Ecotoxicological studies with the freshwater rotifer Brachionus calyciflorus. III. The effects of chemicals on the feeding behavior.
The effect of short-term exposure to xenobiotics on the feeding behavior of the freshwater rotifer Brachionus calyciflorus was studied. The filtration and ingestion rates of this rotifer decreased after an exposure of 5 hr to sublethal concentrations of copper, pentachlorophenolate, 3,4-dichloroaniline, and lindane. The effective concentrations at which feeding rate was reduced to 50% of that in controls (EC50) for the respective chemicals are 0.032, 1.85, 41.2, and 8.5 mg/liter. The potential use of feeding behavior as test criterion for toxicity screening tests with aquatic invertebrates is discussed.
Ferrando
M D
MD
Department of Animal Biology (Animal Physiology), Faculty of Biological Sciences, University of Valencia, Spain.
Janssen
C R
CR
Andreu
E
E
Persoone
G
G
D000814:Aniline Compounds / Q000633:toxicity; D000818:Animals; D005247:Feeding Behavior / Q000187:drug effects; D001556:Hexachlorocyclohexane / Q000633:toxicity; D010416:Pentachlorophenol / Q000633:toxicity; D012403:Rotifera / Q000187:drug effects* / Q000502:physiology; D015262:Xenobiotics / Q000633:toxicity*
D000814:Aniline Compounds; D015262:Xenobiotics; C014464:3,4-dichloroaniline; D001556:Hexachlorocyclohexane; D010416:Pentachlorophenol