Surveys of Potential Oystercatcher Prey, Pembrey Sands (2009)

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The Burry Inlet Special Protection Area (SPA) supports nationally and internationally important populations of wildfowl and waders. Countryside Council for Wales (CCW) are studying the food requirements of oystercatcher and knot, to develop monitoring targets and to assess the implications of shellfish fisheries on the bird populations. As part of that study, surveys of the cockle and mussel stocks in the Burry Inlet have been carried out every autumn since 2004, using a standard methodology. Significant populations of oystercatcher also feed in the Three Rivers and along Pembrey Sands and it is known that they are part of the same population that feed in the Burry Inlet SPA, but the information is limited. Data from the British Trust for Ornithology (BTO) on oystercatcher distribution along the Pembrey coast showed that they concentrate in the central section of the Sands and confirmed that they are feeding at low tide. It is known from previous survey work that the sediment fauna found along the Pembrey coast are likely to include a variety of shellfish (but not cockles and mussels), however data is limited. The purpose of this data capture was to provide data on the abundance and distribution of the potential prey species for the oystercatcher along the Pembrey Sands due to limited data availability. This data aimed to determine the potential prey of the oystercatcher in Pembrey Sands, examining the abundance and distribution of the sediment fauna. Previous findings showed that high numbers of the main prey species of the oyster catchers (cockles and mussels) were not found in the area.

Identification

Dynodydd
Identifier
NRW_DS115123
Teitl Amgen
Alternative Title
  • Arolygon o ysglyfaeth posibl piod mor, Traeth Pen-bre, 2009
Laith Metadata
Metadata Language
English
Lineage

The methodology for Pembrey Sands was adapted from that used for the cockle surveys in the Burry Inlet. A total of 97 stations with 250 m spacing were sampled from a grid of 161 stations, using a 0.1m2 quadrat / 2 mm mesh sieve. All sampled stations extended from the mid tide level to below the likely low tide level in Pembrey Sands. Bivalves that were retained in the sieve were identified, counted and their shell lengths were measured with vernier callipers. Additionally counts of polychaetes >2 cm body length were recorded, and tube dwelling and tubeless polychaetes were distinguished. Observations made by four surveyors (experience unknown). The methodology used has been applied to surveys in the Bury Inlet since 2004 and is astandard methodology (Moore, 2009). Further information can be found in the CCW report \Surveys of potential oystercatcher prey Pembrey Sands 2009\"."
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2009-10-26
Perchennog
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Coastal Assessment Liaison and Monitoring (CALM)
Ti Cara, Point Lane, Cosheston, Pembrokeshire, SA72 4UN, Wales
<!--No website -->
 

Extent

Extent

Hyd
Geographic Extent
SIR GAERFYRDDIN - CARMARTHENSHIRE
N
W
E
S
Map representing the geographic extent of the dataset


 

Vertical Extent

Medin Extent Keyword
benthic boundary layer
 
 

Distribution

Fformat - Math a Disgrifiad
Format Type and Description
  • Documents ()

    Specification

    [A] Raw data held in MS Excel and MapInfo [B] Summary statistics and calculations held in MS Excel [C] Report - MS Word

 

Quality

Ansawdd Data
Data quality

Cwmpas Ansawdd
Quality Scope
Dataset
Dataset
Cydymffurfiad
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

The methodology for Pembrey Sands was adapted from that used for the cockle surveys in the Burry Inlet. A total of 97 stations with 250 m spacing were sampled from a grid of 161 stations, using a 0.1m2 quadrat / 2 mm mesh sieve. All sampled stations extended from the mid tide level to below the likely low tide level in Pembrey Sands. Bivalves that were retained in the sieve were identified, counted and their shell lengths were measured with vernier callipers. Additionally counts of polychaetes >2 cm body length were recorded, and tube dwelling and tubeless polychaetes were distinguished. Observations made by four surveyors (experience unknown). The methodology used has been applied to surveys in the Bury Inlet since 2004 and is astandard methodology (Moore, 2009). Further information can be found in the CCW report \Surveys of potential oystercatcher prey Pembrey Sands 2009\"."
 

Keywords

Allweddair
Keywords

GEMET - INSPIRE themes, version 1.0
Math
Type
Theme
Theme

Dyfyniad
Citation

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

Allweddair
Keywords

NRW Thesaurus
  • Pembrey
  • prey
  • angulus tenuis
  • thin tellin
  • bivalve molluscs
  • lamellibranchia (pelecypoda) (bivalvia)
  • oystercatchers
  • haematopus ostralegus
  • shellfish
  • bird food
Math
Type
Theme
Theme

Dyfyniad
Citation

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

Allweddair
Keywords

SeaDataNet Parameter Discovery Vocabulary
  • Zoobenthos taxonomy-related counts
Math
Type
Theme
Theme

Dyfyniad
Citation

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

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Gwybodaeth Cynnwys
Content Information

Proffil CNC
NRW Profile

Elfennau CNC
Custom Elements

 

Constraints

Constraints

Limitations on Public Access and Use

Math o Gyfyngiad
Restriction type
Other restrictions
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

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
Other restrictions
Other constraints

© 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
File Identifier
4f4c4942-4343-5764-6473-313135313233 XML
Laith Metadata
Metadata Language
English
Parent Identifier
Cockle and Mussel Stock (bird food) Surveys in the Burry Inlet 2005 - 2009

NRW_DS108873
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2024-12-09T12:31:38.886Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
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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