Zonation of submerged vegetation in Lake Kariba, Zimbabwe and its ecological interpretation

Machena, C. (1987) Zonation of submerged vegetation in Lake Kariba, Zimbabwe and its ecological interpretation. Kariba, Zimbabwe, Department of National Parks and Wild Life Management , 23pp. (Lake Kariba Fisheries Research Institute Project Report, 55)

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Abstract

The submerged vegetation of Lake Kariba is described in relation to degree of slope (lake morphometry), depth and light transparency. The direct gradient analysis technique - canonical correspondence analysis and the TWINSPAN classification programs were used to analyse the data set. The western end of the lake with low transparency has a low species diversity (with Vallisneria aethiopica dominating). Species diversity increases with increased transparency in the other parts of the lake. The classification revealed monospecific communities for all species as well as mixed communities with Lagarosiphon as the associate species with the broadest distribution. The ordination revealed a first axis strongly related to the depth and transparency gradients and the second axis related to slope.

Item Type: Monograph or Serial Issue
Title: Zonation of submerged vegetation in Lake Kariba, Zimbabwe and its ecological interpretation
Personal Creator/Author:
CreatorsEmail
Machena, C.
Series Name: Lake Kariba Fisheries Research Institute Project Report
Volume: 55
Number of Pages: 23
Date: December 1987
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; vertical distribution; ecological zonation; aquatic plants
Subjects: Biology
Ecology
Environment
Item ID: 8174
Depositing User: Ms Maria Kalentsits
Date Deposited: 09 Mar 2012 07:04
Last Modified: 09 Mar 2012 07:04
URI: http://aquaticcommons.org/id/eprint/8174

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