Document Detail

Chromium toxicity on two linked trophic levels. I. Effects of contaminated algae on Daphnia magna.
MedLine Citation:
PMID:  7682919     Owner:  NLM     Status:  MEDLINE    
The effects of feeding Daphnia magna on algae (Scenedesmus acutus) pretreated with different concentrations of Cr(VI) were studied. A positive effect on growth and newborn production rate was observed in the daphnids fed on algae exposed to 1 mg/liter Cr(VI). Fecundity and growth were drastically reduced in daphnids fed on algae exposed to 10 mg/liter Cr(VI). Since the algae, cultured in the presence of these two Cr(VI) concentrations, supplied daphnids with similar amounts of chromium, the observed effects on the population dynamics of D. magna were attributed more to alterations of the nutritional value of the algal food, due to the Cr treatment, than to a toxic effect of the metal.
G Gorbi; M G Corradi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Ecotoxicology and environmental safety     Volume:  25     ISSN:  0147-6513     ISO Abbreviation:  Ecotoxicol. Environ. Saf.     Publication Date:  1993 Feb 
Date Detail:
Created Date:  1993-05-27     Completed Date:  1993-05-27     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:  64-71     Citation Subset:  IM    
Istituto di Ecologia, Università di Parma, Italy.
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MeSH Terms
Algae, Green / drug effects*,  growth & development
Chromium / administration & dosage,  pharmacology,  toxicity*
Daphnia / drug effects*,  growth & development
Reproduction / drug effects
Reg. No./Substance:

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