Rotifer Brachionus calyciflorus

Ferrando, M.D., C.R. Janssen, E. Andreu, and G. Persoone. 1993. Ecotoxicological studies with the freshwater rotifer Brachionus calyciflorus. III. The effects of chemicals on the feeding behavior. Ecotoxicol. Environ. Safety 26 1-9. 

Porta, A.A. and A.E. Ronco. 1993. Cu (II) toxicity to the rotifer Brachionus calyciflorus, as affected by fulvic acids of freshwater origin. Environ. Pollut. 82 263-267. 

Freshwater macroinvertebrates were comparatively sensitive to diazinon (Table 16.7). Results of large-scale experimental stream studies (Arthur et al. 1983) showed that dose levels of 0.3 pg diazinon/L caused a five- to eightfold reduction in emergence of mayflies and caddisflies within 3 weeks. After 12 weeks, mayflies, damselflies, caddisflies, and amphipods were absent from benthic samples. Elevated (and catastrophic) drift of stream invertebrates was also documented in diazinon-treated streams, especially for amphipods, leeches, and snails (Arthur et al. 1983). Shortterm tests of 5-h duration with rotifers (Brachionus calyciflorus) show a 50% reduction in feeding... 

Femandez-Casalderrey, A., Ferrando, M.D. and Andreu-Moliner, E. (1993) Chronic toxicity of methylparathion to the rotifer Brachionus calyciflorus fed on Nannochloris oculata and Chlorella pyrenoidosa, Hydrobiologia 255/256, 41-49. 

Preston, B.L., Snell, T.W., Fields, D.M. and Weissburg, M.J. (2001) The effects of fluid motion on toxicant sensitivity of the rotifer Brachionus calyciflorus, Aquatic Toxicology 52 (2), 117-131. 

ROTOXKIT F Rotifers Brachionus calyciflorus 24 h Acute toxicity ASTM... 

Rotoxkit mortality test with the rotifer Brachionus calyciflorus, with determination of the 24-h LC50. 

B.L. Preston, T.W. Snell, R. Kneisel (1999). UV-B exposure increases acute toxicity of pentachlorophenol and mercury to the rotifer Brachionus calyciflorus. Environ. Pol-lut., 106,23-31. 

Snell, T.W. and B.D. Moffat. 1992. A 2-d life cycle test with the rotifer Brachionus calyciflorus. Environ. Toxicol. Chem. 11 1249-1257. 

De Schamphelaere, K.A., D.G. Heijerick, and C.R. Janssen. 2006. Cross-phylum comparison of a chronic biotic ligand model to predict chronic toxicity of copper to a freshwater rotifer, Brachionus calyciflorus (Pallas). Ecotoxicol. Environ. Saf. 63 189—195. 

In the past few years the use of rotifers in ecotoxicological studies has substantially increased. The main endpoints used are mortality, reproduction, behavior, cellular biomarkers, mesocosms, and species diversity in natural populations [126]. Several workers have used Brachionus calyciflorus for various types of toxicity assessments. Thus, comprehensive evaluation of approximately 400 environmental samples for the toxicity assessment of solid waste elutriates, monitoring wells, effluents, sediment pore water, and sewage sludge was carried out by Persoone and Janssen [127]. The mortality of rotifers hatched from cysts is evaluated after 24 hours exposure. This microbiotest has been commercialized in a Rotoxkit F [128,129]. 

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