Document Detail

Effects of the insecticide permethrin on three life stages of the grass shrimp, Palaemonetes pugio.
MedLine Citation:
PMID:  16546255     Owner:  NLM     Status:  MEDLINE    
Toxicity of the pyrethroid insecticide permethrin was assessed using three life stages of the estuarine grass shrimp, Palaemonetes pugio. Adult and larval shrimp were tested with and without sediment. An aqueous embryo test was also conducted. Cellular stress biomarkers, glutathione, and lipid peroxidation, were assessed. Larval shrimp were the most sensitive life stage with a 96-h lethal concentration (LC(50)) value of 0.05 microg/L, compared to 0.25 microg/L for adults, and 6.4 microg/L for embryos. The presence of sediment significantly decreased toxicity of permethrin to both adult and larval shrimp. Permethrin exposure increased time to hatch in embryos and decreased swimming behavior of larvae. Lipid peroxidation levels were significantly decreased in the adult shrimp, but increased in larval shrimp exposed to permethrin. Low levels of permethrin may negatively affect grass shrimp health and survival. Permethrin use in the coastal zone should be carefully managed to avoid adverse impacts on nontarget estuarine organisms.
M E DeLorenzo; L Serrano; K W Chung; J Hoguet; P B Key
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Publication Detail:
Type:  Journal Article     Date:  2006-03-20
Journal Detail:
Title:  Ecotoxicology and environmental safety     Volume:  64     ISSN:  0147-6513     ISO Abbreviation:  Ecotoxicol. Environ. Saf.     Publication Date:  2006 Jun 
Date Detail:
Created Date:  2006-05-29     Completed Date:  2006-11-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7805381     Medline TA:  Ecotoxicol Environ Saf     Country:  United States    
Other Details:
Languages:  eng     Pagination:  122-7     Citation Subset:  IM    
NOAA, National Ocean Service, Center for Coastal Environmental Health and Biomolecular Research, 219 Fort Johnson Road, Charleston, SC 29412, USA.
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MeSH Terms
Biological Assay
Embryo, Nonmammalian / drug effects,  physiology
Geologic Sediments
Glutathione / metabolism
Insecticides / toxicity*
Larva / drug effects,  growth & development,  physiology
Lethal Dose 50
Life Cycle Stages / drug effects
Lipid Peroxidation
Palaemonidae* / drug effects,  growth & development,  physiology
Permethrin / toxicity*
Reg. No./Substance:
0/Insecticides; 52645-53-1/Permethrin; 70-18-8/Glutathione

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

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