Juvenile salmonid survey data for Special Area of Conservation (SAC) rivers.
The Environment Agency monitors juvenile salmon and trout populations nationally by fishing a limited number of sites on an annual basis to obtain meaningful temporal data for trends in fish populations. A more comprehensive spatial monitoring survey programme is carried out every 5 years to investigate differences between groups of sites within particular river catchments. Other species caught in the surveys are also recorded e.g. bullhead, lampreys, eels etc. This dataset contains juvenile salmon data for the 8 rivers designated as Special Areas of Conservation (SAC) in Wales. The purpose of this dataset is to obtain temporal data for trends in fish populations and to investigate differences between groups of sites within river catchments.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS110240
- Teitl Amgen
-
- Data'r arolwg salmonidau ifanc ar gyfer ACA afonydd
- Laith Metadata
- English
- Datganiad
-
A limited number of sites are fished on an annual basis whilst a more comprehensive spatial monitoring survey programme is carried out every 5 years.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2007-12-31
Ystod amser
- Dyddiad cychwyn
- 2007-12-31
- Dyddiad gorffen
- 1985-01-01
- Categori pwnc
-
- Environment
- Biota
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Documents
Documents
()
- Math
-
[A] Excel spreadsheets [B] MapInfo tables
-
Documents
Documents
()
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
A limited number of sites are fished on an annual basis whilst a more comprehensive spatial monitoring survey programme is carried out every 5 years.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
- NRW Thesaurus
-
- Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC)
- Special Areas of Conservation (SAC) - SAC monitoring
- river Cleddau
- river Dee (afon Dyfrdwy)
- River Eden
- river Teifi (Afon Teifi)
- river Tywi (afon Tywi)
- River Usk
- River Wye (Afon Gwy)
- rivers (see also specific river names)
- river Gwyrfai (afon Gwyrfai)
- Atlantic salmon
- salmo salar
- salmon (see also individual species)
- salmonidae
- trout
- salmo trutta
- fish (fishes) (see also specific species)
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2023-12-31
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
-
This dataset is wholly owned by Environment Agency. Enquirers are advised to obtain a copy from the owner/originator directly, rather than NRW. NRW may NOT publish or disseminate it in its entirety.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© Environment Agency NRW does NOT grant permission to third parties to re-use or disseminate this dataset.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313130323430 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-31T09:39:57.579Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0