Intertidal Monitoring of Eelgrass (Zostera nolitii) Beds at Angle Bay in Pembrokeshire Marine Special Areas of Conservation (SACs) 2008
The Habitats Directive establishes that the management of Special Areas of Conservation (SACs) should aim to achieve the favourable conservation status of habitat and species features listed within its Annex I and Annex II. For SACs in Wales, the Countryside Council for Wales (CCW) is therefore required to report on a regular basis on whether features are in favourable conservation status. For SACs in Wales Zostera noliti is a sub-feature of the Annex II habitat, mudflats and sandflats not covered by seawater at high tide. 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.
This data was captured to support reporting on conservation status of the Welsh Special Areas of Conservation (SACs) sub-feature eelgrass, zostera noltii. Pembrokeshire Marine SAC was selected for eight Habitats Directive Annex I habitat types and five Annex II species. The aim of this survey was to initiate eelgrass Zostera noltii monitoring at Angle Bay in Milford Haven.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS115176
- Alternative Title
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- 2008 CCW / ASML Pembrokeshire Marine SAC Zostera noltii Monitoring MRCCW16300000015
- Metadata Language
- English
- Lineage
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This work contributes on an ongoing programme of intertidal monitoring work across Wales during 2004 and 2005. The area colonised by Zostera noltii in Angle Bay was mapped using portable GPS units. Based on the map obtained, a grid of 112 sampling stations was created, each being 50 m apart. The percentage cover of seagrass was estimated in 0.25 m2 quadrats placed each station and various other features were also recorded. These included the presence and abundance of cockles, any evidence of bait digging and other biota present. There is a high confidence rating for this dataset as all work undertaken by professional scientific biologist. This work contributes on an ongoing programme of intertidal monitoring work across Wales during 2004/2005.
- Dataset Reference Date (Publication)
- 2012-12-31
Temporal Extent
- Begin date
- 2008-09-04
- End date
- 2008-09-05
- Topic category
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- Biota
Extent
Extent
- Geographic Extent
- SIR BENFRO - PEMBROKESHIRE
))
Vertical Extent
- Medin Extent Keyword
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benthic boundary layer
Distribution
- Format Type and Description
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Documents
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)
- Specification
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[A] The final report in Microsoft Word and Adobe PDF formats. [B] A series of GIS layers on which the maps in the report are based [C] Habitat and species data held in Marine Recorder [MRCCW16300000015] [D] Habitat and species data held in xls spreadsheets [E] A full set of images produced in jpg format
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Documents
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)
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
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This work contributes on an ongoing programme of intertidal monitoring work across Wales during 2004 and 2005. The area colonised by Zostera noltii in Angle Bay was mapped using portable GPS units. Based on the map obtained, a grid of 112 sampling stations was created, each being 50 m apart. The percentage cover of seagrass was estimated in 0.25 m2 quadrats placed each station and various other features were also recorded. These included the presence and abundance of cockles, any evidence of bait digging and other biota present. There is a high confidence rating for this dataset as all work undertaken by professional scientific biologist. This work contributes on an ongoing programme of intertidal monitoring work across Wales during 2004/2005.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
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NRW Thesaurus
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- Intertidal monitoring
- seagrasses (see also potamogetonaceae and hydrocharitaceae)
- intertidal
- zostera
- Pembrokeshire Marine SAC
- zostera noltii
- posidoniaceae
- Type
- Theme
Citation
- Date (Publication)
- 2024-06-19
Keywords
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SeaDataNet Parameter Discovery Vocabulary
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- Macroalgae and seagrass taxonomy-related counts
- Habitat extent
- Type
- Theme
Citation
- Date (Publication)
- 2024-06-19
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
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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There are no access restrictions to this data. CCW may release, publish or disseminate it freely.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
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© CCGC/CCW 2012 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 CCW'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
- File Identifier
- 4f4c4942-4343-5764-6473-313135313736 XML
- Metadata Language
- English
- Parent Identifier
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Across Wales Intertidal Monitoring Survey
NRW_DS109834
- Resource type
- Dataset
- Metadata Date
- 2024-12-09T14:06:18.435Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
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1.0