River Mease

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River Mease south of Lullington near Clifton Campville

The River Mease is a lowland clay river in the Midlands, flowing through Leicestershire, Derbyshire and Staffordshire and forming the border between these counties for parts of its length.

The river and the lower part of one of its tributaries, the Gilwiskaw Brook (pronounced jill-a-whiskey) are both protected as "one of the best examples of an unspoilt meandering lowland river".[1] The river receives protection under European Union law as a Special Area of Conservation; and protection under UK law as a Site of Special Scientific Interest.[1]

Description

The River Mease near Clifton Campville

The Mease is formed by a confluence of smaller streams near to the village of Norton Juxta Twycross in north-west Leicestershire.[2] It flows westwards for approximately 16 miles across a largely rural and agricultural landscape to its confluence with the rivers Trent at Croxall in Derbyshire, with its waters eventually reaching the North Sea via the Trent and the Humber Estuary.

The river flows through areas underlain with bands of Triassic Period sandstone and Mercia Mudstone.[2] After flowing through a wide valley between the villages of Measham and Appleby Magna, the land opens up into flat countryside: the river's path is not of steep topography, meaning the river flows gently and meanders "passively".[1]

The path of the river has changed little over time. Historical alterations were made near to the villages of Clifton Campville, Harlaston and Croxall, with the addition of weirs and leats to serve mills[1] (now demolished or non-operational).

In the 1980s work was undertaken to deepen the Mease between the village of Measham and its confluence with the River Trent: this was part of a "comprehensive arterial drainage scheme" which was designed to allow land drains to drain into the river.[1]

The village of Measham takes its name from the River: Measham means: the homestead on the River Mease.[3]

Wildlife

The river is a designated site of special scientific interest due to the fish that it supports.[4] Of particular interest are the resident populations of spined loach (Cobitis taenia) and European bullhead (Cottus gobio) (two internationally notable species of native freshwater fish with a restricted distribution in England), white-clawed crayfish (Austropotamobius pallipes) and European otters (Lutra lutra).[5]

The most numerous fish in the river are chub and roach; with dace, pike, perch and gudgeon also recorded.

The river's wildlife is highly sensitive to pollution and fish numbers have fallen since 2007.

Natural England's report in February 2010 reported that the river's two special fish (spined loach and European bullhead) were both being adversely affected by pollution: both in terms of having lower than expected population sizes, and the river failing to provide favourable conditions for them to live.[1]

Other wildlife, such as the white-clawed crayfish, have been pushed along the river to its confluence with the River Trent.[1] White-clawed crayfish numbers have also been negatively affected by infiltrating foreign American signal crayfish, which have entered the river from a pool at Catton Hall.[1]

Pollution

The river receives the outflow of nine sewerage treatment plants (located at Smisby, Donisthorpe, Packington, Measham, Netherseal, Edingale, Snarestone, Clifton Campville, Overseal, Norton juxta Twycross, Annwell Place and Chilcote), as well as the outflow from 10 private sewerage operations.[2] In addition the river receives the outflow from several opencast coal mines.[2] The river has suffered reduced fish numbers since 2007 when the Environment Agency stopped artificially restocking the river.[1] The Environment Agency are instead trying to encourage a natural recovery following several "pollution incidents".[1]

The main pollutant is thought to be phosphates and the main cause of the pollution is thought to be the Sewage Treatment Plant at Packington, which is operating at full capacity, leading to "overflow" being released into the river via the Gilwiskaw Brook.[6] The water quality of the majority of the river is recorded as "moderate"; the section between Harlaston Bridge and the confluence of the River Trent is recorded as "poor".[1]

Places along the River Mease

In order that the river passes through them

- The river joins the Trent north of Croxall.

References

("Wikimedia Commons" has material
about Mease River Mease)