West Wales Grey Seal Census 1991 to 1994 (paper data)
Cyfrifiad Morloi Llwyd Gorllewin Cymru 1991-1994 (cofnodion papur)

  • English
  • wel
  • All

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.

Identification

Dynodydd
Identifier
NRW_DS110319
Laith Metadata
Metadata Language
English
Lineage

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.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
1995-12-31

Temporal Extent

Begin date
1991-01-01
End date
1994-12-31
 
Categori pwnc
Topic category
  • Biota
    Biota
Perchennog
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Dyfed Wildlife Trust -
c/o The Wildlife Trust of South and West Wales, Nature Centre, Parc Slip, Fountain Road, Mid Glamorgan, CF32 0E, Wales
http://www.welshwildlife.org/
 

Extent

Extent

Hyd
Geographic Extent
Wales (WLS)
N
W
E
S
Map representing the geographic extent of the dataset


 

Vertical Extent

Medin Extent Keyword

benthic boundary layer
 
 

Distribution

Fformat - Math a Disgrifiad
Format Type and Description
  • Documents ( )

    Specification

    [A] Excel spreadsheets [B] Paper report [C] Paper data - off site in archive

 

Quality

Ansawdd Data
Data quality

Cwmpas Ansawdd
Quality Scope
Dataset
Dataset
Cydymffurfiad
Conformity
Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
Explanation

This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
Degree
false
Lineage

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.
 

Keywords

Allweddair
Keywords

GEMET - INSPIRE themes, version 1.0
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair
Keywords

NRW Thesaurus
  • marine and freshwater inventory
  • seal breeding census
  • paper data
  • grey seals
  • census
  • West Wales
  • halichoerus grypus
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2026-08-27
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Allweddair
Keywords

SeaDataNet Parameter Discovery Vocabulary
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2024-06-19
Code
geonetwork.thesaurus.external.theme.rdf+xml

Allweddair
Keywords

NRW SMNR Keywords
  • Ecosystem (SMNR)
  • Marine (SMNR)
  • Animals, Plants and Other Organisms (SMNR)
  • Management Areas (SMNR)
  • Natural Resources (Incl. Features and Processes) (SMNR)
  • Sea and Coast (SMNR)
  • Sustainable Management of Natural Resources (SMNR)
  • Coastal Margins (SMNR)
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2024-06-26
Code
geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords
 

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Gwybodaeth Cynnwys
Content Information

Proffil CNC
NRW Profile

Elfennau CNC
Custom Elements

NRW Related Title

The west Wales grey seal census
NRW Related Title

West Wales grey seal census : interim report on the 1993 season
NRW Related Title

West Wales grey seal census : report on the 1991 survey (In Confidence)
NRW Related Title

West Wales grey seal census : report on the 1992 season
 

Constraints

Constraints

Limitations on Public Access and Use

Math o Gyfyngiad
Restriction type
Other restrictions
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
 

Use Constraints

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
Other restrictions
Other constraints

© 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.
 
 
 

Metadata

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313130333139 XML
Laith Metadata
Metadata Language
English
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2026-09-28T13:51:16.7Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
pointOfContact
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 
 

Publishing Body

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