Intertidal Monitoring of Pectenogammarus planicrurus in Cardigan Bay and Pen Llyn ar Sarnau Special Area of Conservation (SACs) 2004

  • English
  • wel
  • All

There were numerous aims of this data capture. - To establish the presence and extent of Pectenogammarus planicrurus at two sites where it had previously been found. - To establish whether the amphipod was restricted to a localised habitat at the sites or whether it was present along the entire length of the shoreline, identify and map its presence and extent along the surf zone, estimate its abundance. - To take representative core samples for enumeration of P. planicrurus and Particle Size Analysis across the full extent of the biotope. The results of a Pectenogammarus planicrurus monitoring programme carried out at two sites- Pwllheli, Pen Llyn a'r Sarnau Special Area of Conservation (SACs) and Gilfach yr Halen, Cardigan Bay Special Area of Conservation (SACs). P. planicrurus had previously been found at these sites during Phase 1 surveys undertaken by Countryside Council for Wales (CCW) so the data collected contributed to an investigation into their continuing existence. P. planicrurus is the only amphipod which is a permanent resident of shingle beaches and is found in the intertidal zone of clean shingle beaches, often in the lee of obstacles such as rocky outcrops and groynes.

Identification

Dynodydd
Identifier
NRW_DS101994
Teitl Amgen
Alternative Title
  • 2004 CCW / IECS Pen Llyn a'r Sarnau SAC Pectenogammarus planicrurus monitoring MRCCW3020000000C
  • Monitro Rhynglanwol: Pectenogammarus planicrurus yn ACA Bae Ceredigion ac ACA Pen Llyn a'r Sarnau
Laith Metadata
Metadata Language
English
Lineage

Pwllheli: Survey was undertaken by working two hours either side of low water with part of the survey on foot and part using a quad bike (distribution of the amphipod was more extensive than previously thought so use of a quad bike enabled sampling across the full extent of the beach within a single tidal window). Initial surveying aimed to establish the presence/absence of the species throughout the site and involved randomly chosen sample stations along the surf line (position of each station recorded using dGPS). At each station a shallow trough was dug and the number of P. planicrurus estimated using MNCR SACFOR abundance scales adapted for crustacea. Small amount of sediment was sieved as a secondary check if P. planicrurus not immediately visible. Sediment particle size and infaunal samples were taken away for analysis. Gilfach Yr Halen: Survey was undertaken on foot working two hours either side of low water. Sampling stations were located approx every 10m along edge of the surf zone (position of each station recorded using dGPS). Sediment type was noted at each station and where possible a shallow trough was dug to enumerate any P. planicrurus identified. When digging a trough was not possible (on mixed hard substrata) the under cobble/boulder, and fucoid habitats were examined.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2008-12-31
Perchennog
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Countryside Council for Wales (CCW)
Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW
http://naturalresourceswales.gov.uk/splash?orig=/
Cychwynnwr
Originator
  Hull University. Institute Of Estuarine And Coastal Studies
The University of Hull, Cottingham Road, Hull, HU6 7RX
http://www.hull.ac.uk/iecs/
 

Extent

Extent

Hyd
Geographic Extent
Caernarvonshire (49)
Hyd
Geographic Extent
Merionethshire (48)
Hyd
Geographic Extent
SIR CEREDIGION - CEREDIGION
Hyd
Geographic Extent
Wales (WLS)
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
  • Geographic Information System ()

    Specification

    [A] Digital versions of the contract report: Microsoft Word document(s); and an equivalent Adobe Portable Document Format version [B] MapInfo GIS layer in MapInfo Native format (Tables): - Positions of survey stations at Pwllheli - Pen Llyn a'r Sarnau SAC. - Positions of survey stations at Gilfach yr Halen - Cardigan Bay SAC. - Translations from the above MapInfo Tables are retained in ESRI Shapefile and MapInfo Interchange formats. [C] Excel spreadsheets for Pectenogammarus planicrurus species abundance data. [D] Photographs from each location. [E] Marine Recorder file: MRCCW3020000000C

 

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

Pwllheli: Survey was undertaken by working two hours either side of low water with part of the survey on foot and part using a quad bike (distribution of the amphipod was more extensive than previously thought so use of a quad bike enabled sampling across the full extent of the beach within a single tidal window). Initial surveying aimed to establish the presence/absence of the species throughout the site and involved randomly chosen sample stations along the surf line (position of each station recorded using dGPS). At each station a shallow trough was dug and the number of P. planicrurus estimated using MNCR SACFOR abundance scales adapted for crustacea. Small amount of sediment was sieved as a secondary check if P. planicrurus not immediately visible. Sediment particle size and infaunal samples were taken away for analysis. Gilfach Yr Halen: Survey was undertaken on foot working two hours either side of low water. Sampling stations were located approx every 10m along edge of the surf zone (position of each station recorded using dGPS). Sediment type was noted at each station and where possible a shallow trough was dug to enumerate any P. planicrurus identified. When digging a trough was not possible (on mixed hard substrata) the under cobble/boulder, and fucoid habitats were examined.
 

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
  • Cardigan Bay SAC
  • gravel shore
  • Pen Llyn a'r Sarnau SAC
  • marine biology (subtidal biology) (littoral biology) (sublittoral biology)(intertidal biology)(see also seashore)
  • Pwllheli
  • Special Areas of Conservation (SAC) - SAC monitoring
  • Pectenogammarus
  • Gilfach yr Halen
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2024-04-09
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Allweddair
Keywords

SeaDataNet Parameter Discovery Vocabulary
  • Zoobenthos taxonomic abundance
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2024-03-28
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

NRW Related Title

Intertidal monitoring of pectenogammarus planicrurus in Cardigan Bay and Pen Llyn ar Sarnau SACs in 2004
 

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 2009.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
File Identifier
4f4c4942-4343-5764-6473-313031393934 XML
Laith Metadata
Metadata Language
English
Parent Identifier
Natural Resources Wales (NRW) Marine Benthic Species and Habitat Collation Held in Marine Recorder

NRW_DS114501
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2024-05-31T10:55:40.577Z
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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