Document Detail


Bioenergetic effects of sodium sulfate on the freshwater crustacean, Ceriodaphnia dubia.
MedLine Citation:
PMID:  17372843     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
I tested the hypothesis that if sodium sulfate alters the bioenergetics of Ceriodaphnia dubia, concentrations that cause reduced fecundity in the short (7-day) and long (5 generations) term should also cause changes in feeding rate and/or metabolism, measured as oxygen consumption. In addition, to test the hypothesis that an altered bioenergetic level caused by sodium sulfate exposure will affect the response of that organism to another toxicant, I measured the acute toxicity of phenol to C. dubia in the presence and absence of both food and sodium sulfate. Sodium sulfate reduced the filter-feeding rate of C. dubia, which was associated with significantly reduced oxygen consumption. This decreased energy level appeared to result in a consistent but decreased level of fecundity over a number of generations and the reproductive impairment was dose-dependent. These effects occurred at concentrations much lower than those at which acute (mortality) effects have been observed, a finding that may have regulatory implications. In addition, whereas phenol toxicity to C. dubia was exacerbated by the addition of food, increased phenol toxicity, likely induced by an increase in filtering or metabolic rate due to food addition, was negated when sodium sulfate was added to the test medium.
Authors:
David J Soucek
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2007-03-13
Journal Detail:
Title:  Ecotoxicology (London, England)     Volume:  16     ISSN:  0963-9292     ISO Abbreviation:  Ecotoxicology     Publication Date:  2007 Apr 
Date Detail:
Created Date:  2007-03-20     Completed Date:  2007-09-13     Revised Date:  2013-01-24    
Medline Journal Info:
Nlm Unique ID:  9885956     Medline TA:  Ecotoxicology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  317-25     Citation Subset:  IM    
Affiliation:
Division of Biodiversity and Ecological Entomology, Illinois Natural History Survey, Champaign, IL 61820, USA. d-soucek@inhs.uiuc.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Cathartics / toxicity*
Cladocera / drug effects*
Disinfectants / toxicity
Energy Metabolism / drug effects
Feeding Behavior / drug effects*
Fertility / drug effects
Oxygen Consumption / drug effects*
Phenol / toxicity
Sulfates / toxicity*
Toxicity Tests, Chronic
Chemical
Reg. No./Substance:
0/Cathartics; 0/Disinfectants; 0/Sulfates; 0YPR65R21J/sodium sulfate; 108-95-2/Phenol

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


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