13 Works

Algal primary production of Welsh upland rivers in response to organic matter addition (2013)

I. Durance, H.B. Feeley, S.J. Ormerod, M.C. Pye, A-L. Sauvadet, C. Gutierrez-Canovas & G. Woodward
These data are algal production values in eight Welsh upland rivers with contrasting land-use, moorland and exotic conifer, in response to riparian deciduous leaf addition. Eight sampling reaches were chosen at two sites, Llyn Brianne (4 reaches) and Plynlimon (4 reaches). The experiment consisted of adding deciduous leaves to half of the reaches whilst the other half were maintained as a control (no addition of deciduous leaves). In order to characterise the algal production of...

Leaf litter decomposition in Welsh upland rivers in response to organic matter addition (2012 - 2013)

I. Durance, H.B. Feeley, D.M. Perkins, M.C. Pye, C. Gutierrez-Canovas, S.J. Ormerod & G. Woodward
These data are leaf litter decomposition rate in eight Welsh upland rivers with contrasting land-use, moorland and exotic conifer, in response to riparian deciduous leaf addition. Eight sampling reaches were chosen at two sites, Llyn Brianne (4 reaches) and Plynlimon (4 reaches). The experiment consisted of adding deciduous leaves to half of the reaches whilst the other half were maintained as a control (no addition of deciduous leaves). To characterise the leaf litter decomposition of...

Macroinvertebrate leaf decomposers in response to organic matter addition to streams in the Welsh uplands (2013)

I. Durance., H.B. Feeley, D.M. Perkins, M.C. Pye, C. Gutierrez-Canovas, S.J. Ormerod & G. Woodward
These data are macroinvertebrate composition and abundance in eight Welsh upland rivers with contrasting land-use, moorland and exotic conifer, in response to riparian deciduous leaf addition. Eight sampling reaches were chosen at two sites, Llyn Brianne (4 reaches) and Plynlimon (4 reaches). The experiment consisted of adding deciduous leaves to half of the reaches whilst the other half were maintained as control (no addition). Nylon mesh bags containing deciduous leaves were fixed in both experimental...

Water chemistry of Welsh upland rivers (2012-2013)

I. Durance, H.B. Feeley & C. Gutierrez-Canovas
These data consist of stream water chemistry for selected Welsh upland rivers. The sampling sites were located in sixty one small and medium catchments. Catchments were chosen from the Welsh Acid Water Surveys (WAWS) program (41 sites) and the Wye catchment (20 sites). Results for pH, alkalinity, conductivity and major cation and anion measurements are presented for the WAWS catchments. Results for pH, alkalinity, conductivity and major anion measurements are presented for the Wye catchment....

Fish species and production in Welsh rivers along a biodiversity gradient (2012 - 2013)

I. Durance, H.B. Feeley, M.C. Pye, C. Gutierrez-Canovas, S.J. Ormerod & G. Woodward
This dataset consists of fish species, fish length and fish weight from samples taken from small and medium catchments across Wales. Samples were collected in the summers and autumns of 2012 and 2013 using electrofishing. All the collected individuals were counted and recorded to represent the fish diversity and abundance of each sampling site and date. The main goal of this survey was to relate fish production with a gradient of aquatic biodiversity associated with...

Suspended organic matter stocks of Welsh upland rivers in response to organic matter addition (2012 - 2013)

I. Durance, C. Gutierrez-Canovas, M.C. Pye & S.J. Ormerod
These data are suspended organic matter stocks of coarse and fine particulate organic matter in eight Welsh upland rivers with contrasting land-use, moorland and exotic conifer, in response to riparian deciduous leaf addition. Eight sampling reaches were chosen at two sites, Llyn Brianne (4 reaches) and Plynlimon (4 reaches). The experiment consisted of adding deciduous leaves to half of the reaches whilst the other half were maintained as a control (no addition of deciduous leaves)....

Molecular analysis of freshwater bacterial biofilm communities under experimentally manipulated dissolved organic carbon regimes at Llyn Brianne (2014)

I.M. Russo, H.B. Feeley, M.C. Pye, N. Razi, K. Sworn, L Chrimes, D. Edwards, M. Nicholls, S. Johnston, C. James, A. Williams, I. Durance & A.J. Weightman
These data consist of raw 16S rRNA gene sequences for the bacterial communities in three upland Welsh river sites under different treatments. A mapping file with metadata for each sample is provided and a operational taxonomic unit (OTU) table. These sites were situated in three streams from the Llyn Brianne Stream Observatory, Powys, Wales, UK (52°08' N, 3°45' W). The catchments cover approximately 300 square kilometres of upland Wales in the upper Afon Tywi. These...

