001. Synchronous land-based counts were made on some dates, although complete coverage from all planned observation points was never achieved. Aerial surveys covered between 702-1142 km2 whilst land-based observations were over an estimated sea area of between 60-120 km2 |
| 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 | aerial surveys | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | melanitta nigra | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Liverpool Bay | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | common scoter (black scoter) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Bird taxonomy-related abundance per unit area of surface | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 53.95058018 |
| East | The eastern-most limit of the data resource in decimal degrees | -2.97727468 |
| South | The southern-most limit of the data resource in decimal degrees | 53.2832401 |
| West | The western-most limit of the data resource in decimal degrees | -4.12757249 |
| Regional sea | England and Wales (EAW) | |
| SIR YNYS MON - ISLE OF ANGLESEY | ||
| Caernarvonshire (49) | ||
| SIR DDINBYCH - DENBIGHSHIRE | ||
| SIR Y FFLINT - FLINTSHIRE | ||
| 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 | Lancashire Wildlife Trust | |
| Delivery point | Wildlife Trust for Lancashire, Manchester and North Merseyside, Berkeley Drive, Bamber Bridge, Preston, Lancashire, PR5 6BY | |
| info@lancswt.org.uk | ||
| URL | http://www.lancswt.org.uk/ | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Casella Science and Environment Limited | |
| Delivery point | PO Box 13, Runcorn, Chesire, WA7 4UH, England | |
| Unknown | ||
| URL | <!-- No web site --> | |
| 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 2001. There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source. |
| 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. | |
| Available data formats | ||
| Data format | 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 | Database | |
| 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. | 2001-08-31 |
| 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 |