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Abstract

The aim of this paper is to illustrate the changes undergone by fungal and bacterial populations as a result of acidity in hydric ecosystems. The study focuses on the consequences of pH-lowering on two different correlations: the relationships between microorganisms, and between microorganisms and aquatic vertebrates. The first example given considers the bacteria/fungi relationship in the Lake of Orta by undertaking an analysis of the bacterial and fungal populations before and after liming. A second example deals with the repercussions of acidification of the environment on the vital cycle of a fungus of the genus Saprolegnia and the influence of pH values on the host-parasite correlation for the onset of saprolegniosis in fish.

Additional information

Authors: PEDUZZI R, Université de Genève, Istituto Cantonale Batteriosiorologico, Lugano (CH);DEMARTA A, Université de Genève, Istituto Cantonale Batteriosiorologico, Lugano (CH);TONOLLA M, Université de Genève, Istituto Cantonale Batteriosiorologico, Lugano (CH);MARENGO G, JRC Ispra (IT)
Bibliographic Reference: Paper presented: 5th International Conference, Stresa (NO), May 17-21, 1993
Availability: Available from (1) as Paper EN 37567 ORA
Record Number: 199310889 / Last updated on: 1994-11-29
Category: PUBLICATION
Original language: en
Available languages: en