Intertidal Monitoring of Sabellaria Reef in Cardigan Bay Special Area of Conservation (SAC) 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. Honeycomb reef worm Sabellaria alveolata is a sedentary, tube-dwelling polychaete most commonly found on rocky substrata in the lower shore and shallow subtidal zones of marine and estuarine areas. The honeycomb reef worm is a UK BAP Priority Habitat (BAP habitats are now Habitats of Principal Importance/Priority Habitats). In Cardigan Bay SAC specific areas of interest include the biogenic Sabellaria reef. Sabellaria reef is considered vulnerable to coastal development, sea defence construction and heavy trampling. The purpose of this data capture was to re-survey the quadrat monitoring sites established in 2007. The descriptive transect surveys are not repeated in 2008. Data quality and confidence is considered high as all survey completed by professional and experienced marine field surveyors.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS115072
- Alternative Title
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- 2008 CCW / ASML Cardigan Bay SAC Sabellaria Reef Monitoring MRCCW16300000016
- Monitro Rhynglanwol: Sabellaria alveolata yn ACA Bae Caerfyrddin 2008
- Metadata Language
- English
- Lineage
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Surveys of Sabellaria reefs in the SAC were carried out for CCW in 2004 (Boyes et al. 2008). Additional mapping of Sabellaria reef extent at Aberaeron was carried out by CMACS Ltd. (sub-contracted by Atkins Ltd.) In August 2006 as part of an Environmental Assessment for proposed Aberaeron North Beach Coastal Defence Work (unpublished data provided by Atkins Ltd.). In 2007, ASML and CCW further developed Intertidal SAC monitoring methodologies for monitoring the Sabellaria reefs and monitoring sites were established and surveyed in May 2007 (Moore 2009).The extent and measure of the quality of the Sabellaria reef was evaluated using a GPS track and quadrat surveys, respectively. Sabellaria density, physical attributes and other conspicuous species were recorded from replicate quadrat stations to provide a repeatable method of evaluation.
- Dataset Reference Date (Publication)
- 2010-03-31
Extent
Extent
- Geographic Extent
- SIR CEREDIGION - CEREDIGION
))
Vertical Extent
- Medin Extent Keyword
- benthic boundary layer
Distribution
- Format Type and Description
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Documents
()
- Specification
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[A] Digital versions of the contract report: Microsoft Word document(s); and an equivalent Adobe Portable Document Format version. [B] Excel Spreadsheets of data: - Card 2008 Data Sabellaria and Rockpools v2.xls [C] Marine Recorder file [MRCCW16300000016] [D] A series of MapInfo GIS layers in MapInfo Native format (Tables):
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Documents
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
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Surveys of Sabellaria reefs in the SAC were carried out for CCW in 2004 (Boyes et al. 2008). Additional mapping of Sabellaria reef extent at Aberaeron was carried out by CMACS Ltd. (sub-contracted by Atkins Ltd.) In August 2006 as part of an Environmental Assessment for proposed Aberaeron North Beach Coastal Defence Work (unpublished data provided by Atkins Ltd.). In 2007, ASML and CCW further developed Intertidal SAC monitoring methodologies for monitoring the Sabellaria reefs and monitoring sites were established and surveyed in May 2007 (Moore 2009).The extent and measure of the quality of the Sabellaria reef was evaluated using a GPS track and quadrat surveys, respectively. Sabellaria density, physical attributes and other conspicuous species were recorded from replicate quadrat stations to provide a repeatable method of evaluation.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
- NRW Thesaurus
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- intertidal
- Cardigan Bay SAC
- sabellaria alveolata
- polychaete worms
- honeycomb worm
- reef
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Keywords
- SeaDataNet Parameter Discovery Vocabulary
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- Habitat characterisation
- Habitat extent
- Type
- Theme
Citation
- Date (Revision)
- 2021-01-06
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
- NRW Related Title
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Intertidal SAC monitoring Cardigan Bay SAC May 2008
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. NRW may release, publish or disseminate it freely.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
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© CNC/NRW 2010. 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
- File Identifier
- 4f4c4942-4343-5764-6473-313135303732 XML
- Metadata Language
- English
- Parent Identifier
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Across Wales Intertidal Monitoring Survey
NRW_DS109834
- Resource type
- Dataset
- Metadata Date
- 2024-12-09T12:33:27.542Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
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1.0