Results of Studies into the Impact of Hydraulic Cockle Dredging on Intertidal Sediment Flat Communities

This dataset contains the results of experimental studies investigating the impact of hydraulic cockle dredging on intertidal sediment flat communities at Lafan Sands, North Wales, and Blackshaw Flats, Solway Firth during 1989 and 1990. The purpose of this data capture was to assess the implications of hydraulic dredging for marine nature conservation.

Identification

Identifier
NRW_DS111077
Alternative Title
  • 1989 FSCRC Lavan Sands littoral cockle dredging study JNCCMNCR10000291
  • 1990 FSCRC Lavan Sands littoral cockle dredging study JNCCMNCR10000292
Metadata Language
English
Lineage

Six sites were established in each area, three to act as controls for the three experimental sites which were dredged during one tidal cycle during June in the case of Lafan Sands, and July for the Blackshaw Flats. The sites were sampled for infaunal and sedimentological analyses on the day before dredging, then one day, one week, three months and six months after dredging. The data were analysed with the aid of a variety of statistical and graphical techniques.
Dataset Reference Date (Publication)
1990-12-31
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Originator
  TI Cara -
Environmental Consultant, Coastal Assessment, Liason and Monitoring, Ti Cara, Point Lane, Cosheston, Pembrokeshire, SA72 4UN
http://www.ticara.co.uk/calm http://www.ticara.co.uk/calm
Originator
  Various -
Enquiries Unit, Maes y Fynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW
http://naturalresourceswales.gov.uk/splash?orig=/
Originator
  Nature Conservancy Council (NCC) -
c/o Natural Resources Wales, Maes Y Ffynnon, Penrhosgarnedd, Bangor, LL57 2DW, Wales
http://naturalresourceswales.gov.uk/splash?orig=/
 

Extent

Extent

Geographic Extent
Scotland (SCT)
Geographic Extent
England (ENG)
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

Distribution

Format Type and Description
  • Database ( )

    Specification

    [A] Survey data in Marine Recorder (JNCCMNCR10000291, JNCCMNCR10000292)

  • Documents ( )

    Specification

    Paper report

 

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

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

Six sites were established in each area, three to act as controls for the three experimental sites which were dredged during one tidal cycle during June in the case of Lafan Sands, and July for the Blackshaw Flats. The sites were sampled for infaunal and sedimentological analyses on the day before dredging, then one day, one week, three months and six months after dredging. The data were analysed with the aid of a variety of statistical and graphical techniques.
 

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
  • cockles
  • cerastoderma edule (previously known as cardium edule)
  • Solway Firth
  • cockle beds
  • marine sediments (coastal sediments) (intertidal sediments) (subtidal sediments)
  • Lafan sands (Lavan sands)(Traeth Lafan)
  • cockle dredging (hydraulic dredging)
  • cockle dredging (hydraulic dredging)
  • sediment flats
Type
Theme

Citation

Date (Publication)
2025-01-08
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Keywords

SeaDataNet Parameter Discovery Vocabulary
Type
Theme

Citation

Date (Publication)
2024-06-19
Code
geonetwork.thesaurus.external.theme.rdf+xml
 

Spatial Reference System

Code
Latitude and Longitude (EPSG::4326)
 

Content

Content Information

NRW Profile

Custom Elements

NRW Related Title

Experimental studies of the impact of hydraulic cockle dredging on intertidal sediment flat communities.
 

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

© NRW 1990. 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.
 

Attribution Statement

Other constraints

Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.
 
 
 

Metadata

Metadata

File Identifier
4f4c4942-4343-5764-6473-313131303737 XML
Metadata Language
English
Resource type
Dataset
Metadata Date
2026-03-03T14:43:47.131Z
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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