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Metadata: West Wales Grey Seal Census 1991 to 1994
Abstract:
The large breeding colonies of grey seals in northern Britain have been censused annually in recent years by the Sea Mammal Research Unit, but the relatively small population in Wales had not been the subject of a population estimate since 1974 and there had never been a comprehensive census of all mainland and island sites sustained through a pupping season. The purpose of this data capture was to locate and document all grey seal breeding sites during the main pupping season from September to December 1991 and to estimate pup production at these sites. To estimate the total number of cows in the West Wales population, identify 'areas' where seals are subject to disturbance by man and assess the quality of the breeding haul-out environment.
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 | 8669 |
| 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. | West Wales Grey Seal Census 1991 to 1994 |
| 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_DS110319 |
| Resource Identifier | This is the code assigned by the data owner. | 4f4c4942-4343-5764-6473-313130333139 |
| 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 | 1991-01-01 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 1994-12-31 |
| 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 large breeding colonies of grey seals in northern Britain have been censused annually in recent years by the Sea Mammal Research Unit, but the relatively small population in Wales had not been the subject of a population estimate since 1974 and there had never been a comprehensive census of all mainland and island sites sustained through a pupping season. The purpose of this data capture was to locate and document all grey seal breeding sites during the main pupping season from September to December 1991 and to estimate pup production at these sites. To estimate the total number of cows in the West Wales population, identify 'areas' where seals are subject to disturbance by man and assess the quality of the breeding haul-out environment. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | The study area comprising the Dyfed coast and offshore islands between Aberystwyth and Caldey Island was divided into 11 sections designated by the letters A to K, at locations with road access to slipways from which the survey vessel could be launched.In each section the coast was surveyed by land and sea between September 1991 and the onset of the 1992 pupping season and all locations considered to be possible grey seal pupping sites were recorded on maps and investigated by landing on the site from the sea. The criteria used for inclusion in the list of potential pupping sites were: - The presence of a beach above the level of high-water, - Access for seals from the sea, and - Relatively low human disturbance. |
| 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 | marine and freshwater inventory | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | halichoerus grypus | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | grey seals | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | West Wales | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | census | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | seal breeding census | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Seal abundance | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Seal reproduction | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Animals, Plants and Other Organisms (SMNR) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Sea and Coast (SMNR) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Ecosystem (SMNR) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Coastal Margins (SMNR) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Management Areas (SMNR) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Sustainable Management of Natural Resources (SMNR) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine (SMNR) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Natural Resources (Incl. Features and Processes) (SMNR) | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 52.5015075 |
| East | The eastern-most limit of the data resource in decimal degrees | -4.04813711 |
| South | The southern-most limit of the data resource in decimal degrees | 51.40728421 |
| West | The western-most limit of the data resource in decimal degrees | -5.71776971 |
| 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 | Dyfed Wildlife Trust | |
| Delivery point | c/o The Wildlife Trust of South and West Wales, Nature Centre, Parc Slip, Fountain Road, Mid Glamorgan, CF32 0E, Wales | |
| info@welshwildlife.org | ||
| URL | http://www.welshwildlife.org/ | |
| 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. | 1995-12-31 |
| 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 |