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- Title
ACUTE TOXICITY OF CHROMIUM ON Cnesterodon decemmaculatus (PISCES: POECILIIDAE).
- Authors
Vera-Candioti, Josefina; Soloneski, Sonia; Larramendy, Marcelo L.
- Abstract
The acute toxicity of Cr(VI) upon 96 h of continuous exposure of the ten-spotted live-bearing fish Cnesterodon decemmaculatus (Jenyns 1842) was evaluated (LC50/96h) in the concentration from 0 to 45.5 mg L-1 Cr(VI) and found to be 21 mg L-1; Upon 24, 48, 72, and 96 h of exposure, the LC50 values are 35.1, 27.5, and 24.0 and 21.4 mg L-1, respectively. No mortality was observed for controls or for the fish exposed at 3.2 mg L-1. Mortality at the highest Cr(VI) concentration within 24 h exposure was 63 % Cr(VI) is suggested to be used as positive control agent in piscine toxicity assessment, at least when C. decemmaculatus is involved.
- Subjects
RIO de la Plata River Valley (Argentina &; Uruguay); ACUTE toxicity testing; CHROMIUM; FISHES; LIVEBEARING aquarium fishes; ANALYTICAL chemistry
- Publication
Theoría: Ciencia, Arte y Humanidades, 2011, Vol 20, Issue 1, p81
- ISSN
0717-196X
- Publication type
Article