FN Archimer Export Format
PT J
TI Diffuse urban pollution increases metal tolerance of natural heterotrophic biofilms
BT 
AF FECHNER, Lise
   GOURLAY-FRANCE, Catherine
   BOURGEAULT, Adeline
   TUSSEAU-VUILLEMIN, Marie-Helene
AS 1:1,2;2:1,2;3:1,2;4:3;
FF 1:;2:;3:;4:PDG-DS;
C1 Irstea, Unite Rech Hydrosyst & Bioproc, F-92163 Antony, France.
   FIRE, FR 3020, F-75005 Paris, France.
   IFREMER, F-92138 Issy Les Moulineaux, France.
C2 IRSTEA, FRANCE
   FIRE, FRANCE
   IFREMER, FRANCE
SI SIEGE
SE PDG-DS
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-p187
IF 3.73
TC 16
UR https://archimer.ifremer.fr/doc/00073/18430/16055.pdf
LA English
DT Article
DE ;Metal tolerance;Beta-glucosidase;Freshwater biofilm;ARISA;Environmental quality standards;PICT;Heterotrophic communities
AB This study is a first attempt to investigate the impact of urban contamination on metal tolerance of heterotrophic river biofilms using a short-term test based on beta-glucosidase activity. Tolerance levels to Cu, Cd, Zn, Ni and Pb were evaluated for biofilms collected at three sites along an urban gradient in the Seine river (France). Metallic pollution increased along the river, but concentrations remained low compared to environmental quality standards. Biofilm metal tolerance increased downstream from the urban area. Multivariate analysis confirmed the correlation between tolerance and contamination and between multi-metallic and physico-chemical gradients. Therefore, tolerance levels have to be interpreted in relation to the whole chemical and physical characteristics and not solely metal exposure. We conclude that community tolerance is a sensitive biological response to urban pressure and that mixtures of contaminants at levels lower than quality standards might have a significant impact on periphytic communities. (C) 2011 Elsevier Ltd. All rights reserved.
PY 2012
PD MAR
SO Environmental Pollution
SN 0269-7491
PU Elsevier Sci Ltd
VL 162
UT 000301087800039
BP 311
EP 318
DI 10.1016/j.envpol.2011.11.033
ID 18430
ER

EF