Document Detail


Organochlorinated pesticides, PCBs, dioxins, and PBDEs in grey mullets (Liza ramada) and allis shads (Alosa alosa) from the Vilaine estuary (France).
MedLine Citation:
PMID:  23014954     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
This study aimed to compare the contamination levels of various organohalogenated compounds in two migratory fish species in the Vilaine River in western France. Organochlorinated pesticides, polychlorinated biphenyls (PCBs), dioxins (polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDDs/Fs)), and polybrominated diphenyl ethers (PBDEs) were analyzed in two diadromous species from the Vilaine estuary, the grey mullet (Liza ramada)-an amphihaline species, and the allis shad (Alosa alosa)-an anadromous species. Fish were collected in spring 2004 and spring 2005, upstream and downstream of the Arzal Dam. PCB contamination varied from 27 to 200 ng g(-1) dry weight (d.w.). PCDDs/Fs, expressed in toxicity equivalent quantity (TEQ) varied from 0.4 to 2.8 pg g(-1) d.w. Dioxins and dioxin-like PCBs expressed in total TEQ varied from 1.4 to 18.8 pg g(-1) d.w. PBDE47 was present at around 2-10 ng g(-1) d.w. and concentrations of the insecticide dichlorodiphenyltrichloroethane breakdown product p,p'-dichlorodiphenylchloroethylene varied from 1 to 14 ng g(-1) d.w. For both species, specimens collected upstream were more contaminated. The grey mullet specimens were less contaminated than the allis shad when taken downstream of the dam but were more contaminated upstream. The allis shads presented intermediate contaminant concentrations with a less pronounced difference between upstream and downstream specimens. However, it is thought that shads do not feed when they spawn in the upstream parts of rivers, which should modify the contaminant concentrations. However, measurements in upstream shad samples show an unexpected increase of the contamination, which remains unexplained.
Authors:
Gilles Bocquené; Alain Abarnou
Related Documents :
23155864 - Air impacts from three alternatives for producing jp-8 jet fuel.
19968554 - Involvement of the plant polymer suberin and the disaccharide cellobiose in triggering ...
24185664 - Transformation of the wild tomatolycopersicon chilense dun. byagrobacterium tumefaciens.
24747244 - Spectroscopic measurements of estuarine dissolved organic matter dynamics during a larg...
11387974 - Increasing rice photosynthesis by manipulation of the acclimation and adaptation to light.
20943694 - Smells like aphids: orchid flowers mimic aphid alarm pheromones to attract hoverflies f...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-27
Journal Detail:
Title:  Environmental science and pollution research international     Volume:  -     ISSN:  1614-7499     ISO Abbreviation:  Environ Sci Pollut Res Int     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-9-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9441769     Medline TA:  Environ Sci Pollut Res Int     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Ifremer, Centre Atlantique, Unité de Biogéochimie & Écotoxicologie, Cellule d'Analyse de Risque Chimique, Rue de l'Ile d'Yeu, BP 21105, 44311, Nantes Cedex 03, France, gbocquen@ifremer.fr.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  In vivo exposure of Mytilus edulis to living enteric bacteria: a threat for immune competency?
Next Document:  Organ transplantation and meaning of life: the quest for self fulfilment.