Milford Haven and Daugleddau Estuary Tidally Exposed Seabed and Shores (2002)
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. In addition to this the Habitats Directive (1992) requires the establishment of a European network of important high-quality conservation sites, Special Areas of Conservation (SACs). The Habitats Directive identifies Reefs as a major category of habitats that should be considered for inclusion in SACs. Tidal rapids not only forms part of the reef environments classification but is also highlighted as an important site under the UKBAP habitats list. Tidal rapids is used to describe a broad range of high energy environments including deep tidal streams and tide-swept habitats. JNCC’s Marine Nature Conservation Review (MNCR) defined rapids as ‘strong tidal streams resulting from a constriction in the coastline at the entrance to, or within the length of, an enclosed body of water such as a sea loch. Depth is usually shallower than five metres. The data collected during this survey is being used to help define the conservation objectives for the cSAC reef features in Wales and to inform management of this feature. One of the actions listed in the Habitat Action Plan for tidal rapids is to, complete survey and recording of the extent, quality and composition of the habitats and communities of tidal rapids.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS87129
- Alternative Title
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- 2002 CCW/CALM Milford Haven and Daugleddau Estuary tidally exposed seabed and shores MRCCW80000000003
- Gwely'r mor a'r glannau a ddinoethir gan y llanw yn Aberdaugleddau (2002)
- Metadata Language
- English
- Lineage
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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 this areas, by various parties and include some detail of the 'Tidal Rapids' and reef systems. These include surveys carried out by former Countryside Council for Wales (CCW), JNCC, Seasearch and various others.
- Dataset Reference Date (Publication)
- 2004-03-05
Temporal Extent
- Begin date
- 2002-08-30
- End date
- 2002-10-09
- Topic category
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- Biota
- Oceans
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Vertical Extent
- Medin Extent Keyword
- water column
Vertical Extent
- Minimum value (metres)
- -22.5
- Maximum value (metres)
- 5.2
- Vertical CRS
Distribution
- Format Type and Description
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Documents
(
)
- Specification
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[A] Published report - Paper and electronic version (MS Word) [B] Raw Data - MS Excel & Marine Recorder v5 (MRCCW80000000003). Original data forms in hardcopy. [C] Photos of sites and many species present - Digital photos and many slides scanned, available at high resolution (4000dpi) as Tiff files (aprox. 56MB each) [D] Plus Catalogue of photographs (Excel)
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Documents
(
)
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
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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 this areas, by various parties and include some detail of the 'Tidal Rapids' and reef systems. These include surveys carried out by former Countryside Council for Wales (CCW), JNCC, Seasearch and various others.
Keywords
Keywords
Keywords
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NRW Thesaurus
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- coast (coasts) (coastal) (coastline) (maritime)
- marine surveys (intertidal & subtidal surveys) (littoral survey) (sublittoral surveys) (bathymetric survey) (see also marine monitoring and MNCR)
- seashore (intertidal) (littoral) (see also beaches)
- marine monitoring (see also marine surveys)
- coastal survey (coastal monitoring)
- Daugleddau estuary
- Milford Haven
- marine environment (marine habitats) (seas) (oceans) (maritime environment)
- Type
- Theme
Citation
- Date (Publication)
- 2024-06-19
Keywords
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SeaDataNet Parameter Discovery Vocabulary
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- Coastal geomorphology
- Habitat characterisation
- Type
- Theme
Citation
- Date (Publication)
- 2024-06-19
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
- NRW Related Title
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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
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Part of this dataset is sensitive and restricted. The sensitive data is as follows; Ostrea edulis. 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 a CCW Restricted Release Licence. Requests should be referred to CCW'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
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© CCGC/CCW 2004. Recipients may only re-use sensitive data in strict confidence under the terms of a CCW RPSI 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
- 4f4c4942-4343-5764-6473-3837313239 XML
- Metadata Language
- English
- Parent Identifier
-
Survey of North Wales and Pembrokeshire tide influenced communities
NRW_DS86828
- Resource type
- Dataset
- Metadata Date
- 2024-12-13T11:48:04.537Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
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1.0