Intertidal Monitoring of Sabellaria reef in Pen Llyn a'r Sarnau Special Areas of Conservation (SACs) 2009
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). CCW developed a programme of intertidal monitoring work across Wales during 2004 and 2005. These surveys were managed and implemented for CCW by the Institute of Estuarine and Coastal Studies (IECS, University of Hull). These projects focused on a wide range of sensitive habitats such as Zostera, muddy gravels, caves, rock pools, algal dominated rocky shores, Sabellaria reefs, under-boulders, and various rare habitats and species. Aquatic Survey and Monitoring Ltd. (ASML) have been contracted by CCW to continue development and management of the intertidal monitoring programme for each marine SAC for the period 2006 to 2011, working as a team with CCW HQ and CCW Regional staff.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS114388
- Alternative Title
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- 2009 CCW / ASML Pen Llyn a'r Sarnau SAC Sabellaria Monitoring MRCCW1630000001F
- Gwaith Monitro Rhynglanwol - riff Sabellaria yn ACA Pen Llyn a'r Sarnau 2009
- Metadata Language
- English
- Lineage
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At each transect location, surveyors walked down the transect using the GPS as described above and made notes on habitat, community and condition / age of the Sabellaria reef. Condition of Sabellaria reef was recorded using a defined 7 point scale. The age of the Sabellaria reef was recorded using a defined 4 point scale. GPS fixes were taken along the transect to mark changes in Sabellaria reef condition and to mark the top and bottom of the transect (often the water line). Photographs were taken to illustrate habitat and condition of the Sabellaria reef.
- Dataset Reference Date (Publication)
- 2011-05-31
Temporal Extent
- Begin date
- 2009-07-08
- End date
- 2009-07-10
- Topic category
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- Biota
Extent
Extent
- Geographic Extent
- GWYNEDD - GWYNEDD
))
Vertical Extent
- Medin Extent Keyword
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benthic boundary layer
Distribution
- Format Type and Description
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Documents
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] MapInfo GIS layer in MapInfo Native format (Tables): - Position of the sample stations - Translations from the above MapInfo Tables are retained in ESRI Shapefile and MapInfo Interchange formats. [C] Excel spreadsheets with station details and species data [D] Photographs of the stations [E] Marine Recorder file
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Documents
Documents
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
-
At each transect location, surveyors walked down the transect using the GPS as described above and made notes on habitat, community and condition / age of the Sabellaria reef. Condition of Sabellaria reef was recorded using a defined 7 point scale. The age of the Sabellaria reef was recorded using a defined 4 point scale. GPS fixes were taken along the transect to mark changes in Sabellaria reef condition and to mark the top and bottom of the transect (often the water line). Photographs were taken to illustrate habitat and condition of the Sabellaria reef.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
- NRW Thesaurus
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- marine ecology (intertidal ecology)(subtidal ecology) (littoral communities) (intertidal habitat)(see also seashore)
- Special Areas of Conservation (SAC) - SAC monitoring
- sabellaria alveolata
- polychaete worms
- honeycomb worm
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Keywords
- SeaDataNet Parameter Discovery Vocabulary
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- Habitat characterisation
- 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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Across Wales intertidal SAC monitoring Pen Llyn a'r Sarnau SAC July 2009
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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The following data is considered OS derived data and is therefore jointly owned by NRW and the Ordnance Survey. NRW may release, publish or disseminate this data freely; providing recipients are made aware of use restrictions (See general use restrictions).
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
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© CNC/NRW and © Crown copyright 2011. All rights reserved. Natural Resources Wales, AC0000849444 Third parties seeking to re-use this data require a Licence issued by NRW. It allows re-use, reproduction and dissemination in any format or medium but only for non-commercial purposes, according to the terms and conditions of the Licence. Those seeking commercial re-use require a commercial licence available from the OS.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313134333838 XML
- Metadata Language
- English
- Parent Identifier
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Natural Resources Wales (NRW) Marine Benthic Species and Habitat Collation Held in Marine Recorder
NRW_DS114501
- Resource type
- Dataset
- Metadata Date
- 2024-05-31T09:27:33.637Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
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1.0