Münzinger A, Monicelli F
Staatliches Amt für Wasser- und Abfallwirtschaft, Herten, Germany.
Ecotoxicol Environ Saf. 1991 Aug;22(1):24-31. doi: 10.1016/0147-6513(91)90043-o.
The results from chromium, nickel, and zinc bioassays with three populations of Daphnia magna indicate that the investigated strains are differently sensitive. Sublethal concentrations which have a negative effect on survival and reproduction after 21 days of exposure also cause a significant reduction in the body length and brood size of primiparous females. Problems and consequences of the repeatability of such bioassays between laboratories in different countries are discussed.
