Cadmium Concentrations in the Bahia Blanca Estuary (Argentina). Potential Effects of Dissolved Cadmium on the Diatom Thalassiosira curviseriata

Dissolved and particulate cadmium (Cd) concentrations in water and diatoms from the Bah a Blanca Estuary, Argentina, were measured. The study area receives significant urban and industrial discharges. An ecotoxicological study of Thalassiosira curviseriata diatom (the dominant species in winter phyt...

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Bibliographic Details
Published in:Oceanologia 2000, Vol.42 (4), p.505-505
Main Authors: Andrade, Santiago J, Pucci, Adan E, Marcovecchio, Jorge E
Format: Article
Language:English
Subjects:
Cadmium in estuary
Thalassiosira sp
Toxicity bioassay
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Summary:Dissolved and particulate cadmium (Cd) concentrations in water and diatoms from the Bah a Blanca Estuary, Argentina, were measured. The study area receives significant urban and industrial discharges. An ecotoxicological study of Thalassiosira curviseriata diatom (the dominant species in winter phytoplankton blooms) growth when exposed to several concentrations of Cd also was conducted in the laboratory. Cd levels in the estuary are significantly lower than the EC50 values determined for T. curviseriata. Although Cd does not appear to be a hazard at present, toxicity tests on organisms at other trophic levels should be conducted.
ISSN:0078-3234