Freshwater fish parasites and environmental quality: an overview and caution.

  title={Freshwater fish parasites and environmental quality: an overview and caution.},
  author={Clive Russell Kennedy},
  volume={39 3},
The use of free-living invertebrates as indicators of freshwater quality is long established and well documented. The basic approaches employed are 1) recognition of indicator species, 2) recognition of changes, usually reduction, in community diversity and 3) construction of biological indices, combining knowledge of 1) and/or 2) and taking into account changes in species abundance. These approaches employ invertebrates because of their immobility and longevity, and rely on a detailed body of… CONTINUE READING

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