Document Detail

Effects of chlorpyrifos on macroinvertebrate communities in coastal stream mesocosms.
MedLine Citation:
PMID:  18060579     Owner:  NLM     Status:  MEDLINE    
This study measured the effects of a single pulse of chlorpyrifos at nominal concentrations of 1 and 10 microg/l on the macroinvertebrate community structure of a coastal stream mesocosm system. Analysis of data using Principal Response Curves (PRC) and Monte Carlo tests showed significant changes in the treated stream mesocosms relative to that of the controls. These changes in the macroinvertebrate assemblages occurred within 6 h, and persisted for at least 124 days after dosing. Significant community-level effects were detected at the lowest concentration on days 2 and 16 post-dosing, giving a no-observed effect concentration (NOEC(community)) of 1.2 microg/l (measured). The mayflies Atalophlebia sp. and Koorrnonga sp., Chironomidae and Acarina were all sensitive to chlorpyrifos and decreased in abundance in treated mesocosms after dosing. The fauna of these coastal stream mesocosms showed similar sensitivity to chlorpyrifos with that of other reported studies, but there was no evidence of recovery after 124 days.
Anne Colville; Peter Jones; Fleur Pablo; Frederick Krassoi; Grant Hose; Richard Lim
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-12-04
Journal Detail:
Title:  Ecotoxicology (London, England)     Volume:  17     ISSN:  0963-9292     ISO Abbreviation:  Ecotoxicology     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-01-30     Completed Date:  2008-05-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9885956     Medline TA:  Ecotoxicology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  173-80     Citation Subset:  IM    
Department of Environmental Sciences and Institute for Water and Environmental Resource Management, University of Technology Sydney (UTS), P.O. Box 123, Broadway, NSW, 2007, Australia.
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MeSH Terms
Chlorpyrifos / administration & dosage,  toxicity*
Dose-Response Relationship, Drug
Environmental Monitoring
Insecticides / administration & dosage,  toxicity*
Invertebrates / drug effects*,  metabolism
Monte Carlo Method
No-Observed-Adverse-Effect Level
Population Dynamics
Time Factors
Water Pollutants, Chemical / administration & dosage,  toxicity*
Reg. No./Substance:
0/Insecticides; 0/Water Pollutants, Chemical; 2921-88-2/Chlorpyrifos

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

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