Oil pollution experiment (Opex). I. Fate of an oil mousse and effects on macrofauna in a model ecosystem representing a Wadden Sea tidal mudflat
Kuiper, J.; de Wilde, P.A.W.J.; Wolff, W.J. (1984). Oil pollution experiment (Opex). I. Fate of an oil mousse and effects on macrofauna in a model ecosystem representing a Wadden Sea tidal mudflat, in: Persoone, G. et al. (Ed.) Proceedings of the International Symposium on Ecotoxicological Testing for the Marine Environment, Ghent, Belgium, september 12-14, 1983: volume 2. pp. 331-359
In: Persoone, G.; Jaspers, E.; Claus, C. (Ed.) (1984). Proceedings of the International Symposium on Ecotoxicological Testing for the Marine Environment, Ghent, Belgium, september 12-14, 1983: Volume 2. IZWO/State University Gent: Gent. VIII, 580 pp., meer
For several reasons the fate and effects of oil pollution cannot be readily studied in natural ecosystems. Furthermore, the results of laboratory tests cannot be easily extrapolated to natural systems. A logical objective of ecotoxicological research is therefore to simulate natural systems in model-ecosystem experiments. A 1-year feasibility study was carried out with Model Tidal Flat ecosystems (MOTIFs), designed to represent tidal f1at systems typical of the Wadden sea and other temperate estuarine areas. In the first 6 months the four MOTIFs developed very similarly. After this period an oil spill was simulated by exposing two of the four MOTIFs to a floating oil mousse for 1 week. During this week part of the oil was buried in the sediment by bioturbation. This sediment-bound fraction caused a prolonged exposure 'of the MOTIFs to oil compoundsShort- and long-term effects resulted in large differences between oil-treated and control MOTIFS. These differences persisted up to the end of the experiment 7 months after the removal of most of the oil.
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