Survey of North Wales and Pembrokeshire tide influenced communities

As part of the UK's commitment to the 1992 UNEP Convention on Biological Diversity there have been a number of coordinated initiatives to identify those habitats which may be under threat in the UK, and to establish plans to reduce those threats and thereby maintain biodiversity. The UK Biodiversity Action Plan (BAP) is now one of the main focuses of that work. It provides detailed proposals for a number of species, species groups and habitats requiring urgent conservation action. Tidal Rapids is one of those habitats. Tidal Rapids are a UK Biodiversity Action Plan feature and rocky Reefs are listed as an Annex I feature under the Habitats Directive (1992). These features are of conservation importance and the data collected during this survey is used to help define conservation objectives and inform decisions regarding protection and management.

Identification

Identifier
NRW_DS86828
Alternative Title
  • 2002 CCW/CALM Menai Strait tidally exposed seabed and shores MRCCW80000000002
  • 2002 CCW/CALM Milford Haven and Daugleddau Estuary tidally exposed seabed and shores MRCCW80000000003
  • 2003 CCW/CALM NW Anglesey tidally exposed seabed and shores MRCCW80000000004
  • 2003 CCW/CALM West Pembrokeshire tidally exposed seabed and shores MRCCW80000000005
  • Arolwg o gymunedau dan ddylanwad y llanw yng ngogledd Cymru a Sir Benfro
Metadata Language
English
Lineage

Marine biological surveys of seabed habitats and communities in four areas exposed to strong tidal currents around southwest and northwest Wales, were made in summer 2002 and summer 2003. Survey methods were based on the standard Marine Nature Conservation Review (MNCR) techniques using in-situ identification of conspicuous species and description of habitat and community characteristics. The survey sites were chosen to represent the range of tide-swept rocky habitats present in each area; particularly concentrating on sites for which where there was no (or very limited) previous survey data. Recent multi-beam survey images aided selection of the sites in the Daugleddau Estuary, Milford Haven and West Pembrokeshire coast. Subtidal and intertidal components of the fieldwork were carried out separately. Further details of these standard methodologies are given in MNCR Rational and Methods (Hiscock 1996). Each site survey was recorded immediately on standard MNCR recording forms. Previous surveys have been undertaken in each of the four survey areas, by various parties and include some detail on the tidal rapids and reef systems. These include surveys carried out by CCW, JNCC, MCS Seasearch and others.
Dataset Reference Date (Publication)
2004-03-05
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Originator
  Coastal Assessment Liaison and Monitoring (CALM)
Ti Cara, Point Lane, Cosheston, Pembrokeshire, SA72 4UN, Wales
<!--No website -->
 

Extent

Extent

Geographic Extent
Wales (WLS)
N
W
E
S
Map representing the geographic extent of the dataset


 

Vertical Extent

Medin Extent Keyword

benthic boundary layer; water column

Vertical Extent

Minimum value (metres)
-28
Maximum value (metres)
5.2
Vertical CRS
 
 

Distribution

Format Type and Description
  • Documents ()

    Specification

    [A] Report is held as a paper and electronic version (MS Word, PDF). [B] Data is held as snapshot data in Access Format, GIS spatial data is held as TAB files. [C] Photographs of sites and many species present as .jpegs. Digital photos and many slides scanned, available at high resolution (4000dpi) as Tiff files (approx. 56MB each) Plus Catalogue of photographs (Excel). [D] Species and habitat data held in Marine Recorder (MRCCW80000000002, MRCCW80000000003, MRCCW80000000004, MRCCW80000000005).

 

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
Degree
false
Lineage

Marine biological surveys of seabed habitats and communities in four areas exposed to strong tidal currents around southwest and northwest Wales, were made in summer 2002 and summer 2003. Survey methods were based on the standard Marine Nature Conservation Review (MNCR) techniques using in-situ identification of conspicuous species and description of habitat and community characteristics. The survey sites were chosen to represent the range of tide-swept rocky habitats present in each area; particularly concentrating on sites for which where there was no (or very limited) previous survey data. Recent multi-beam survey images aided selection of the sites in the Daugleddau Estuary, Milford Haven and West Pembrokeshire coast. Subtidal and intertidal components of the fieldwork were carried out separately. Further details of these standard methodologies are given in MNCR Rational and Methods (Hiscock 1996). Each site survey was recorded immediately on standard MNCR recording forms. Previous surveys have been undertaken in each of the four survey areas, by various parties and include some detail on the tidal rapids and reef systems. These include surveys carried out by CCW, JNCC, MCS Seasearch and others.
 

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
  • marine surveys (intertidal & subtidal surveys) (littoral survey) (sublittoral surveys) (bathymetric survey) (see also marine monitoring and MNCR)
  • seashore (intertidal) (littoral) (see also beaches)
  • coastal survey (coastal monitoring)
  • coast (coasts) (coastal) (coastline) (maritime)
  • baseline monitoring
  • Pembrokeshire (county pre 1974)( county since 4/96)
  • North Wales
Type
Theme

Citation

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

Keywords

SeaDataNet Parameter Discovery Vocabulary
  • Habitat characterisation
  • Coastal geomorphology
Type
Theme

Citation

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

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Content Information

NRW Profile

Custom Elements

NRW Related Title

Survey of North Wales and Pembrokeshire tide influenced communities
 

Constraints

Constraints

Limitations on Public Access and Use

Restriction type
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

Part of this dataset is sensitive and restricted. The sensitive data is as follows Ostrea edulis and Palinurus elephas. Sensitive data must be kept confidential; general release is not permitted due to risk of harm to the environment or third parties. Sensitive data may only be released under an appropriate NRW Licence. Requests should be referred to NRW's Access to Information Officer. Data may be released freely if the sensitive records are removed in advance, or shown only at a coarser scale.
 

Use Constraints

Use constraints type
Other restrictions
Other constraints

© CNC/NRW 2004. Recipients may only re-use sensitive data in strict confidence under the terms of an appropriate NRW Licence. No publication or dissemination is permitted, except if sensitive records are removed in advance, or shown only at a coarser scale.
 
 
 

Metadata

Metadata

File Identifier
4f4c4942-4343-5764-6473-3836383238 XML
Metadata Language
English
Parent Identifier
Natural Resources Wales (NRW) Marine Benthic Species and Habitat Collation Held in Marine Recorder

NRW_DS114501
Resource type
Dataset
Metadata Date
2024-05-31T09:41:17.128Z
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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