Turbidity and plant growth in large slow-flowing lowland rivers. Progress Report: March 1989

Marker, A.F.H. (1989) Turbidity and plant growth in large slow-flowing lowland rivers. Progress Report: March 1989. Ambleside, UK, Freshwater Biological Association, 12pp. (T04052c5).

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Abstract

The River Great Ouse is a highly managed large lowland river in eastern England. It drains rich arable land in the Midlands and Eastern England and over the years nutrient concentrations have increased and there is a general perception that the clarity of the water has decreased. The main river channels have been dredged a number of times partly for flood control reasons but also for recreational boating and navigation activities. The period covered by this first report has been used to develop specific methodology and instrumentation for measuring turbidity, suspended solids and underwater irradiance for conditions found in the middle abd lower reaches of the River Great Ouse. Sampling strategies have been developed and an extensive sampling programme is now underway covering phytoplankton, suspended solids and turbidity in relation to algal epiphyte growth on underwater macrophytes. Preliminary data are presented relating light levels on the river bed to the river bed profile, turbidity levels and phytoplankton chlorophyll a concentrations. Studies are underway concerning the extent of macrophyte cover and periphyton densities.

Item Type: Monograph or Serial Issue
Title: Turbidity and plant growth in large slow-flowing lowland rivers. Progress Report: March 1989
Personal Creator/Author:
CreatorsEmail
Marker, A.F.H.
Number of Pages: 12
Date: 1989
Publisher: Freshwater Biological Association
Place of Publication: Ambleside, UK
Issuing Agency: Freshwater Biological Association
Uncontrolled Keywords: Rivers; Seasonal variations; Turbidity; Aquatic pl; England, Great Ouse River; Periphyton; Phytoplankton; Chlorophylls
Subjects: Biology
Ecology
Limnology
Item ID: 5245
Depositing User: Hardy B Schwamm
Date Deposited: 04 May 2011 23:56
Last Modified: 29 Sep 2011 15:14
URI: http://aquaticcommons.org/id/eprint/5245

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