The ECN Data Centre

Site Information: Lathkill

Sponsoring organisation(s)


Environment Agency


Network(s) this site belongs to
UK Environmental Change Network


Site characteristics


Altitude m

The catchment area is indicated with a black line.
Click map to enlarge.

Mean annual pH*
Mean annual discharge* 1.36 cumecs
Mean annual water temperature*
* calculated from the ECN Data Centre database
 
Information held about this site
View a list of datasets collected at this site
View a list of publications about this site
 

Description


The River Lathkill is located in the Peak District National Park and is designated a SSSI. The site is part of a candidate SAC under the Habitats Directive. It is the only river in Britain which rises in, as well as flows through limestone for its entire length. The upper parts are a winterbourne, and in summer the stream issues from bubble springs lower down the valley. Downstream there are alternately moderately flowing gravelly sections and silted pools, some formed by natural tufa dams, others artificially. In the pools there are abundant submerged plants including species of Veronica, Ranunculus, Potamogeton and Callitriche, while faster sections are carpeted with bryophytes, some of which are nationally rare (eg. Cratoneuron commutatum).

There are no direct discharges to the river but the Knotlow cave system has recently been contaminated with sewage effluent and there is concern that this may eventually wash into the river. There are two licensed abstractions for fish rearing purposes and there are concerns over low flows which may affect water quality and the biota (the bottom 2km dried up completely in the summer of 1996). There was a suspected outbreak of crayfish plague in 1993 and crayfish have not been present in the invertebrate samples since that time.

Environment Agency

 

Contact

Ms Lesley Rippon

Environment Agency
Midlands Region, Sapphire East, 550 Streetsbrook Road, Solihull, B91 1QT
lesley.rippon@environment-agency.gov.uk


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