Original Research

Freshwater algae and the economy

W. E. Scott, T. Zohary
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie | Vol 7, No 4 | a929 | DOI: https://doi.org/10.4102/satnt.v7i4.929 | © 1988 W. E. Scott, T. Zohary | This work is licensed under CC Attribution 4.0
Submitted: 17 March 1988 | Published: 17 March 1988

About the author(s)

W. E. Scott,, South Africa
T. Zohary,, South Africa

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Abstract

This article discusses the current economic importance of fresh water algae and possibilities of exploitation of algae in the future. Desirable and undesirable aspects are considered and illustrated with examples mainly from South Africa. The excessive development of undesirable algae in freshwater adversely affects the water quality by a number of chemical changes which can vary from tastes and odours to production of substances that consitute a threat to human or animal health. Removal of unwanted algae adds considerably to the costs of water treatment. Excessive algal growth impairs recreational activities and affects shoreline property values.

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