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Wales' grey seal photo-identification database: EIRPHOT (1992-2016)

Publisher
Natural Resources Wales
Updated
16 September 2026
Topic
Not set
Licence
Not set

Summary

This dataset is a catalogue of seal images that were collected as part of the former Countryside Council for Wales (CCW) and Natural Resources Wales' (NRW) seal monitoring and evidence work.

Images were also provided by volunteers, partners, organisations and members of the public through collaboration with CCW/NRW. The images are of heads, necks and flanks of grey seals (mostly female) photographed at seal haul out sites around the Celtic and Irish Seas from 1992 to 2016 and show the pelage markings of seals that can be individually recognised/identified from subsequent photographic encounters – photo-identification (Capture, Mark, Recapture).

The database contains over 17,000 photographic images of more than 9,000 grey seals. Photo-ID allows individual seals to be captured through time and space and analyses of the data provide insights into site fidelity and associations, movements and connectivity, and longevity/survival.

This entry supersedes metadata entry 115548 which was created in 2013.

Data links

Link Format Preview Updated
View and Download Data – 16/9/2026

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Additional information

Source Metadata
XML, HTML
Date added
03 March 2026
Harvest GUID
NRW_DS122202
Extent (Latitude)
53.513067° to 51.240829°
Extent (Longitude)
-5.777741° to -2.608865°
Dataset reference date (publication)
2019-10-30
Frequency of update
notPlanned
Access constraints
There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Responsible party
Natural Resources Wales (NRW) (owner, custodian, originator, distributor)
ISO 19139 resource type
dataset
Metadata language
eng