Common scoter Melanitta nigra monitoring in Carmarthen Bay following the Sea Empress oil spill.
Following the Sea Empress oil spill, a monitoring programme was immediately established by the Countryside Council for Wales to record numbers and distribution of Common Scoters in Carmarthen Bay. Scoters generally prefer feeding in waters less than 10 m deep and previous aerial surveys in Carmarthen Bay have shown that most birds feed inshore of the 10 m depth contour which extends some 6-10 km offshore. The purpose of this data capture was to assess the impact of the Sea Empress oil spill on Common Scoter numbers and distribution in Camarthen Bay. There is high confidence in this dataset as surveys undertaken by experienced staff members. However no spatial reference were provided with data for statistical analysis. It is assumed for the purpose of the metadata that samples were collected using British National Grid.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS110103
- Teitl Amgen
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- Monitro mor-hwyaid duon Melanitta nigra ym Mae Caerfyrddin yn dilyn gollyngiad olew'r Sea Empress
- Laith Metadata
- English
- Datganiad
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A total of 30 land-based counts were conducted at two-week intervals between 23 February 1996 and 1 April 1997. For monitoring purposes, the bay was divided into 13 sectors and each counted from vantage points collectively covering all coastal areas of the bay. Six aerial surveys of Carmarthen Bay were conducted by RSPB using a high-wing Cessna 185 aircraft flying at 120 m and 90 knots. For compatibility with previous surveys in 1976, aerial surveys followed a circular route of the bay with transect lines some 3-5 km apart. As birds were only visible at distances up to 500 m either side of the aircraft, this survey route provided an index of scoter numbers and distribution rather than a total count. A sustained program of monitoring scoters in Carmarthen bay has been in place since 1997.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 1997-11-30
Ystod amser
- Dyddiad cychwyn
- 1996-02-22
- Dyddiad gorffen
- 1997-04-01
- Categori pwnc
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- Biota
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
- Hyd
- SIR GAERFYRDDIN - CARMARTHENSHIRE
))
Maint Fertigol
- Maint allweddair MEDIN
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water column skin; benthic boundary layer
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Documents
()
- Math
-
[A] Report is held as PDF, including two Word versions of draft copy. [B] A map of the area is held in .jpg format.
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Documents
()
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
A total of 30 land-based counts were conducted at two-week intervals between 23 February 1996 and 1 April 1997. For monitoring purposes, the bay was divided into 13 sectors and each counted from vantage points collectively covering all coastal areas of the bay. Six aerial surveys of Carmarthen Bay were conducted by RSPB using a high-wing Cessna 185 aircraft flying at 120 m and 90 knots. For compatibility with previous surveys in 1976, aerial surveys followed a circular route of the bay with transect lines some 3-5 km apart. As birds were only visible at distances up to 500 m either side of the aircraft, this survey route provided an index of scoter numbers and distribution rather than a total count. A sustained program of monitoring scoters in Carmarthen bay has been in place since 1997.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
- NRW Thesaurus
-
- common scoter (black scoter)
- melanitta nigra
- monitoring (see specific types of monitoring eg. woodland monitoring)
- Carmarthen Bay
- Sea Empress
- distributions
- aerial surveys
- land based counts
- marine and freshwater inventory
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2023-12-31
Allweddair
- SeaDataNet Parameter Discovery Vocabulary
-
- Bird taxonomy-related abundance per unit area of surface
- Math
- Theme
Dyfyniad
- Dyddiad (Adolygu)
- 2021-01-06
Allweddair
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
-
Common scoter Melanitta nigra monitoring in Carmarthen Bay following the Sea Empress oil spill
- Teitlau cysylltiedig CNC
-
Aerial Monitoring of Common Scoter Melinitta nigra in Carmarthen Bay 2010 - 2011
- Teitlau cysylltiedig CNC
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Common scoter monitoring in Carmarthen Bay following the Sea Empress oil spill. April 1997 to March 1998
- Teitlau cysylltiedig CNC
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Food sources for common scoter in Carmarthen Bay
- Teitlau cysylltiedig CNC
-
Ground and aerial monitoring of common scoters in Carmarthen Bay 2007 - 2008
- Teitlau cysylltiedig CNC
-
Ground and aerial monitoring protocols for in shore special protection areas : common scoter in Carmarthen Bay 2002 - 04
- Teitlau cysylltiedig CNC
-
Ground based monitoring of common scoters in Carmarthen Bay 2008-2009
- Teitlau cysylltiedig CNC
-
Ground based monitoring of common scoters in Carmarthen Bay 2009-2010
- Teitlau cysylltiedig CNC
-
Ground based monitoring of common scoters in Carmarthen Bay 2011-2012
- Teitlau cysylltiedig CNC
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Ground based monitoring of common scoters in Carmarthen Bay SPA 2010/11
- Teitlau cysylltiedig CNC
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Studies of common scoter Melanitta nigra nigra killed during the Sea Empress oil spill
- Teitlau cysylltiedig CNC
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Survey of Common scoter (Melanitta nigra) in Carmarthen Bay 1994/95
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
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© CNC/NRW 1997. There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313130313033 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-31T09:38:39.29Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
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1.0