WFD TRaC Waterbody Phytoplankton data; Wales 2007 – 2019 (ongoing)

This data collates all the Phytoplankton samples collect within Wales from 2007 onwrads that have been used for thr 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. (2 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: http://www.wfduk.org/.