Data Monitro Llysywod Afon Dyfrdwy (2011)
River lamprey, brook lamprey, and sea lamprey are listed in Annex II of the EU Habitats Directive (Council Directive 92/43/EEC on the Conservation of Natural Habitats and of Wild Fauna and Flora). Six rivers in Wales, including the Afon Tywi in West Wales, are designated as Special Areas of Conservation (SACs) for lamprey species.
Natural Resources Wales is responsible for monitoring the condition of lamprey populations within SACs and ensuring the maintenance of favourable conservation status at designated sites. The data, originally collected under contract for the former Countryside Council for Wales, are used to assess the population attributes of all three lamprey species.
Sampling was carried out between 5 October and 22 November 2011. A total of 30 survey sites were selected across the Tywi catchment between Llandovery and Carmarthen.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS114970
- Teitl Amgen
-
- Lamprey Monitoring, Tywi Catchment 2011 - CCW - Staff Science Report 11/8/5 CCW000800000000B
- Afon Tywi Population Attribute Condition Assessment for Brook, River and Sea Lamprey 2011
- Laith Metadata
- English
- Datganiad
-
Field work was conducted by Environment Agency staff using standard electrofishing methodologies. A condition assessment is made using the JNCC 'Common Standards Monitoring (CSM) Guidance for Freshwater Fauna'. Confidence in this dataset is high.
- Gwybodaeth ychwanegol
-
Ffynnon Reference Number: DCT-12-234579 Thomas, RH. and Garrett, H. (2012). Afon Tywi Population Attribute Condition Assessment for Brook, River and Sea Lamprey 2011. CCW Staff Science Report No 11.8/5.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2012-07-31
Ystod amser
- Dyddiad cychwyn
- 2011-11-05
- Dyddiad gorffen
- 2011-11-22
- Categori pwnc
-
- Biota
Rhychwant
Rhychwant
- Hyd
- SIR DDINBYCH - DENBIGHSHIRE
- Hyd
- SIR Y FFLINT - FLINTSHIRE
))
Dosbarthiad
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Documents
(
Unknown
)
- Math
-
Microsoft Word report and PDF report
-
Binary
(
Unknown
)
- Math
-
Excel workbook containing statistics and results
-
Geographic Information System
(
Unknown
)
- Math
-
MapInfo GIS layers
-
Image
(
Unknown
)
- Math
-
JPEG images (maps, histograms, scans, field notes)
-
Documents
(
Unknown
)
- Math
-
Paper field notes
-
Database
(
Unknown
)
- Math
-
Recorder species dataset
-
Documents
(
Unknown
)
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Cydymffurfiad
- 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
- Eglurhad
-
This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Gradd
- false
- Datganiad
-
Field work was conducted by Environment Agency staff using standard electrofishing methodologies. A condition assessment is made using the JNCC 'Common Standards Monitoring (CSM) Guidance for Freshwater Fauna'. Confidence in this dataset is high.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
-
NRW Thesaurus
-
- lampetra fluviatilis
- petromyzon marinus
- sea lamprey
- lampreys (river lamprey, brook lamprey and sea lamprey)
- river lamprey
- Dee estuary
- lampetra planeri
- brook lamprey
- Lampetra sp.
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2026-08-27
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
-
Afon tywi population attribute condition assessment for brook, river and sea lamprey 2011
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
-
There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© CNC/NRW 2011 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.
Datganiad Priodoli
- Cyfyngiadau eraill
-
Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.
Math o Drwydded
- Cyfyngiadau eraill
- Open Government Licence
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313134393730 XML
- Laith Metadata
- English
- Dynodydd Rhiant
-
Freshwater River lamprey (Lampetra fluviatilis), Brook lamprey (Lampetra planeri) and Sea lamprey (Petromyzon marinus) Survey Data
NRW_DS116345
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2026-10-01T13:57:06.121Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0