A comparative study of consumption rates and preference for some species of aquatic plants by Tilapia rendalli

Chifamba, P.C. (1988) A comparative study of consumption rates and preference for some species of aquatic plants by Tilapia rendalli. Kariba, Zimbabwe, Department of National Parks and Wild Life Management , 29pp. (Lake Kariba Fisheries Research Institute Project Report, 60)

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Abstract

The daily consumption rates and preference of juvenile Tilapia rendalli for some macrophytes, Ceratophyllum demersum, Lagarosiphon major, Najas pectinatas and Valisneria aethiopica were determined. Fish were offered single macrophyte diets to determine daily consumption and a mixture of the 4 macrophytes in equal quantities to determine selection. Consumption rates were 821.50 mg, 829.05 mg, 940.00 mg and 2293.53 mg per fish per day, respectively. The differences in consumption rates were significant. Preference was shown for V.aethiopica, whilst C.demersum was least selected. Fish fed on single species lost weight whereas those fed on a variety of macrophytes gained in weight.

Item Type: Monograph or Serial Issue
Title: A comparative study of consumption rates and preference for some species of aquatic plants by Tilapia rendalli
Personal Creator/Author:
CreatorsEmail
Chifamba, P.C.
Series Name: Lake Kariba Fisheries Research Institute Project Report
Volume: 60
Number of Pages: 29
Date: October 1988
Publisher: Department of National Parks and Wild Life Management
Place of Publication: Kariba, Zimbabwe
Issuing Agency: Lake Kariba Fisheries Research Institute, Zimbabwe
Uncontrolled Keywords: Zimbabwe; Lake Kariba; Tilapia rendalli; aquatic plants; diet habits; feeding behaviour; food preferences
Subjects: Biology
Ecology
Item ID: 8177
Depositing User: Ms Maria Kalentsits
Date Deposited: 09 Mar 2012 07:11
Last Modified: 09 Mar 2012 07:11
URI: http://aquaticcommons.org/id/eprint/8177

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