Effect of Sublethal Exposure to Chlordecone on Life History Characteristics of Freshwater Rotifer Brachionus calyciflorus Pallas

Effect of sublethal exposure to chlordecone on life history characteristics of freshwater rotifer Brachionus calyciflorus pallas was examined. Chlordecone at 0.5 and 50 mu g/L prolonged the generation time, which contributed to the prolonged duration of the juvenile period. Chlordecone at 50 mu g/L...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 2007-01, Vol.78 (1), p.79-83
Main Authors: Zha, C.-W, Xi, Y.-L, Huang, L, Zhao, L.-L
Format: Article
Language:English
Subjects:
Animals
Brachionus calyciflorus
Chlordecone - toxicity
Fresh Water
Insecticides - toxicity
Life history
Marine
Population Density
Reproduction - drug effects
Rotifera
Rotifera - drug effects
Rotifera - physiology
Water Pollutants, Chemical - toxicity
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Summary:Effect of sublethal exposure to chlordecone on life history characteristics of freshwater rotifer Brachionus calyciflorus pallas was examined. Chlordecone at 0.5 and 50 mu g/L prolonged the generation time, which contributed to the prolonged duration of the juvenile period. Chlordecone at 50 mu g/L prolonged the reproductive period and the mean life span. Chlordecone at 0.5 to 50 mu g/L increased the lifetime egg production and the net reproduction rate. Chlordecone at 0.0005 to 50 mu g/L did not significantly influence the intrinsic rate of population increase or the life expectancy at hatching of the rotifers, indicating that chlordecone at 0.0005 to 50 mu g/L would not induce any significant effects on the growth of the natural B. calyciflorus population.
ISSN:0007-4861
1432-0800
DOI:10.1007/s00128-007-9003-3