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.

Identification

Identifier
NRW_DS110103
Alternative Title
  • Monitro mor-hwyaid duon Melanitta nigra ym Mae Caerfyrddin yn dilyn gollyngiad olew'r Sea Empress
Metadata Language
English
Lineage

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.
Dataset Reference Date (Publication)
1997-11-30
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Originator
  Wildfowl And Wetlands Trust (WWT)
Wildfowl and Wetlands Trust (WWT), Slimbridge, Gloucestershire, GL2 7BT, England
http://www.wwt.org.uk/
Originator
  Royal Society for the Protection of Birds (RSPB)
Sutherland House, Cowbridge Road East, Cardiff, CF11 9AB
http://www.rspb.org.uk/wales/
 

Extent

Extent

Geographic Extent
Wales (WLS)
Geographic Extent
SIR GAERFYRDDIN - CARMARTHENSHIRE
N
W
E
S
Map representing the geographic extent of the dataset


 

Vertical Extent

Medin Extent Keyword

water column skin; benthic boundary layer
 
 

Distribution

Format Type and Description
  • Documents ()

    Specification

    [A] Report is held as PDF, including two Word versions of draft copy. [B] A map of the area is held in .jpg format.

 

Quality

Data quality

Quality Scope
Dataset
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
Degree
false
Lineage

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.
 

Keywords

Keywords

GEMET - INSPIRE themes, version 1.0
Type
Theme

Citation

Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Keywords

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
Type
Theme

Citation

Date (Publication)
2023-12-31
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Keywords

SeaDataNet Parameter Discovery Vocabulary
  • Bird taxonomy-related abundance per unit area of surface
Type
Theme

Citation

Date (Revision)
2021-01-06
Code
geonetwork.thesaurus.external.theme.rdf+xml

Keywords

Integrated Public Sector Vocabulary
  • oil spillage
Type
Theme

Citation

Date (Revision)
2013-04-03
Code
geonetwork.thesaurus.external.theme.subjects
 

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Content Information

NRW Profile

Custom Elements

NRW Related Title

Common scoter Melanitta nigra monitoring in Carmarthen Bay following the Sea Empress oil spill
NRW Related Title

Aerial Monitoring of Common Scoter Melinitta nigra in Carmarthen Bay 2010 - 2011
NRW Related Title

Common scoter monitoring in Carmarthen Bay following the Sea Empress oil spill. April 1997 to March 1998
NRW Related Title

Food sources for common scoter in Carmarthen Bay
NRW Related Title

Ground and aerial monitoring of common scoters in Carmarthen Bay 2007 - 2008
NRW Related Title

Ground and aerial monitoring protocols for in shore special protection areas : common scoter in Carmarthen Bay 2002 - 04
NRW Related Title

Ground based monitoring of common scoters in Carmarthen Bay 2008-2009
NRW Related Title

Ground based monitoring of common scoters in Carmarthen Bay 2009-2010
NRW Related Title

Ground based monitoring of common scoters in Carmarthen Bay 2011-2012
NRW Related Title

Ground based monitoring of common scoters in Carmarthen Bay SPA 2010/11
NRW Related Title

Studies of common scoter Melanitta nigra nigra killed during the Sea Empress oil spill
NRW Related Title

Survey of Common scoter (Melanitta nigra) in Carmarthen Bay 1994/95
 

Constraints

Constraints

Limitations on Public Access and Use

Restriction type
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
 

Use Constraints

Use constraints type
Other restrictions
Other constraints

© 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

File Identifier
4f4c4942-4343-5764-6473-313130313033 XML
Metadata Language
English
Resource type
Dataset
Metadata Date
2024-05-31T09:38:39.29Z
Metadata Standard Name
NRW
Metadata Standard Version

1.0

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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