Document Detail

Impact assessment of various rearing systems on fish health using multibiomarker response and metal accumulation.
MedLine Citation:
PMID:  15814314     Owner:  NLM     Status:  MEDLINE    
European sea bass were reared in three different systems: one flow-through (FTS), one recirculating (RAS), and one recirculating with a high-rate algae pond (RAS + HRAP). After 1 year of rearing, the final fish weight was 15% lower in the RAS compared to the FTS. The accumulation of a growth-inhibiting substance in the RAS is the main hypothesis explaining this difference. As in environmental risk assessment, fish bioaccumulation markers and biomarkers were used to demonstrate exposure to and effects of the rearing water in the three rearing systems. Thirty fish per system were sacrificed before their condition factor (CF) and liver somatic index (LSI) were calculated. Nine biomarkers, including ethoxyresorufin-O-deethylase (EROD) and superoxide dismutase (SOD), were measured in liver and twelve metals including As, Cd, Cu, Pb, Cr, and Zn, for which there are regulations regarding human consumption, were measured in liver and muscle. In all systems, CF and LSI were not significantly different and no correlation was found with biomarker activity or metal concentration. EROD and SOD activities were significantly increased in RAS. Accumulation of seven and four metals in muscle and liver, respectively, was significantly higher in the RAS relative to FTS. The HRAP prevented metal accumulation except for chromium and arsenic. Eight metal concentrations were significantly higher in liver than in muscle. Concentrations of toxic metals were similar to reported values and below FAO/WHO recommended values for human consumption.
G Deviller; O Palluel; C Aliaume; H Asanthi; W Sanchez; M A Franco Nava; J-P Blancheton; C Casellas
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Ecotoxicology and environmental safety     Volume:  61     ISSN:  0147-6513     ISO Abbreviation:  Ecotoxicol. Environ. Saf.     Publication Date:  2005 May 
Date Detail:
Created Date:  2005-04-07     Completed Date:  2005-08-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7805381     Medline TA:  Ecotoxicol Environ Saf     Country:  United States    
Other Details:
Languages:  eng     Pagination:  89-97     Citation Subset:  IM    
Département sciences de l'environnement et santé publique, Faculté de pharmacie, UMR 5556, 15, av. Charles Flahault, 34060 Montpellier, France.
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MeSH Terms
Aquaculture / methods*
Bass / physiology*
Biological Markers*
Growth / physiology
Liver / enzymology,  metabolism
Liver Function Tests
Metals / metabolism*
Muscle, Skeletal / metabolism
Trace Elements
Reg. No./Substance:
0/Biological Markers; 0/Metals; 0/Trace Elements

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