Special Area of Conservation (SAC) Monitoring: Macrophyte Condition Assessment for the Afon Gwyrfai SAC (2007)
The Afon Gwyrfai Special Area of Conservation (SAC) and Llyn Cwellyn Site of Special Scientific Interest (SSSI) was notified in 2003 and is considered to be one of the best examples in the United Kingdom of an oligotrophic to mesotrophic river with submerged beds of aquatic plants, especially its Callitricho-Batrachion vegetation community. The purpose of this data capture was to undertake a Condition Assessment of the river macrophyte and river macrophyte-related attributes of the former Countryside Council for Wales CCW's Management Units 2, 5, 6 and 7 of the Afon Gwyrfai.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS110062
- Alternative Title
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- Asesiad o gyflwr macroffytau yn ACA Afon Gwyrfai
- Metadata Language
- English
- Lineage
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A Common Standards Monitoring Condition Assessment of Afon Gwyrfai SAC river was used to trial a novel 'macrophyte mapping' survey approach which could be used to complement Common Standards Monitoring and to aid and inform management decisions. This macrophyte mapping method involved walking the banks of the 2 km section and recording the channel flora observed and the major shifts in community composition. The aim of the mapping component was to produce a 'banded map' illustrating these shifts in community composition and structure.
- Dataset Reference Date (Publication)
- 2008-05-22
Temporal Extent
- Begin date
- 2007-08-20
- End date
- 2007-08-23
- Topic category
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- Biota
Extent
Extent
- Geographic Extent
- Wales (WLS)
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Distribution
- Format Type and Description
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Documents
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- Specification
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[A] Report: Microsoft Word and Adobe Portable Document Format versions of project report. [B] Raw data: Standard MS Excel River Macrophyte database, a series of River Habitat Survey recording forms as paper and scanned JPEG format images. [C] Mapinfo tables of survey sections, macrophyte mapping data (digital polygons). Macrophyte mapping data can be used to thematically map (Use Mapinfo Thematic Mapping function - seek advice from CCW GIS team) specific data fields. [D] Sketches from the Phase 1 habitat survey as sketches- as scanned JPEG format images. [E] Photos of CSM survey sites - Paper and digital [F] Record of landowner name and addresses - Existing CCW Contacts Database
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Documents
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
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A Common Standards Monitoring Condition Assessment of Afon Gwyrfai SAC river was used to trial a novel 'macrophyte mapping' survey approach which could be used to complement Common Standards Monitoring and to aid and inform management decisions. This macrophyte mapping method involved walking the banks of the 2 km section and recording the channel flora observed and the major shifts in community composition. The aim of the mapping component was to produce a 'banded map' illustrating these shifts in community composition and structure.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
- NRW Thesaurus
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- Common Standards Monitoring (CSM)
- macrophytes
- river Gwyrfai (afon Gwyrfai)
- monitoring (see specific types of monitoring eg. woodland monitoring)
- Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC)
- marine and freshwater inventory
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
- NRW Related Title
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Macrophyte condition assessment for the Afon Gwyrfai SAC
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
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© CNC/NRW and © Crown copyright 2008. 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
- 4f4c4942-4343-5764-6473-313130303632 XML
- Metadata Language
- English
- Parent Identifier
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Condition monitoring of Special Areas of Conservation (SACs) in Wales
NRW_DS110194
- Resource type
- Dataset
- Metadata Date
- 2024-05-31T09:22:21.538Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
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1.0