Water Framework Directive (WFD) TRaC Waterbody Phytoplankton data
This data collates all the Phytoplankton samples collected within Wales from 2007 onwards that have been used for the WFD TRaC Phytoplankton assessment tool. This methodology is based on the principle that additional nutrients (especially nitrogen) can alter the amount of phytoplankton in transitional waters. Persistent and high counts of phytoplankton taxa are also seen as a measure of disturbance in the phytoplankton community. Phytoplankton samples are usually sent to a specialist marine contractor for Species Identity and abundance (two labs have been used in this time period; CEFAS 2007 – 2009 & APEM 2010 – onwards). Phytoplankton samples are analysed (identified and counted) using the Utermöhl method. Phytoplankton cells are identified to the lowest practical taxonomic level possible. UK WFD authorities use a revised phytoplankton list (refer to the relevant WFD Agency for the current list). The resultant data is processed through a phytoplankton tool to provide a phytoplankton assessment that can be used to WFD Classification of TraC water bodies. Further information is available from the UK-TAG WFD website.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS124916
- Teitl Amgen
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- Data Phytoplancton Cyrff Dŵr Newidiol ac Arfordirol y Cyfarwyddeb Fframwaith Dŵr
- Laith Metadata
- English
- Datganiad
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The change in analytical lab in 2010 resulted in the new laboratory reporting increased abundances of species because of the more high-powered microscopes available. There were also inconsistencies in recording Phaeocystis as either cell counts or colony counts (colony counts are not used by the tool).
- Gwybodaeth ychwanegol
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https://www.wfduk.org/resources/tags/transitional-coastal-water-159/tags/phytoplankton-68
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2021-03-24
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Maint Fertigol
- Maint allweddair MEDIN
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water column boundary layer
Maint Fertigol
- Gwerth lleiaf
- -2
- Gwerth uchaf
- 0
- System Gyfeirio Cydlynu Fertigol
- urn:ogc:def:datum:EPSG::5100 Sea Level depth is unadjusted and does not take into account tidal height
Dosbarthiad
- Fformat - Math a Disgrifiad
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-
Documents
()
- Math
-
Excel spreadsheets with species data
-
Documents
()
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
The change in analytical lab in 2010 resulted in the new laboratory reporting increased abundances of species because of the more high-powered microscopes available. There were also inconsistencies in recording Phaeocystis as either cell counts or colony counts (colony counts are not used by the tool).
Allweddeiriau
Allweddair
Allweddair
- NRW Thesaurus
-
- Water Framework Directive (WFD)
- phytoplankton
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2023-12-31
Allweddair
- SeaDataNet Parameter Discovery Vocabulary
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- Zoobenthos taxonomic abundance
- Math
- Theme
Dyfyniad
- Dyddiad (Adolygu)
- 2021-01-06
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
-
There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© CNC/NRW Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
Datganiad Priodoli
- Cyfyngiadau eraill
- Open Government Licence (OGL)
Math o Drwydded
- Cyfyngiadau eraill
- Open Government Licence (OGL)
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313234393136 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-30T14:09:08.427Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0