Original paper
Effects of four heavy metals on survival and hatching rate of Artemia salina (L.)
Kissa, E.; Moraitou-Apostolopoulou, M.; Kiortsis, V.
Archiv für Hydrobiologie Volume 102 Number 2 (1984), p. 255 - 264
31 references
published: Dec 11, 1984
DOI: 10.1127/archiv-hydrobiol/102/1984/255
ArtNo. ESP141010202008, Price: 29.00 €
Abstract
The toxicity of four heavy metals (cadmium, chromium, nickel, cobalt) in Artemia salina has been studied. Two types of toxicity tests have been realized: a) acute toxicity tests: determination of the LC50 48 hours for three days old nauplii of Artemia b) influence of the metals on the hatching rate of the cyst of Artemia. Acute toxicity tests have revealed an increased tolerance of Artemia to three (Cd, Co, Ni) of the four tested metals: LC50 48 h (in mg/1): Cd: 159.611 ± 0.338; Ni: 162.985 ± 0.176; Co: 171.66 ± 0.201, while Artemia has not demonstrated such a high tolerance to chromium: 7.911 ± 0.066. Artemia eggs have shown a higher sensitivity to metals (except chromium) compared with Artemia nauplii: concentrations from 1/15 to 1/30 of the LC50 48 h caused usually a 50% reduction of the hatching rate. For chromium a concentration of about the LC50 48 h caused a halving of the hatching rate.
Keywords
heavy metals • toxicity tests • hatching rate • tolerance • eggs