Copper speciation and toxicity in Macquarie Harbour, Tasmania: an investigation using a copper ion selective electrode

Growth inhibition bioassays using Nitzschia closterium were used to determine the relationship between the reduction in the growth rate and the concentration of free copper ion (Cu free) as measured with a copper Ion-Selective Electrode (ISE). At a salinity of 20, no toxicity was found for Cu free=1...

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Bibliographic Details
Published in:Marine chemistry 2001-05, Vol.74 (2), p.99-113
Main Authors: Eriksen, Ruth S, Mackey, Denis J, van Dam, Rick, Nowak, Barbara
Format: Article
Language:English
Subjects:
Algae
Australia, Tasmania
Copper
Earth sciences
Earth, ocean, space
Exact sciences and technology
External geophysics
Geochemistry
Ion-selective electrode
Mineralogy
Nitzschia closterium
Physical and chemical properties of sea water
Physics of the oceans
Silicates
Speciation
Toxicity
Water geochemistry
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Summary:Growth inhibition bioassays using Nitzschia closterium were used to determine the relationship between the reduction in the growth rate and the concentration of free copper ion (Cu free) as measured with a copper Ion-Selective Electrode (ISE). At a salinity of 20, no toxicity was found for Cu free=10 −11.79 M while, for Cu free=10 −8.20 M, the growth rate was reduced to
ISSN:0304-4203
1872-7581
DOI:10.1016/S0304-4203(00)00117-1