Cyfrif Morloi Llwyd Ynys Enlli
Grey seals Halichoerus grypus are among the rarest seals in the world: the UK population represents about 40% of the world population and 95% of the EU population. Globally, there are three reproductively-isolated stocks of grey seal: a west Atlantic (northern North American) stock; a Baltic stock; and an East Atlantic stock. The latter extends from Iceland and northern Norway southwards to northern France, with the majority breeding around Great Britain and Ireland.
The extent of connectivity within the Irish Sea grey seal (Halichoerus grypus) population has been investigated every year since 2006 using photo-identification and bio-logging techniques.
The purpose of this data capture was to survey Bardsey seal population fluctuations. Surveys were undertaken by both trained staff and volunteers.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS115518
- Laith Metadata
- English
- Datganiad
-
Seal counts on Bardsey are taken during a weekly walk round the island during the period where most seals would be hauled out, dry and resting. Seals are differentiated into various stage and gender categories, from youngest to oldest, i.e. white-coat pup; fully moulted pup; youngster; juvenile (female and male); adult male and adult female; and indeterminate (sex of the individual unknown). The seasons are classified as follows: autumn (September to November); winter (December to February; to spring (March to May) and summer (June to August).
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2013-01-20
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Maint Fertigol
- Maint allweddair MEDIN
-
unknown
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Documents
(
)
- Math
-
[A] Raw counts provided by Jo Porter in word .doc format [B] Master Speadsheet in xls format collating all the information and also collation in word format [C] Protocol for low tide counts
-
Documents
(
)
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Cydymffurfiad
- 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
- Eglurhad
-
This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Gradd
- false
- Datganiad
-
Seal counts on Bardsey are taken during a weekly walk round the island during the period where most seals would be hauled out, dry and resting. Seals are differentiated into various stage and gender categories, from youngest to oldest, i.e. white-coat pup; fully moulted pup; youngster; juvenile (female and male); adult male and adult female; and indeterminate (sex of the individual unknown). The seasons are classified as follows: autumn (September to November); winter (December to February; to spring (March to May) and summer (June to August).
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
-
NRW Thesaurus
-
- grey seals
- halichoerus grypus
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2026-03-04
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-06-19
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
-
This data is jointly owned by NRW and RSPB. There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© CNC/NRW and RSPB. NRW owns the copyright of the collation, but the ownership of the records themselves rests with the RSPB. Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and copyright of the owners. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
Datganiad Priodoli
- Cyfyngiadau eraill
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Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Contains RSPB information © Royal Society for the Protection of Birds.
Math o Drwydded
- Cyfyngiadau eraill
- Open Government Licence
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313135353138 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2026-03-05T10:29:57.739Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0