HR: 1330h
AN: NB33J-09 [Abstracts]
TI: Biological And Ecological Responses Of Macrobenthic Assemblages To Sediment Contamination In French Streams
AU: * Archaimbault, V
EM: archaimbault@lyon.cemagref.fr
AF: Cemagref - Freshwater Ecosystems Biology Unit, 3 bis quai Chauveau
CP 220, Lyon, 69336 France
AU: Garric, J
EM: garric@lyon.cemagref.fr
AF: Cemagref - Freshwater Ecosystems Biology Unit, 3 bis quai Chauveau
CP 220, Lyon, 69336 France
AU: Babut, M
EM: babut@lyon.cemagref.fr
AF: Cemagref - Freshwater Ecosystems Biology Unit, 3 bis quai Chauveau
CP 220, Lyon, 69336 France
AU: Usseglio-Polatera, P
EM: usseglio@sciences.univ-metz.fr
AF: University of Metz - LBFE, Campus Bridoux
Avenue du General Delestraint, Metz, 57070 France
AU: Wasson, J
EM: wasson@lyon.cemagref.fr
AF: Cemagref - Freshwater Ecosystems Biology Unit, 3 bis quai Chauveau
CP 220, Lyon, 69336 France
AB:
In order to fit the requirements of the European Water Framework Directive, member states have to quantify the relationships
between the biological status and physical and chemical properties of surface waters and to develop validated tools to assess the ecological quality of freshwater ecosystems.
With the objectives 1) to describe toxic impact on in situ macrobenthic communities and 2) to identify key biological metrics for describing toxic pressures, the relationships between stream sediment toxicity (concentration of trace elements, PAHs,
organochlorine compounds and pesticides) and the functional structure of macrobenthic communities were analysed.
Faunal and chemical data were obtained from the French water data network and analysed by multivariate and regression
approaches. Combinations of biological and ecological traits were related to faunal changes and compared to sediment
contamination. Moreover, the possibility of using these results for predicting the stream ecological status as a function of
chemical contamination were examined.
The relevance of observed tendencies and pressure/impact relationships will be discussed.
DE: 1065 Trace elements (3670)
DE: 9335 Europe
DE: 9810 New fields (not classifiable under other headings)
SC: North American Benthological Society [NB]
MN: 2005 Joint Assembly