Comment: Food web interactions and biomanipulation in Australian reservoirs

Matveev, Vladimir and Matveeva, Lilian (1997) Comment: Food web interactions and biomanipulation in Australian reservoirs. Freshwater Forum, 8, pp. 65-68.

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The authors have been studying the control of phytoplankton biomass in several Australian reservoirs. To manipulate fish communities in order to reduce phytoplankton biomass, one needs a thorough understanding of processes in the plankton-associated food webs. In contrast to the situation found in lakes of the northern hemisphere, the planktivorous fish of Australian reservoirs are relatively small and they may deplete small rather than large zooplankters, so that animals as large as the adults of Daphnia carinata may avoid predation. This would result in promotion of Daphnia, particularly if fish eliminate its smaller competitors. The aim of biomanipulation should be the establishment and maintenance of a proper ratio of planktivores/piscivores, adequate for water quality requirements. Successful selection of the appropriate ratio for a given reservoir will depend on the extent of our understanding of its food web interactions. For practical application of biomanipulation in management, further development of the food web theory under Australian conditions is needed.

Item Type: Article
Title: Comment: Food web interactions and biomanipulation in Australian reservoirs
Personal Creator/Author:
Matveev, Vladimir
Matveeva, Lilian
Refereed: No
Journal or Publication Title: Freshwater Forum
Volume: 8
Page Range: pp. 65-68
Date: 1997
ISSN: 0961-4664
Issuing Agency: Freshwater Biological Association
Uncontrolled Keywords: Food chains; Reservoirs; Australia; food webs
Subjects: Ecology
Item ID: 4579
Depositing User: Hardy B Schwamm
Date Deposited: 25 Nov 2010 12:26
Last Modified: 29 Sep 2011 16:14

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