Article (Scientific journals)
Multiscale approach of fish responses to different types of environmental contaminations: A case study
Mayon, N.; Bertrand, Annick; Leroy, Delphine et al.
2006In Science of the Total Environment, 367 (2-3), p. 715-731
Peer Reviewed verified by ORBi
 

Files


Full Text
Maynon et al. 2006.pdf
Publisher postprint (480.17 kB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
biomarkers; bioindicators; multiscale study; organization levels; Leuciscus cephalus; chub
Abstract :
[en] In order to study the responses of wild fish to environmental contaminations, different sites (two references and three contaminated) were sampled across the Walloon hydrographical network (southern Belgium). The status of fish communities was characterized according to an index of biotic integrity (1131). Furthermore, population structure, reproductive parameters and biochemical assays were performed on chub (Leuciscus cephalus) as sentinel species. The results showed impaired responses in fish sampled downstream paper mill effluents (BKME), in a polychlorinated biphenyls (PCB) contaminated site, and in a river receiving pesticides (i.e. atrazine and hexachlorocyclohexane). High level of hepatic 7-ethoxyresorufin-Odeethylase (EROD) activity were evidence of direct toxicant exposure, while population structures showed unbalanced size-frequency distributions. Moreover, in the pesticide contaminated site, a higher proportion of atretic oocytes was found in females and abnormally high plasma alkali-labile phosphorus (ALP) values were noticed in males, compared to reference sites, suggesting that chubs were exposed to estrogenic compounds. IBI scores from both sites were also lower than in reference sites. On the other hand, no particular response was found in hepatic glutathione-S-transferase (GST) activities, hepatic heat-shock protein HSP70 concentrations and plasma sex steroids (estradiol-17 beta, 11-ketotestosterone and testosterone) in chubs from any sites. By using a multiparametric approach, a better understanding of response mechanisms to pollution in fish may be achieved in order to improve the ecological status of river ecosystems. (c) 2006 Elsevier B.V All rights reserved.
Disciplines :
Environmental sciences & ecology
Author, co-author :
Mayon, N.
Bertrand, Annick ;  Centre Hospitalier Universitaire de Liège - CHU > HOSPITALISATION - CHIR. MAXILLO&PLASTIQUE (SI +2D)
Leroy, Delphine ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Ecologie animale et écotoxicologie
Malbrouck, C.
Mandiki, S. N. M.
Silvestre, F.
Goffart, Anne  ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Océanologie
Thomé, Jean-Pierre ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Ecologie animale et écotoxicologie
Kestemont, P.
Language :
English
Title :
Multiscale approach of fish responses to different types of environmental contaminations: A case study
Publication date :
2006
Journal title :
Science of the Total Environment
ISSN :
0048-9697
eISSN :
1879-1026
Publisher :
Elsevier Science Bv, Amsterdam, Netherlands
Volume :
367
Issue :
2-3
Pages :
715-731
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 25 September 2009

Statistics


Number of views
153 (8 by ULiège)
Number of downloads
423 (0 by ULiège)

Scopus citations®
 
59
Scopus citations®
without self-citations
56
OpenCitations
 
53

Bibliography


Similar publications



Contact ORBi