Loch Enoch

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Loch Enoch and the Range of the Awful Hand
Loch Enoch viewed from the slopes of Mullwharchar

Loch Enoch is a multi-basin freshwater mountain loch in Kirkcudbrightshire,. It covers 124 acres on the west side of Dungeon Hill to the east of Merrick and south of Mullwharchar, looking up on the 'fingers' of the Range of the Awful Hand.

The loch is situated in a granite basin and has several small islands and some beaches on its shore.

The sharp granite sand of these beaches was once collected and sold for sharpening knives and scythes.[1] The vegetation in the loch’s basin is mainly purple moor grass and heather.

The loch's outflow supplies Loch Doon and the River Doon, both in Ayrshire.

Location

Acidification

By 1800 the water of Loch Enoch was noted as acidic.[2] J. McBain in his 1929 book The Merrick and the Neighbouring Hills. Tramps by Hill, Stream and Loch describes a trout that 'bore the unmistakable marks of a Loch Enoch trout, i.e. it was minus the lower half of its tail and part of its ventral fins'.[3] McBain writes that the last recorded trout caught was in 1899.

Since 1940 the loch became more acidic, which was put down to industrial emissions[2] and in the 1950s it completely lost its fish population.[4] In 1994 it was restocked with 3,000 trout.[3] The loch has not become more acidic since the mid-1970s and has become slightly less acidic from the 1980s onwards, with the pH increasing slowly from around 4.3 in 1978 to 4.9 in 2003.

Water analysis

Concentrations of different elements in samples from June 2006[5]
Element Concentration μg/l
Calcium carbonate3 −500
Lithium 0.297
Aluminium 83.9
Vanadium 0.263
Chromium 0.147
Iron 49.3
Iron DRC 46.4
Manganese 6.7
Cobalt 0.064
Nickel 0.348
Copper 0.247
Zinc 3.14
Selenium 0.178

Outside links

References

  1. Barratt, Edward. "'The Croft on the Flowe'". Climb Magazine. Archived from the original on 23 July 2008. https://web.archive.org/web/20080723231228/http://www.climbmagazine.com/WritingCompetitionCroftontheFlowe.aspx. Retrieved 24 June 2008. 
  2. 2.0 2.1 Dr John Kinross. "Freshwater Acidification and 'Acid Rain'". Lecture Notes for MSc Aquatic Ecosystems Management, Freshwater Ecosystems Module. Archived from the original on 4 March 2008. https://web.archive.org/web/20080304034521/http://www.lifesciences.napier.ac.uk/wmfiles/acidweb/HISTORY.HTM. Retrieved 24 June 2008. 
  3. 3.0 3.1 "The Southern Uplands of Scotland". Scottish Mountain Photo Gallery. 5 June 2004. Archived from the original on 15 July 2004. https://web.archive.org/web/20040715054825/http://www.gla.ac.uk/medicalgenetics/suplands.htm. Retrieved 24 June 2008. 
  4. Richard W. Battarbee (1989). "The Acidification of Scottish Lochs". The Geographical Journal 155: 353–360. doi:10.2307/635210. 
  5. Robinson, Craig D.; Charles, Sylvie; Malcolm, Iain A.; Devalla, Sandhya (May 2007). "FRS Method For The Determination Of Trace Metals (Including Rare Earth Elements) In Freshwater Samples By Inductively Coupled Plasma Mass Spectrometry". Fisheries Research Services. http://www.marlab.ac.uk/FRS.Web/Uploads/Documents/IR1207.pdf. Retrieved 28 June 2008.