ECOTOXICOLOGICAL ASSESSMENT OF AQUATIC SEDIMENTS WITH CAENORHABDITIS-ELEGANS (NEMATODA) - A METHOD FOR TESTING LIQUID-MEDIUM AND WHOLE-SEDIMENT SAMPLES
W. Traunspurger et al., ECOTOXICOLOGICAL ASSESSMENT OF AQUATIC SEDIMENTS WITH CAENORHABDITIS-ELEGANS (NEMATODA) - A METHOD FOR TESTING LIQUID-MEDIUM AND WHOLE-SEDIMENT SAMPLES, Environmental toxicology and chemistry, 16(2), 1997, pp. 245-250
We present a method using the free-living nematode Caenorhabditis eleg
ans (Maupas, 1899) to assess toxicity in liquid medium and whole-sedim
ent setups. Test duration is 72 h; endpoints are body length, number o
f eggs inside worms, percentage of gravid worms, and number of offspri
ng per worm. The effect of CdCl2 on C. elegans in liquid-phase exposur
es is described as an example. Results from a field study with pollute
d sediments from the River Elbe (Germany) suggest that nematodes may b
e useful organisms in assessing toxicity of sediments in the whole pha
se.