Intertidal Monitoring of Eelgrass Zostera noltii Beds in the Menai Strait and Conwy Bay Special Areas of Conservation (SACs) 2005
The Habitats Directive requires the condition of SAC features to be assessed periodically to determine whether favourable conservation status is being maintained. Within the Menai Strait and Conwy Bay SAC, Zostera noltii beds represent an important intertidal habitat supporting a diverse biological community and providing important ecological functions within sheltered coastal environments.
The 2005 survey continued the monitoring programme established in 2004 and reassessed the Zostera noltii beds at Foryd Bay and Traeth Lafan. The survey reviewed the extent, density and condition of seagrass beds, recorded associated epiphytes, ephemeral algae and conspicuous fauna, documented evidence of damage and disease, and further evaluated monitoring techniques developed during the previous year's baseline study. The survey contributed to the refinement of condition assessment methods and improved understanding of the conservation status of intertidal seagrass habitats within the SAC.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS161663
- Alternative Title
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- 2005 CCW / IECS Menai Strait and Conwy Bay SAC Zostera noltii Traeth Lafan (MRCCW300000000A5)
- Metadata Language
- English
- Lineage
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Field surveys were undertaken during suitable low-water periods using the methodology developed and tested during the baseline survey programme. Differential GPS was used to record seagrass bed boundaries and sampling locations across both survey areas.
Sampling stations were established along predefined transects and quadrat-based surveys were undertaken to record Zostera noltii cover, associated biological communities, epiphyte occurrence, algal growth, substratum characteristics and indicators of habitat condition. Photographic records and positional information were collected throughout the survey. Resulting field observations were compiled within GIS datasets and used to assess seagrass distribution, habitat condition and the effectiveness of monitoring techniques developed for future SAC condition monitoring.
- Additional Information
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Boyes, Mazik (2005) Intertidal Monitoring of Zostera noltii in the Menai Strait & Conwy Bay SAC 2005
- Dataset Reference Date (Creation)
- 2016-12-07
- Dataset Reference Date (Revision)
- 2017-08-31
Temporal Extent
- Begin date
- 2005-05-30
- End date
- 2005-05-30
- Topic category
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- Biota
))
Distribution
- Format Type and Description
-
-
Database
(
Marine Recorder Online - Version 2.09.02
)
- Specification
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Marine Recorder
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Database
(
Marine Recorder Online - Version 2.09.02
)
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
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This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Degree
- false
- Lineage
-
Field surveys were undertaken during suitable low-water periods using the methodology developed and tested during the baseline survey programme. Differential GPS was used to record seagrass bed boundaries and sampling locations across both survey areas.
Sampling stations were established along predefined transects and quadrat-based surveys were undertaken to record Zostera noltii cover, associated biological communities, epiphyte occurrence, algal growth, substratum characteristics and indicators of habitat condition. Photographic records and positional information were collected throughout the survey. Resulting field observations were compiled within GIS datasets and used to assess seagrass distribution, habitat condition and the effectiveness of monitoring techniques developed for future SAC condition monitoring.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
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NRW Thesaurus
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- Menai Strait and Conwy Bay SAC
- Zostera bed, extent quadrats
- Marine Recorder
- Type
- Theme
Citation
- Date (Publication)
- 2026-08-27
Keywords
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SeaDataNet Parameter Discovery Vocabulary
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- Macroalgae and seagrass taxonomy-related counts
- Type
- Theme
Citation
- Date (Publication)
- 2024-06-19
Spatial Reference System
- Code
- WGS 84 (EPSG:4326)
Content
Content Information
NRW Profile
Custom Elements
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- noLimitations
Access Constraints Text
- Other constraints
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There are no access restrictions on 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 Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
Attribution Statement
- Other constraints
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Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.
Licence
- Other constraints
- Open Government Licence
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313631363633 XML
- Metadata Language
- English
- Parent Identifier
-
Across Wales Intertidal Monitoring Survey
NRW_DS109834
- Resource type
- Dataset
- Metadata Date
- 2026-10-16T14:48:04.173Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0