Freshwater Macrophyte Survey Data

The habitat 'H3260 Water Courses of Plain to Submontane Levels with the Ranunculion fluitantis and Callitricho-batrachion Vegetation' (henceforth 'Ranunculion habitat') is listed in Annexe I of the EU Habitat Directive as a habitat of European Importance. Four rivers in Wales, the Afon Gwyrfai, Afon Teifi, River Dee and River Wye are considered of European importance for this habitat type (Joint Nature Conservation Committee (JNCC)’, 2013). A gap analysis of available data has indicated that there is a shortage of recent information on macrophyte community composition and extent in the Teifi and Upper Wye catchments. Therefore, these catchments have formed the focus of this study and data has been collected and analysed from these areas to determine whether the performance indicators for macrophyte community composition and extent for these rivers pass the required standard for extent and quality. This dataset comprises of a survey entered into Recorder 6 which have been packaged for dissemination onto the NBN Atlas.