Collated Zostera Seagrass Bed Habitat Boundaries for Wales
Terfynau cynefinoedd Zostera ar gyfer Cymru

  • English
  • wel
  • All

Seagrass beds develop in intertidal and shallow subtidal areas on sands and muds. They may be found in marine inlets and bays but also in other areas, such as lagoons and channels, which are sheltered from significant wave action. The three species of Zostera that occur in the UK, Dwarf eelgrass (Zostera noltii), narrow-leaved eelgrass (Zostera angustifolia), and eelgrass (Zostera marina), are all considered to be scarce (present in 16-100 ten km squares) and have some protection through the EC Habitats Directive and is classed as a UK Biodiversity Action Plan (BAP) Priority Habitat. Zostera beds is also on the OSPAR List of threatened and/or declining species and habitats. The OSPAR Convention is the Convention for the Protection of the Marine Environment of the North-East Atlantic. This is a collation of Zostera habitats mapped by the Countryside Council for Wales (CCW) Phase 1 Intertidal Survey, Intertidal Monitoring Contracts, Fisheries Sensitivity maps as well as point sources derived from casework site visits, CCWs data holdings in Marine Recorder and Environment Agency Wales (EAW) Water Framework Directive (WFD) Monitoring Results. The purpose of this data capture was to create a spatial representation for Zostera habitat across Wales. This collation was carried out for reporting on the distribution of OSPAR Habitats in Wales.

Identification

Dynodydd
Identifier
NRW_DS109658
Teitl Amgen
Alternative Title
  • NERC OSPAR Seagrass Beds Polygon.lyr
  • NERC OSPAR Seagrass Beds Point.lyr
  • Zostera_beds_2008_v1.tab
Laith Metadata
Metadata Language
English
Lineage

The source data was recorded using Intertidal Phase 1 methodology, where the habitats were mapped using GIS against either OS maps or Aerial photographs. Extents mapped recorded during monitoring or casework were either created from GPS tracks or by digitising around waypoints taken in the field. Areas collated for the Fisheries sensitivity maps were created by digitising around known data points using background maps or aerial photographs. Additional beds were digitised from aerial photos. Where areas were mapped by more than one method, the source that provided the largest area was used as this provides an indications of the possible extent of the beds. All Data collected and digitised by specialists.
Additional Information

http://www.magic.gov.uk/

Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2008-12-31

Temporal Extent

Begin date
1996-01-01
End date
2008-12-31
 
Categori pwnc
Topic category
  • Biota
    Biota
Perchennog
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Various -
Enquiries Unit, Maes y Fynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW
http://naturalresourceswales.gov.uk/splash?orig=/
 

Extent

Extent

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

    ArcGIS Format

 

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

This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
Degree
false
Lineage

The source data was recorded using Intertidal Phase 1 methodology, where the habitats were mapped using GIS against either OS maps or Aerial photographs. Extents mapped recorded during monitoring or casework were either created from GPS tracks or by digitising around waypoints taken in the field. Areas collated for the Fisheries sensitivity maps were created by digitising around known data points using background maps or aerial photographs. Additional beds were digitised from aerial photos. Where areas were mapped by more than one method, the source that provided the largest area was used as this provides an indications of the possible extent of the beds. All Data collected and digitised by specialists.
 

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
  • zostera
  • zostera marina
  • zostera noltii
  • Biodiversity Action Plan (BAP)
  • OSPAR
  • seagrasses (see also potamogetonaceae and hydrocharitaceae)
  • eelgrass
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2026-08-27
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Allweddair
Keywords

SeaDataNet Parameter Discovery Vocabulary
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2024-06-19
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 2006 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
4f4c4942-4343-5764-6473-313039363538 XML
Laith Metadata
Metadata Language
English
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2026-09-28T11:03:55.301Z
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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