Title

Responses of a Periphytic Assemblage Exposed to a Complex Effluent: Bioassays and Artificial Channels  

Author(s) / Editor(s)

Volatier, L.

Content Language(s)

French

Type of Document

Thesis / dissertation

Document Status

Final

Document Availability

Reference/Abstract

Abstract / Description

Biological changes of periphytic assemblages exposed to an industrial effluent were investigated in bio-essays and artificial channels. The studied biological changes refer to the whole community (biomass), the algal community (biomass, photosynthesis) and the bacterial community (composition, enzymatic activities). The study clearly shows the relevance of the periphytic assemblages as biological markers of a chloride-rich pollution. It also demonstrates differences in the periphytic responses depending on the seasonal factor. Moreover we observed that the more abrupt changes were related to the enzymatic activities and bacterial composition. These biological parameters appear to be more appropriate than the other ones for the detection of various levels of pollution (effluent concentrations). This work also highlights that the DGGE (Denaturating Gradient Gel Electrophoresis) technique is a very powerful tool to examine the progressive changes in bacterial communities composition from periphytic assemblages under various environmental stresses.

Keywords

ARTIFICIAL CHANNELS; PERIPHYTON; CHLORIDE; DENATURATING GRADIENT GEL ELECTROPHORESIS

Geographic Keywords

FRANCE; RHONE-ALPES

Date of Publication/Issue

October 2004

Publisher (Owner)

Institut National des Sciences Appliquées (INSA) of Lyon

Publication Location

Lyon, France

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Target Audience

Researchers and Academics; Policy Makers

Topics this item is listed under

Periphyton [3060]