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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Limnodriloides verrucosus

Salt-water species. (ref. ID; 7006)

[ref. ID; 7006]

Test system

96-hr acute lethal bioassay

Strains

Worms were sieved (0.5 mm mesh) from sediment (Tsehum Harbour, B.C.) collected by means of Ponar grabs or dip nets.

Toxicants

3CdSO4/8H2O, HgCl2, 2,3,4,5,6-Pentacholophenate, and black liquor.

Test design

Petri dishes (3.5 cm diameter and 1 cm depth). Loading densities <0.5 g/L. 24-hr solution replacement. 3 replicates. Dark. Temperature (1, 10, 20 degrees C), pH (6, 7, 8), salinity (10, 20 ppt).

Measurements/observations

Mortality.

Evaluations

LC50.