Ecological Indicators for the Assessment of the Quality of by E. P. H. Best, J. Haeck (auth.), E. P. H. Best, J. Haeck

By E. P. H. Best, J. Haeck (auth.), E. P. H. Best, J. Haeck (eds.)

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Read Online or Download Ecological Indicators for the Assessment of the Quality of Air, Water, Soil, and Ecosystems: Papers presented at a Symposium held in Utrecht, October 1982 PDF

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Additional info for Ecological Indicators for the Assessment of the Quality of Air, Water, Soil, and Ecosystems: Papers presented at a Symposium held in Utrecht, October 1982

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From 1980 onwards, the differences in larval mortality between Rhinewater and control were small and not significant. Similar yearly quality variations of egg batches also interfere with an accurate determination of teratogenic or epigenetic effects. Moreover, no teratogenic effects can be scored in dead eggs. As dead eggs could represent a large part of teratogenic effects, comparisons between groups with different egg mortality are difficult. However, one type of effect, pugheadedness, occurred at a high rate in Rhinewater.

In Dutch). BIO-INDICATORS AND CHEMICAL POLLUTION OF SURFACE WATERS 245 Gaag, M. A. van der, Kerkhoff, J. F. J. van de, Klift, H. W. van de, and Poels, C. L. : 1983, 'Toxicological Assessment of River Quality Assays with Fish', Environmental Monitoring and Assessment 3, 247-255 (this issue). Hawkes, H. : 1982, 'Biological Surveillance of Rivers', Wat. Poll. , 329-342. Hovenkamp-Obbema, I. R. , KJapwijk, S. , and Landman, J. E. : 1982, 'Biological Evaluation of the Water Quality in North and South Holland', H 2 0, 15,406-412 (in Dutch).

E. ), Symposium on Primary Productivity and Mineral Cycling in Natural Ecosystems, Univ. , 81-138. : 1979, 'Proposals for a Biotypological Classification of Water Sources in the European Communities', in James, A. and Evison, L. ), Biological Indicators of Water Quality, John Wiley and Sons, Ltd. 7, 1-32. Rijkswaterstaat,1980, 'The Water Quality of the Rhine in The Netherlands in the Period 1972-1979', Report 80-032. Royal Institute for Purification of Waste Water, Lelystad, 71 pp. : 1973, 'Systems of Water Quality from Biological Point of View', Arch.

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