Taxonomy for macroinvertebrates in Welsh upland rivers (2012-2013)

I. Durance, S.J. Ormerod, H.B. Feeley, G. Woodward, K. Layer & C. Gutierrez-Canovas
These data are for macroinvertebrate taxonomy and abundance of Welsh upland rivers. The sampling sites were located in small and medium catchments across Wales. Sampling took place in either spring 2013 for sites in the Wye catchment or during 2012 for the other catchments. At each sampling point, 2-minute kick-samples were taken from river riffles to represent macroinvertebrate composition. Samples were preserved in industrial methylated spirit on site. Samples were then sorted and identified in...

Macroinvertebrate composition of Welsh upland rivers in response to organic matter addition (2013)

I. Durance, H.B. Feeley, M.C. Pye, S.J. Ormerod, G. Woodward & C. Gutierrez-Canovas
These data are macroinvertebrate composition and size in eight Welsh upland rivers with contrasting land-use, moorland and exotic conifer, in response to riparian deciduous leaf addition. Eight sampling reaches were chosen at two sites, Llyn Brianne (4 reaches) and Plynlimon (4 reaches). The experiment consisted of adding deciduous leaves to half of the reaches whilst the other half were maintained as a control (no addition of deciduous leaves). To characterise the benthic macroinvertebrate communities of...

Cellulolytic decomposition in Welsh upland rivers in response to organic matter addition (2013)

I. Durance, C. Gutierrez-Canovas, D.M. Perkins & G. Woodward
These data are cellulolytic decomposition in eight Welsh upland rivers with contrasting land-use, moorland and exotic conifer, in response to riparian deciduous leaf addition. Eight sampling reaches were chosen at two sites, Llyn Brianne (4 reaches) and Plynlimon (4 reaches). The experiment consisted of adding deciduous leaves to half of the reaches whilst the other half were maintained as a control (no addition of deciduous leaves). To characterise the cellulolytic decomposition of the studied streams,...

Genotype data for three freshwater macroinvertebrate species in upland Wales, UK (2012-2013)

H.C. MacDonald, M.W. Bruford, S. Ormerod & T.H. Jones
The resource consists of genotype data (genetic constitution of an individual organism) for three freshwater macroinvertebrate species, Amphinemura sulcicollis, Isoperla grammatica and Baetis rhodani collected at sites in upland Wales during May 2012 and May 2013. New nucleotide tandem repeats in DNA sequences i.e. Novel microsatellites were developed for this project so that genetic analysis could be carried out within the three species. Extra data on how microsatellite scores were grouped i.e. binned into unique...

Predicted outcomes from land use change scenarios in upland Wales catchments

N. Small, H. Prosser & I. Durance
A spatial approach was developed to interpret qualitatively expressed scenarios, and predict the probability and amount of change for 10 land-cover types across 127 sub-catchments in upland Wales. Existing data, which have a temporal coverage of 1998-2007, were used for the underpinning mapping, and fed into the tabular land cover change summary data. For each scenario, the maximum and minimum land-cover change was projected using rules based on current land cover, agricultural land quality, ownership...

Benthic organic matter of Welsh upland rivers in response to organic matter addition (2013)

I. Durance, H.B. Feeley, S.J. Ormerod, M.C. Pye, G. Woodward & C. Gutierrez-Canovas
These data are benthic organic matter stocks of coarse and fine particulate organic matter in eight Welsh upland rivers with contrasting land-use, moorland and exotic conifer, in response to riparian deciduous leaf addition. Eight sampling reaches were chosen at two sites, Llyn Brianne (4 reaches) and Plynlimon (4 reaches). The experiment consisted of adding deciduous leaves to half of the reaches whilst the other half were maintained as a control (no addition of deciduous leaves)....

Registration Year

  • 2017
    13

Resource Types

  • Dataset
    13

Data Centers

  • Natural Environment Research Council
    13

Affiliations

  • Cardiff University
    13
  • Imperial College London
    8