Eighteen years of capture-mark-recapture (CMR) data of grey seal pups, Halichoerus grypus, from Pembrokeshire, Wales
Deunaw mlynedd o ddata dal-nodi-ail-ddal (CMR) morloi llwyd, Halichoerus grypus, ifainc o Sir Benfro

  • English
  • wel
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Eighteen years (1954-1972) of capture-mark-recapture data of 245 grey seal pups marked with identification tags in Wales. The data was obtained from paper files held by NRW and supplied originally West Wales Field Society and includes information on the location and number of animals marked in each year including sex and age estimations.

Deunaw mlynedd (1954-1972) o ddata dal-marcio-ail-ddal 245 o forloi llwyd ifainc wedi'u nodi â thagiau adnabod yng Nghymru.


Cafwyd y data o ffeiliau papur a gedwir gan CNC ac a gyflenwyd yn wreiddiol gan Gymdeithas Maes Gorllewin Cymru ac mae'n cynnwys gwybodaeth am leoliad a nifer yr anifeiliaid a farciwyd bob blwyddyn gan gynnwys amcangyfrifon rhyw ac oedran.


Cydnabyddiaeth


Yn cynnwys gwybodaeth Cyfoeth Naturiol Cymru © a Hawl Cronfa Ddata Cyfoeth Naturiol Cymru. Cedwir pob hawl. Yn cynnwys data gwirfoddolwyr © Cymdeithas Sŵolegol Llundain a © Cymdeithas Maes Gorllewin Cymru.

Identification

Dynodydd
Identifier
NRW_DS124164
Teitl Amgen
Alternative Title
  • Ringing_Records_Full_Scan.pdf
  • Ringing_Records_Digitised.xlsx
  • Grey_seal_pup_capture-mark-recapture_METADATA (003).docx
  • Grey_seal_pup_capture-mark-recapture_VARIABLES.xlsx
  • Grey_seal_pup_capture-mark-recapture_DATA.csv
Laith Metadata
Metadata Language
English
Lineage

Seal pups were marked on beaches around the coast of Pembrokeshire covering over 100 km of National Park coastline. Seals were captured and marked with rings during the pupping season and were captured opportunistically. From detailed descriptive accounts for each individual, information of each seal’s natal colony, condition, and censorship, as well as an estimated of their date of birth and calculation of the duration of time between mark and recapture was derived. From original text descriptions of mark locations geolocated accurate positional information in a latitude-longitude format was also derived. Data collected in 1952 and 1953 were not documented in the paper files. However, a summary of records for 1952-1953 can be found in Hewer (1955).
Additional Information

Kay, W. P., Börger, L., Stringell, T. B., Mortlock, E., Lock, K., Alexander, M., Bull, J. C. (Year) Eighteen years of capture-mark-recapture data of grey seal pups, Halichoerus grypus, from Pembrokeshire, Wales, United Kingdom.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2019-10-28
Perchennog
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Perchennog
Owner
  Zoological Society London (ZSL) -
Zoological Society London (ZSL), London Zoo, Outer Circle, Regent's Park, London, NW1 4RY
https://www.zsl.org/
Cychwynnwr
Originator
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 

Extent

Extent

Hyd
Geographic Extent
SIR BENFRO - PEMBROKESHIRE
N
W
E
S
Map representing the geographic extent of the dataset


 

Vertical Extent

Medin Extent Keyword

littoral
 
 

Distribution

Dosbarthiad
Distribution

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

    Specification

    Excel spreadsheets

  • Documents ( )

    Specification

    PDF and.docx copies of the scientific paper and metadata [B] Scan of paper field records

Lleolwr Adnoddau
Resource Locator
View and Download Data ( WWW:LINK-1.0-http--link )
 

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

Seal pups were marked on beaches around the coast of Pembrokeshire covering over 100 km of National Park coastline. Seals were captured and marked with rings during the pupping season and were captured opportunistically. From detailed descriptive accounts for each individual, information of each seal’s natal colony, condition, and censorship, as well as an estimated of their date of birth and calculation of the duration of time between mark and recapture was derived. From original text descriptions of mark locations geolocated accurate positional information in a latitude-longitude format was also derived. Data collected in 1952 and 1953 were not documented in the paper files. However, a summary of records for 1952-1953 can be found in Hewer (1955).
 

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 mammals
  • marine mammals
  • halichoerus grypus
  • seals (see also specific species)
  • dispersal
  • grey seals
  • ontogeny
  • mark-release-recapture
  • population dynamics
  • pinnipedia (pinnipeds)
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2025-01-08
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
 

Spatial Reference System

Code
Latitude and Longitude (EPSG::4326)
 

Content

Gwybodaeth Cynnwys
Content Information

Proffil CNC
NRW Profile

Elfennau CNC
Custom Elements

 

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

This data is comprised of a mixture of third party owned records and NRW records. NRW policy permits access to and release of this data under the same terms as its own data. There are no access restrictions on 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, ZSL, WWFS and various third-party recorders NRW owns the copyright of the collation, but the ownership of the records themselves rests with the originators. Data held by NRW 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.
 

Attribution Statement

Other constraints

Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Contains volunteer data © Zoological Society London and © West Wales Field Society
 

Licence

Other constraints
Open Government Licence
 
 
 

Metadata

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313234313634 XML
Laith Metadata
Metadata Language
English
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2026-03-03T16:24:55.393Z
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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