Assessment of metal contamination in Donana National Park (Spain) using crayfish (Procamburus clarkii)

Water quality assessment in the Aznalcollar area was attempted using multivariate methods based on heavy metal concentrations in red swamp crayfish (Procamburus clarkii). Trace levels of four heavy metals, copper (Cu), zinc (Zn), cadmium (Cd) and lead (Pb), were detected in crayfish from eleven diff...

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Bibliographic Details
Published in:Environmental monitoring and assessment 2004-04, Vol.93 (1-3), p.17-29
Main Authors: SANCHEZ LOPEZ, F. J, GIL GARCIA, M. D, MARTINEZ VIDAL, Jose L, AGUILERA, P. A, GARRIDO FRENICH, A
Format: Article
Language:English
Subjects:
Animal, plant and microbial ecology
Animals
Applied ecology
Astacoidea - chemistry
bioindicators
Biological and medical sciences
Cadmium
Cambaridae
Cluster analysis
Copper
Discriminant analysis
Ecotoxicology, biological effects of pollution
Environmental monitoring
Environmental Monitoring - methods
Environmental quality
Fresh water environment
Freshwater
Fundamental and applied biological sciences. Psychology
Heavy metals
Metal concentrations
Metals, Heavy - analysis
Metals, Heavy - pharmacokinetics
National parks
Principal Component Analysis
Principal components analysis
Procambarus clarkii
Spain
Studies
Tissue Distribution
Trace levels
Water Pollutants - analysis
Water Pollutants - pharmacokinetics
Water quality
Water quality assessments
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Summary:Water quality assessment in the Aznalcollar area was attempted using multivariate methods based on heavy metal concentrations in red swamp crayfish (Procamburus clarkii). Trace levels of four heavy metals, copper (Cu), zinc (Zn), cadmium (Cd) and lead (Pb), were detected in crayfish from eleven different stations. Principal component analysis (PCA) highlighted a gradient of contamination between the sampling stations. Cluster analysis (CA) distinguished three groups of stations. Discriminant analysis also differentiated three groups. The group centroids of the first discriminant function were used to devise an index that varies according to the source of the crayfish. These standardized values are proposed for use as a water quality index. The ability of this index to successfully predict environmental quality was proved with random samples.
ISSN:0167-6369
1573-2959
DOI:10.1023/B:EMAS.0000016789.13603.e5