Effects of a flash-flood on channel morphology and some insects of a small stony stream in the Peak District, Derbyshire

Dobson, Michael and Cariss, Helen and Murray, Blaire (1997) Effects of a flash-flood on channel morphology and some insects of a small stony stream in the Peak District, Derbyshire. Freshwater Forum, 9, pp. 2-13.

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Abstract

In this paper, some observations are made following a flash-flood that occurred in Stake Clough, a small tributary of the River Goyt, during the evening of 6 August 1996. The site was visited eight times between 8 August - 30 October 1996 to take samples and make observations on the stream. The flood scoured the bed of Stake Clough but more significantly, caused it to change course along the middle part of the floodplain. Initially after the flood, the numbers of insects in all stretches of the stream channel were low (100-200 m super(2)), but then gradually rose to population densities approaching ten times this figure. The benthos was dominated by the Chironomidae and also leuctrid stoneflies (Leuctra nigra, L. hippopus and L. inermis). On 8th August 1996, 12 mesh bags, each containing oak leaves, were placed in the stream and collected after 24 hours. These were also dominated by chironomids, and contained relatively high numbers of the caddis, Potamophylax cingulatus.

Item Type: Article
Title: Effects of a flash-flood on channel morphology and some insects of a small stony stream in the Peak District, Derbyshire
Personal Creator/Author:
CreatorsEmail
Dobson, Michael
Cariss, Helen
Murray, Blaire
Refereed: No
Journal or Publication Title: Freshwater Forum
Volume: 9
Page Range: pp. 2-13
Date: 1997
ISSN: 0961-4664
Issuing Agency: Freshwater Biological Association
Uncontrolled Keywords: Aquatic insects; Ecosystem disturbance; Flooding; Fluvial morphology; Rivers;England; Peak District
Subjects: Ecology
Limnology
Item ID: 4580
Depositing User: Hardy B Schwamm
Date Deposited: 25 Nov 2010 12:24
Last Modified: 29 Sep 2011 16:14
URI: http://aquaticcommons.org/id/eprint/4580

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