SAC Monitoring: Lamprey in the River Usk (2011)
River lamprey, Brook lamprey and Sea lamprey are listed in Annex II of the EU Habitats Directive (EU Directive on the Conservation of Natural Habitats of Wild Fauna and Flora 92/43/EEC). There are six rivers in Wales designated as Special Areas of Conservation (SACs) for lamprey, including the River Usk in South Wales. The Countryside Council for Wales and now Natural Resources Wales is responsible for monitoring the condition of lamprey species populations within SACs and to ensure the maintenance of favourable conservation status within designated sites. The main aim of this project is to undertake a condition assessment for the population attribute only for brook, river and sea lamprey designated features for the River Usk SAC for the second Habitats Directive monitoring reporting cycle (2007-2012). A total of 35 sites distributed within the Usk catchment. Only a few sites had optimal habitats and sub-optimal habitats were dominant throughout. Sampling was carried out between the 10th October and 16th November 2011. The data is used to assess the population attribute for all three lamprey species. The results of the four attributes outlined in the Common Standards Monitoring (CSM) Guidance for Freshwater Fauna give an indication of the overall condition assessment.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS115168
- Teitl Amgen
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- Lamprey Monitoring, River Usk 2011 - CCW – Science Report No. 11/8/6 CCW000800000000M
- Data gwaith monitro llysywod pendoll ar gyfer Afon Wysg 2011
- River Usk Population Attribute Condition Assessment for Brook, River and Sea Lamprey 2011
- Laith Metadata
- English
- Datganiad
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Work previously undertaken in 2004/2005. 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'. The sampling strategy for the monitoring programme for sea, river and brook lamprey followed the protocols developed for the LIFE in UK Rivers project (Harvey & Cowx, 2003). Quantative quadrat surveys were carried out in both optimal (very silty) and sub-optimal (more rocky) habitats. Electric fishing techniques were used inside a 1m2 quadrat to draw lamprey out of the silt rather than stunning and trapping them within the silt. Sampling of optimal habitats quadrats was done thee times whilst sub-optimal habitats were sampled once. The original data contains positive and negative samples.
- Gwybodaeth ychwanegol
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Rivers Ecologist, NRW Freshwater Monitoring Co-Coordinator, NRW Associated Report (Ffynnon DCT-12-523868) River Usk Population Attribute Condition Assessment for Brook, River and Sea Lamprey 2011. CCW Staff Science Report No. 11/8/6 CCW. Bangor.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2012-11-30
Ystod amser
- Dyddiad cychwyn
- 2011-10-10
- Dyddiad gorffen
- 2011-11-16
- Categori pwnc
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- Biota
Rhychwant
Rhychwant
- Hyd
- CASNEWYDD - NEWPORT
- Hyd
- TOR-FAEN - TORFAEN
- Hyd
- SIR FYNWY - MONMOUTHSHIRE
- Hyd
- POWYS - POWYS
))
Dosbarthiad
- Fformat - Math a Disgrifiad
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Database
()
- Math
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[A] Report in word and pdf format (Ffynnon Reference: DCT-12-523868) [B] Raw data in spreadsheet format as provided by EA. [C] Analysed worked-up data created by Heather [D] Report images including maps and histograms [E] Field survey photos as xls species [F] GIS layers in MapInfo format [G] Field notes in paper format [H] Data is held within Recorder 6 as Lamprey Monitoring, River Usk 2011 - CCW – Science Report No. 11/8/6 CCW000800000000M
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Database
()
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
Work previously undertaken in 2004/2005. 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'. The sampling strategy for the monitoring programme for sea, river and brook lamprey followed the protocols developed for the LIFE in UK Rivers project (Harvey & Cowx, 2003). Quantative quadrat surveys were carried out in both optimal (very silty) and sub-optimal (more rocky) habitats. Electric fishing techniques were used inside a 1m2 quadrat to draw lamprey out of the silt rather than stunning and trapping them within the silt. Sampling of optimal habitats quadrats was done thee times whilst sub-optimal habitats were sampled once. The original data contains positive and negative samples.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
- NRW Thesaurus
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- lampreys (river lamprey, brook lamprey and sea lamprey)
- lampetra fluviatilis
- river lamprey
- lampetra planeri
- brook lamprey
- petromyzon marinus
- sea lamprey
- Lampetra sp.
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2023-12-31
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
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River usk 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
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There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
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© 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. 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 CCW'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.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313135313638 XML
- Laith Metadata
- English
- Dynodydd Rhiant
-
Condition monitoring of Special Areas of Conservation (SACs) in Wales
NRW_DS110194
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-31T09:43:01.835Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0