Coastal Saline Lagoons and Pools in Wales

  • English
  • wel
  • All

The Natural History Museum was asked by the Countryside Council for Wales (CCW) to undertake a survey of all potential lagoonal or coastal brackish pond sites in Wales. This dataset presents the results of that survey, conducted during December 1998 as well as the results of the review and proposals for the monitoring and conservation of the coastal saline lagoons in Wales. Lagoons are an unusual and rare habitat, both in the UK (total resource ca 5,000 ha) and elsewhere. The characteristic lagoon community includes species almost or entirely restricted to lagoonal habitats in the United Kingdom, where they represent some of our rarest plants and animals; nine lagoonal species are currently protected under Schedules 5 and 8 of the Wildlife and Countryside Act (1981). Survey of lagoonal habitats in Wales to identify lagoons and pools and carry out an assessment of condition and monitoring.

Identification

Dynodydd
Identifier
NRW_DS109980
Teitl Amgen
Alternative Title
  • 1998 CCW/NHM Wales saline lagoons and pools survey JNCCMNCR40000799
  • Lagwnau a phyllau hallt arfordirol yng Nghymru
Laith Metadata
Metadata Language
English
Lineage

While there had been a number of surveys of saline lagoons in England and Scotland (e.g. Bamber, 1997; Covey, 1999), there had been no investigation of the saline lagoon resource of Wales other than the NCC survey in the mid 1980s (e.g. Barnes, 1987). This dataset represents the results of the first complete survey of lagoonal habitats in Wales since then. A total of 28 potential sites or ponds were assessed, 25 ponds visited, 18 sampled, of which 12 were deemed to be saline lagoons or coastal brackish ponds. At each site the physiography of the lagoon was assessed as were all water inputs (streams, sluices, weirs, etc.) and outflows. The surrounding habitat or human exploitation of the land was noted, as were marginal plants. Salinity was measured using a Reichert salinity refractometer. Semi-quantitative samples were collected from the substratum, the submerged plants and the water column of the lagoons. Sampling was predominantly by 0.5 mm mesh hand net. Fragments of submerged plant material and other hard substrata were also examined for bryozoans and other epizooites. Quantitative samples of the sedimentary benthos were collected from sites conjectured to be saline lagoons and also from para-lagoonal habitats for analytical comparison. At each of the twelve quantitative sample sites, a sample of whole surface sediment was collected for granulometric analysis and for analysis of organic content . Area and depth were measured and sites were photographed. Where found lagoonal cockles were measured to aid interpretation of year classes.
Additional Information

Senior Marine Monitoring Ecologist, NRW - Bamber, RN., Evans, NJ., Whittall, A. 2000. Survey of potential coastal saline lagoons and pools in Wales, December 1998. Countryside Council for Wales Science Report 377. Bangor. - Bamber, RN., Evans, NJ., Sanderson, WG., Whittall, A. Coastal saline lagoons and pools in Wales: Review and proposals. Countryside Council for Wales Science Report 464.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2000-04-30

Temporal Extent

Begin date
1998-12-01
End date
1998-12-31
 
Categori pwnc
Topic category
  • Environment
    Environment
  • Biota
    Biota
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=/
 

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
  • Database ( )

    Specification

    [A] Data in spreadsheet format (MS Excel) [B] Data in Marine Recorder (JNCCMNCR40000799) [C] Held in paper format as MNCR forms [D] Report (MS Word, 8 maps (tif format in Imaging for Windows) [E] 31 photos in .jpg (PhotoEditor) & .tif format (Imaging), 3 x .cdr files)

 

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

While there had been a number of surveys of saline lagoons in England and Scotland (e.g. Bamber, 1997; Covey, 1999), there had been no investigation of the saline lagoon resource of Wales other than the NCC survey in the mid 1980s (e.g. Barnes, 1987). This dataset represents the results of the first complete survey of lagoonal habitats in Wales since then. A total of 28 potential sites or ponds were assessed, 25 ponds visited, 18 sampled, of which 12 were deemed to be saline lagoons or coastal brackish ponds. At each site the physiography of the lagoon was assessed as were all water inputs (streams, sluices, weirs, etc.) and outflows. The surrounding habitat or human exploitation of the land was noted, as were marginal plants. Salinity was measured using a Reichert salinity refractometer. Semi-quantitative samples were collected from the substratum, the submerged plants and the water column of the lagoons. Sampling was predominantly by 0.5 mm mesh hand net. Fragments of submerged plant material and other hard substrata were also examined for bryozoans and other epizooites. Quantitative samples of the sedimentary benthos were collected from sites conjectured to be saline lagoons and also from para-lagoonal habitats for analytical comparison. At each of the twelve quantitative sample sites, a sample of whole surface sediment was collected for granulometric analysis and for analysis of organic content . Area and depth were measured and sites were photographed. Where found lagoonal cockles were measured to aid interpretation of year classes.
 

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
  • lagoons
  • saline lagoons
  • physiography
  • salinity
  • bryozoans
  • benthos
  • ganulometric analysis
  • coastal saline lagoon
  • coastal lagoon
  • pools
  • lagoonal
  • marginal plants
  • substratum
  • epizooites
  • Morfa Gwyllt spit lagoon
  • Pickleridge lagoon
  • Aberthaw
  • paralagoonal habitat
  • ganulometric analysis
  • lagoonal cockles
  • Aber (Abergwyngregyn)
  • Cemlyn Lagoon
  • Carew Castle mill pond
  • Penclacwydd
  • marine and freshwater inventory
  • Sediment PSA
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
  • Shellfish morphology, age and physiology
  • Concentration of organic matter in sediments
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

Survey of potential coastal saline lagoons and pools in Wales, December 1998
NRW Related Title

Coastal saline lagoons and pools in Wales : review and proposals
 

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 2000. 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
4f4c4942-4343-5764-6473-313039393830 XML
Laith Metadata
Metadata Language
English
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2026-07-01T14:14:03.201Z
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

Access the portal