SAC Monitoring: Lamprey Monitoring for the Afon Cleddau (2012)
River lamprey (Lampetra fluviatilis), Brook lamprey (Lampetra planeri), and Sea lamprey (Petromyzon marinus) are listed in the Annex II of EU Habitats Directive (EU Directive on the Conservation of Natural Habitats of Wild Fauna and Flora 92/43/EEC) and 6 rivers in Wales are designated as Special Areas of Conservation (SAC) for this feature. The River Cleddau is one of the westernmost rivers in Britain and can be broadly divided into Eastern and Western arms. Assessments of species composition, distribution, abundance and size class composition are of particular interest as an indication of Condition Assessment. The sampling strategy for the monitoring programme for sea, river and brook lamprey followed the protocols developed for the LIFE in UK Rivers project, was aimed at undertaking a condition assessment for the population of brook, river and sea lamprey designated features for the second Habitats Directive monitoring reporting cycle (2007-2012). 12 sites in the Eastern Cleddau and 13 sites in the Western Cleddau, Pembrokeshire.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS115378
- Teitl Amgen
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- Afonydd Cleddau Population Attribute Condition Assessment for Brook, River and Sea Lamprey 2012
- Lamprey Monitoring, Cleddau Catchments 2012 - CCW - CCW Staff Science Report No. 13/8/1 CCW000800000000O
- Data'n ymwneud a monitro llysywod pendoll ar gyfer Afon Cleddau 2012
- Laith Metadata
- English
- Datganiad
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Lamprey populations and condition assessment was previously carried out by CCW in 2003 (Harvey and Cowx, 2003) and 2005 (Campbell et al., 2005). The field survey was conducted in 2012 by Environment Agency staff using the standard electrofishing methodology. A condition assessment is made using the JNCC Common Standards Monitoring Guidance for Freshwater Fauna. Quantitative 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. Confidence in this dataset is high.
- Gwybodaeth ychwanegol
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Freshwater Monitoring Ecologist, NRW Ffynnon Reference NRW-13-008997 Afonydd Cleddau Population Attribute Condition Assessment for Brook, River and Sea Lamprey 2012 Garrett. H., Hatton-Ellis. T., Thomas. R. CCW Staff Science Report Number 13/8/1
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2013-03-31
Ystod amser
- Dyddiad cychwyn
- 2012-07-10
- Dyddiad gorffen
- 2013-07-16
- Categori pwnc
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- Biota
Rhychwant
Rhychwant
- Hyd
- SIR BENFRO - PEMBROKESHIRE
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Dosbarthiad
- Fformat - Math a Disgrifiad
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Database
Database
()
- Math
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[A] The final report in Microsoft Word and Adobe PDF formats.(NRW-13-008997) [B] A full set of images produced for the report in JPEG format. [C] A series of GIS layers on which the maps in the report are based [D] A set of Microsoft excel sheets containing raw data and workbook containing analysis in .xls format [E] Field notes in paper format held in (ex-EA) Llandarcy Office and copy held in Maes Y Ffynnon with Tristan Hatton Ellis [F] Data is held within Recorder 6 as Survey Number; Lamprey Monitoring, Cleddau Catchments 2012 - CCW - CCW Staff Science Report No. 13/8/1 CCW000800000000O.
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Database
Database
()
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
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Lamprey populations and condition assessment was previously carried out by CCW in 2003 (Harvey and Cowx, 2003) and 2005 (Campbell et al., 2005). The field survey was conducted in 2012 by Environment Agency staff using the standard electrofishing methodology. A condition assessment is made using the JNCC Common Standards Monitoring Guidance for Freshwater Fauna. Quantitative 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. Confidence in this dataset is high.
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)
- Western Cleddau river
- Afonydd Cleddau
- Eastern Cleddau River
- Special Areas of Conservation (SAC) - SAC monitoring
- 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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Afonydd Cleddau population attribute condition assessment for brook, river and sea lamprey 2012
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 2012 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.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313135333738 XML
- Laith Metadata
- English
- Dynodydd Rhiant
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Freshwater River lamprey (Lampetra fluviatilis), Brook lamprey (Lampetra planeri) and Sea lamprey (Petromyzon marinus) Survey Data
NRW_DS116345
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-31T09:42:41.306Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
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1.0