Scarlett, P.M.; Old, G.H.; Rameshwaran, P.; Roberts, C.

Aquatic macrophyte transect data for the River Lambourn at Boxford 2009 to 2014

The dataset contains results from surveys recording the cover and area of aquatic macrophytes at four transects on the River Lambourn, collected monthly between March 11 2009 and September 30 2014.

The River Lambourn is a tributary of the River Thames, the principal river in the south-east of England. The CEH River Lambourn Observatory comprises a 600 m reach of river and 24 acres of associated water meadows at Boxford, Berkshire.

The surveys were designed to provide an estimate of the area and cover of the three most common aquatic macrophytes and an estimate of the area of the wetted channel at four transects. The species recorded were Ranunculus penicillatus ssp. pseudofluitans (with Ranunculus penicillatus ssp. pseudofluitans x Ranunculus peltatus hybrid also present), Callitriche platycarpa (with some Callitriche obtusanglia) and Berula erecta. The four transects were selected in order to represent a combination of shallow/fast flowing areas and deeper/slower flowing areas, as well as shaded and unshaded reaches.

Publication date: 2016-09-16

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Supporting documentation

Format of the dataset : Comma-separated values (CSV)

This dataset is made available under the terms of the Open Government Licence

You must cite: Scarlett, P.M.; Old, G.H.; Rameshwaran, P.; Roberts, C. (2016). Aquatic macrophyte transect data for the River Lambourn at Boxford 2009 to 2014. NERC Environmental Information Data Centre. https://doi.org/10.5285/37f0ab37-78f1-4ca6-b51f-950e43977b16

 

© Centre for Ecology & Hydrology (Natural Environment Research Council)

Where/When

Study area
Temporal extent
2009-03-11    to    2014-09-30

Provenance & quality

The surveys were designed to provide an estimate of the area and cover of the three most common aquatic macrophytes at four transects along the River Lambourn at Boxford. The species recorded were Ranunculus penicillatus ssp. pseudofluitans (with Ranunculus penicillatus ssp. pseudofluitans x Ranunculus peltatus hybrid also present), Callitriche platycarpa (with some Callitriche obtusanglia) and Berula erecta. The Ranunculus and Callitriche species were not identified to species level as this is frequently impossible without flowering material and because the study was more concerned with the quantitative characteristics of the aquatic macrophytes.

The surveys were conducted monthly from March 2009 until October 2014 with one occurrence of missing data due to high flow which prevented accurate (and safe) surveying. When possible the surveys were timed to coincide with monthly hydraulic surveys reported elsewhere.

The surveys were carried out at four transects distributed along the length of the CEH River Lambourn Observatory. These were selected in order to represent a combination of shallow/fast flowing areas and deeper/slower flowing areas, as well as shaded and unshaded reaches. At sites one to three the channel width is approximately 10m, but at the downstream site the width is nearer to 14m.

Correspondence/contact details

Peter Scarlett
Centre for Ecology & Hydrology
Maclean Building, Benson Lane, Crowmarsh Gifford
Wallingford
Oxfordshire
OX10 8BB
United Kingdom
enquiries@ceh.ac.uk

Authors

Scarlett, P.M.
Centre for Ecology & Hydrology
Old, G.H.
Centre for Ecology & Hydrology
Rameshwaran, P.
Centre for Ecology & Hydrology
Roberts, C.
Centre for Ecology & Hydrology

Other contacts

Custodian
Environmental Information Data Centre
eidc@ceh.ac.uk
Publisher
NERC Environmental Information Data Centre
eidc@ceh.ac.uk

Spatial

Spatial representation type
Tabular (text)
Spatial reference system
OSGB 1936 / British National Grid

Tags

Topic categories
Inland Waters
Keywords
Berula erecta Boxford Callitriche platycarpa Environmental survey Ranunculus penicillatus ssp. pseudofluitans,  River Lambourn Water Water quality
INSPIRE Theme
Habitats and Biotopes