A decade of studies at Loch Fleet, Galloway (Scotland): A catchment liming project and restoration of a brown trout fishery

Howells, Gwyneth and Dalziel, Tom (1995) A decade of studies at Loch Fleet, Galloway (Scotland): A catchment liming project and restoration of a brown trout fishery. Freshwater Forum, 5(1), pp. 4-38.

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Abstract

Loch Fleet is a small upland lake in the hills of Galloway in southwest Scotland. In the 1970s the waters of the loch became more acidic and a brown trout fishery failed. This account summarises an experimental project, the "Loch Fleet Project" initiated in 1984, designed to reverse acidification of the loch by liming parts of the catchment. Liming about 40% of the catchment in 1986 and 1987 raised the pH and calcium levels, and reduced toxic aluminium concentrations. The improved conditions had been maintained up to 1994, but water in the loch, and its principal inflow stream, is now falling close to the desired threshold of quality. After liming, restocking with local strains of trout in 1987 was successful, and a self-recruiting population became established within 2 years. Recruitment is highly variable, however, and was attributed to severe spring conditions and the limited spawning capacity of the nursery stream, rather than to water quality.

Item Type: Article
Title: A decade of studies at Loch Fleet, Galloway (Scotland): A catchment liming project and restoration of a brown trout fishery
Personal Creator/Author:
CreatorsEmail
Howells, Gwyneth
Dalziel, Tom
Refereed: No
Journal or Publication Title: Freshwater Forum
Volume: 5
Number: 1
Page Range: pp. 4-38
Date: 1995
ISSN: 0961-4664
Contact Email Address: library@fba.org.uk
Issuing Agency: Freshwater Biological Association
Uncontrolled Keywords: Acidification; Habitat improvement (chemical); Scotland; Loch Fleet
Subjects: Conservation
Fisheries
Limnology
Item ID: 4555
Depositing User: Hardy B Schwamm
Date Deposited: 15 Nov 2010 17:21
Last Modified: 29 Sep 2011 16:15
URI: http://aquaticcommons.org/id/eprint/4555

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