, Volume 5, Issue 5, pp 433–445 | Cite as

Potential use of freshwater molluscs for monitoring river pollution

  • Zadory L. 
  • Müller P. 


To control the increasing pollution of streams in urban and industrial areas, ecological criteria such as indicator properties of organisms and biocoenoses are required. Hereby, the distribution and abundance of populations is determined by their genetic structure, that react in different ways to the intensity of burdening parameters.

The Saar River is excessively polluted by industrial sewage, thermal wastes and chemicals. Therefore monitoring programs were established to analysze the structure of benthic populations in order to control the influence of the present pollution of the river.

Genetic and population-ecological analyses of the freshwater gastropodPhysa acuta Drap. indicate gradually significant differences in the allele frequencies and their heterozygoties. The results demonstrate correlated strategies in different populations, whereby balanced allele frequency distribution patterns indicate the influence of the toxic substances.

These analyses serve for a better understanding of evolutionary processes in urban environments as well as for an objective consideration of the indicator systems by detecting changes before the extinction of a taxon.


Allele Type Selection Coefficient Methoxychlor Relative Load Saprobic Index 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. Arndt, U.: Bioindikatoren zur Beurteilung von Schadstoffbelastungen in der Umwelt. 1979.Google Scholar
  2. Ayala, F.: Protein evolution. Lecture Notes in Biomathematics 19, 177–205 (1977)Google Scholar
  3. Ayala, F., Powell, J. and Tracey, R.: Enzyme variability in theDrosophila willistoni Group V. Genetic variation in natural populations ofDrosophila equinoxalis. Gen. Res. 20, 19–42 (1977)Google Scholar
  4. Beddiny, E. A.: Comparative study on the loerance of some adult freshwater snails to sodiumpentachlorophenate. Bull. Fac. Sci. Assiut Univ. 5, 1, 99–106 (1976)Google Scholar
  5. Bryant, E. H.: On the adaptive significance of enzyme polymorphisms in relation to environmental variability. American Naturalist 108, 1–19 (1974)CrossRefGoogle Scholar
  6. Burch, J. B.: Chromosome studies of aquatic pulmonate snails. Nucleus 3, 177–208 (1960)Google Scholar
  7. D'Amelio, V. et al.: Statistical analysis of the distribution of naphtyl amidase isolated fromPhysa acuta, Gastropoda, Pulmonata. Acta Embryol. et Morph. Exp. 2, 155–159 (1973)Google Scholar
  8. D'Ancona Lunetta, G. and Mignanti, A.: Phosphatase activities inPhysa acuta eggs and embryos. Acta Embryol. et Morph. Exp. 7, 249–257 (1964).Google Scholar
  9. Dobzhansky, T. et. al.: Evolution. San Francisco, 1977.Google Scholar
  10. Förstner, U. and Müller, G.: Schwermetalle in Flüssen und Seen als Ausdruck der Umweltverschmutzung. Heidelberg 1974.Google Scholar
  11. Fretter, V. and Peake, J.: Pulmonates, Vol. 1 and 2, 1975.Google Scholar
  12. Ginzburg, L. R.: The equilibrium and stability for n alleles under the density dependent selection. J. Theor. Biol 68, 545–550 (1977)CrossRefGoogle Scholar
  13. Hendrick, P. W. and Ginevan, M. E.: Genetic polymorphism in heterogenous environments. 1976.Google Scholar
  14. Jones, J. S.: Ecological genetics and natural selection in molluscs. Science 182, 546–552 (1973)Google Scholar
  15. Kimura, M.: Evolutionary rate at the molecular level. Nature 217, 624–626 (1968)CrossRefGoogle Scholar
  16. Margalef, R.: Perspectives in ecological theory. Univ. Chicago Press 1968.Google Scholar
  17. Meisch, H. U., Reinle, W. and Bielig, H. J.: Schwermetalle in den Sedimenten der Saar. Deutsche Gewässerkdl. Mitt. 22, 1, 2–8 (1978)Google Scholar
  18. Morrill, J. B.: Protein content and dipeptidase activity of normal and cobolt treated embryos ofLymnaea palustris. Acta Embryol. et. Morph. Exp. 7, 131–142 (1964)Google Scholar
  19. Müller, P.: Biogeographie und Raumbewertung. Darmstadt 1977.Google Scholar
  20. Müller, P.: Basic ecological concepts and urban ecological systems. Int. MAB II Seminar for Physical planners 1978.Google Scholar
  21. Müller, P.: Arealsysteme und Biogeographie. Stuttgart 1981.Google Scholar
  22. Müller, P. and Nagel, P.: Ökologische Bewertung der Saar im Verdichtungsraum von Saarbrücken. 1978.Google Scholar
  23. Nei, M.: Molecular population genetics and evolution. 1975.Google Scholar
  24. Ravera, O.: Effects of heavy metals — cadmium, copper, chromium and lead on a freshwater snailBiomphalaria glabrata, Gastropoda, Prosobranchia. Malacologia 16, 1, 231–236 (1977)Google Scholar
  25. Reinbold, K. A. et al.: Comparative uptake and biodegrability of DDT and Methoxychlor by aquatic organisms. Bull. Nat. Hist. Sur. 30, 405–415 (1971)Google Scholar
  26. Roughgarden, J.: Patchiness in the spatial distribution of a population caused by stochastic functions in resources. Oikos 29, 52–59 (1977)Google Scholar
  27. Roughgarden, J.: Theory of population genetics and evolutionar ecology. New York, London, 1979.Google Scholar
  28. Schäfer, A.: Organisms — Exposition und Wasserqualität. Proc. 41st Dtsch. Geographentag Mainz, 537–547, 1978.Google Scholar
  29. Selander, R. K. and Kaufman, D. W.: Genetic variability and strategies of adaptation in animals. Proc. Natl. Acad. Sci. USA 70 1875–1877 (1973)CrossRefGoogle Scholar
  30. Spehar, R. L., Anderson, R. L. and Fiandt, J. T.: Toxicity and bioaccumulation of cadmium and lead in aquatic invertebrates. Environ. Poll. 15, 3, 195–208 (1978)CrossRefGoogle Scholar
  31. Stern, K. and Tigerstedt, P. M. A.: Ökologische Genetik. Stuttgart 1974.Google Scholar
  32. Wright, S.: Evolution and the genetics of populations. Variability within and among populations. Vol. V, Chicago 1978.Google Scholar

Copyright information

© Akademische Verlagsgesellschaft 1981

Authors and Affiliations

  • Zadory L. 
    • 1
  • Müller P. 
    • 1
  1. 1.Department of BiogeographyPresident of the University of Saarland and Consultant in Ecology to the Federal Government of GermanySaarbrückenGermany

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