Special Area of Conservation (SAC) Monitoring: Macrophyte Condition Assessment for the Afon Gwyrfai SAC (2007)

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  • wel
  • All

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

Dynodydd
Identifier
NRW_DS110062
Teitl Amgen
Alternative Title
  • Asesiad o gyflwr macroffytau yn ACA Afon Gwyrfai
Laith Metadata
Metadata Language
English
Lineage

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.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2008-05-22
Perchennog
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Scott Wilson Ltd
16 Priestgate, Peterborough, Cambridgeshire, PE1 1JA
http://www.scottwilsongroup.com
 

Extent

Extent

Hyd
Geographic Extent
Wales (WLS)
N
W
E
S
Map representing the geographic extent of the dataset


 
 

Distribution

Fformat - Math a Disgrifiad
Format Type and Description
  • Documents ()

    Specification

    [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

 

Quality

Ansawdd Data
Data quality

Cwmpas Ansawdd
Quality Scope
Dataset
Dataset
Cydymffurfiad
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
Degree
false
Lineage

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

Allweddair
Keywords

GEMET - INSPIRE themes, version 1.0
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair
Keywords

NRW Thesaurus
  • 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
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2023-12-31
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords
 

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Gwybodaeth Cynnwys
Content Information

Proffil CNC
NRW Profile

Elfennau CNC
Custom Elements

NRW Related Title

Macrophyte condition assessment for the Afon Gwyrfai SAC
 

Constraints

Constraints

Limitations on Public Access and Use

Math o Gyfyngiad
Restriction type
Other restrictions
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

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

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
Other restrictions
Other constraints

© 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

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313130303632 XML
Laith Metadata
Metadata Language
English
Parent Identifier
Condition monitoring of Special Areas of Conservation (SACs) in Wales

NRW_DS110194
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2024-05-31T09:22:21.538Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
pointOfContact
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 
 

Publishing Body

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