Ffytoplancton
This data collates all the Phytoplankton samples collected within Wales from 2007 onwards by Natural Resources Wales and former Environment Agency Wales that are held within NRWs KiEco Database. This methodology is based on the principle that additional nutrients (especially nitrogen) can alter the amount of phytoplankton in transitional and coastal waters. Persistent and high counts of phytoplankton taxa are also seen as a measure of disturbance in the phytoplankton community. These surveys are conducted as part of on-going monitoring for legislative requirements and to meet organisational drivers. In addition, sites may be sampled for investigative work, or on an ad hoc basis.
Phytoplankton samples are taken in situ and 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. Further information is available from the UK-TAG WFD website.
For many of our marine survey techniques we record an NGR at the site because this acts as a central/representative location around which we collect lots of samples. An NGR is then also recorded against each of the samples to give a more accurate sampling location.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS124916
- Teitl Amgen
-
- Data Phytoplancton Cyrff Dŵr Newidiol ac Arfordirol y Cyfarwyddeb Fframwaith Dŵr
- Laith Metadata
- English
- Datganiad
-
Surveys are carried out by a range of survey methods, the data from one survey is not necessarily directly comparable to another. The user is recommended to check the survey method used in the data provided.
We do our best to avoid data quality problems, but as these datasets reflect the data we hold, they may contain errors
The data is provided as a set of related data tables due to the quantity and structure of the data. A basic understanding of relational data is assumed.
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.
- Gwybodaeth ychwanegol
-
https://www.wfduk.org/resources/tags/transitional-coastal-water-159/tags/phytoplankton-68
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2025-06-27
Ystod amser
- Dyddiad cychwyn
- 2007-01-03
- Dyddiad gorffen
- 2019-05-12
- Categori pwnc
-
- Biota
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Maint Fertigol
- Maint allweddair MEDIN
-
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
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Documents
(
)
- Math
-
Excel spreadsheets with species data
-
Documents
(
)
- Lleolwr Adnoddau
- View and Download Service ( WWW:LINK-1.0-http--link )
- Lleolwr Adnoddau
- Web Mapping Service ( OGC:WMS )
- Lleolwr Adnoddau
- DASSH ( WWW:LINK-1.0-http--link )
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
-
Surveys are carried out by a range of survey methods, the data from one survey is not necessarily directly comparable to another. The user is recommended to check the survey method used in the data provided.
We do our best to avoid data quality problems, but as these datasets reflect the data we hold, they may contain errors
The data is provided as a set of related data tables due to the quantity and structure of the data. A basic understanding of relational data is assumed.
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.
Allweddeiriau
Allweddair
Allweddair
-
NRW Thesaurus
-
- phytoplankton
- Water Framework Directive (WFD)
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2025-01-08
Allweddair
-
SeaDataNet Parameter Discovery Vocabulary
-
- Zoobenthos taxonomic abundance
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-06-19
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
-
Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313234393136 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2025-07-01T08:19:41.503Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0