Document Detail

Effects of dietary Cd and Cu on feeding and growth rates of the landsnail Helix engaddensis.
MedLine Citation:
PMID:  11139178     Owner:  NLM     Status:  MEDLINE    
Effects of dietary cadmium and copper on feeding and growth rates of adult Helix engaddensis snails were studied for a 1-month period. The concentrations of cadmium were 0, 50, 100, 200, 400, and 800 microg Cd/g dry food, while those of copper were 0, 4, 20, 100, 500, and 2500 microg Cu/g dry food. Both metals inhibited feeding and growth rates significantly after 1 week and 3 weeks of exposure to Cd and Cu, respectively. Inhibition caused by Cd was found to be irreversible, which indicates toxicity, while that of Cu was reversible, indicating starvation because snails identified and refused to consume contaminated food. After 4 weeks of exposure, the NOEC of Cd was 50 microg/g and the LOEC was 100 microg/g, while those for Cu were 20 and 100 microg/g, respectively. EC50,75,90,100 (growth and feeding) values were calculated, and indicated that H. engaddensis snails are suitable for short-term toxicity bioassays.
K M Swaileh; A Ezzughayyar
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Ecotoxicology and environmental safety     Volume:  47     ISSN:  0147-6513     ISO Abbreviation:  Ecotoxicol. Environ. Saf.     Publication Date:  2000 Nov 
Date Detail:
Created Date:  2001-01-02     Completed Date:  2001-02-08     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  7805381     Medline TA:  Ecotoxicol Environ Saf     Country:  United States    
Other Details:
Languages:  eng     Pagination:  253-60     Citation Subset:  IM    
Department of Biology and Biochemistry, Birzeit University, West Bank, Palestine.
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MeSH Terms
Administration, Oral
Biological Assay / methods
Cadmium / adverse effects*
Copper / adverse effects*
Dose-Response Relationship, Drug
Environmental Monitoring / methods
Environmental Pollutants / adverse effects*
Feeding Behavior
Helix (Snails) / growth & development*
Reg. No./Substance:
0/Environmental Pollutants; 7440-43-9/Cadmium; 7440-50-8/Copper

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

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