West Wales Grey Seal Census 1991 to 1994
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.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS110319
- Teitl Amgen
-
- Cyfrifiad Morloi Llwyd Gorllewin Cymru 1991-1994
- Laith Metadata
- English
- Datganiad
-
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)
- 1995-12-31
Ystod amser
- Dyddiad cychwyn
- 1991-01-01
- Dyddiad gorffen
- 1994-12-31
- Categori pwnc
-
- Biota
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Maint Fertigol
- Maint allweddair MEDIN
-
benthic boundary layer
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Documents
Documents
()
- Math
-
[A] Excel spreadsheets [B] Paper report [C] Paper data - off site in archive
-
Documents
Documents
()
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
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.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
- NRW Thesaurus
-
- grey seals
- halichoerus grypus
- West Wales
- census
- seal breeding census
- marine and freshwater inventory
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2023-12-31
Allweddair
- SeaDataNet Parameter Discovery Vocabulary
-
- Seal reproduction
- Seal abundance
- Math
- Theme
Dyfyniad
- Dyddiad (Adolygu)
- 2021-01-06
Allweddair
-
NRW SMNR Vocabulary
-
- Animals, Plants and Other Organisms (SMNR)
- Natural Resources (incl. Features and Processes) (SMNR)
- Ecosystem (SMNR)
- Coastal Margins (SMNR)
- Sustainable Management of Natural Resources (SMNR)
- Sea and Coast (SMNR)
- Marine (SMNR)
- Management Areas (SMNR)
- Math
- Theme
Dyfyniad
- Dyddiad (Adolygu)
- 2023-12-27
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
-
The west Wales grey seal census
- Teitlau cysylltiedig CNC
-
West Wales grey seal census : interim report on the 1993 season
- Teitlau cysylltiedig CNC
-
West Wales grey seal census : report on the 1991 survey (In Confidence)
- Teitlau cysylltiedig CNC
-
West Wales grey seal census : report on the 1992 season
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
-
There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© 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
- 4f4c4942-4343-5764-6473-313130333139 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-31T09:43:41.221Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0