Long-term dynamics of Chernobyl 137 Cs in freshwater fish: quantifying the effect of body size and trophic level.

• Title: Long-term dynamics of Chernobyl ¹³⁷ Cs in freshwater fish: quantifying the effect of body size and trophic level.

Author: Sundbom, Marcus; Meili, Markus; Andersson, Evert; Östlund, Mikael; Broberg, Anders

Reference: Journal of Applied Ecology. Apr2003, Vol. 40 Issue 2, p228-240. 13p.

doi: 10.1046/j.1365-2664.2003.00795.x.

Keywords: FISHES — Size; CESIUM; LAKE ecology; CHERNOBYL Nuclear Accident, Chornobyl, Ukraine, 1986

Abstract: Freshwater fish are a potentially important link in the transfer of radionuclides from polluted ecosystems to people. A pulsed contamination event such as the Chernobyl fallout in 1986 is a challenge to the prediction of radioactivity in biota, because activity concentrations of radionuclides can change dynamically among populations during an initial equilibration phase. This was demonstrated from time-series of ¹³⁷ caesium (Cs) in fish from three Swedish lakes (1986–2000, eight species, > 7600 individuals). In addition, we used these data to test hypotheses about the influence of fish size and trophic level on the temporal patterns of ¹³⁷ Cs.

URL:http://onlinelibrary.wiley.com/doi/10.1046/j.1365-2664.2003.00795.x/full

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