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Conference Proceeding

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Freshwater Wetlands and Wildlife

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The mean biomass of metaphyton was estimated at monthly intervals during the sum­ mer of 1982 in cells that had been flooded to 1 m above normal for 1 and 2 years and in control cells in an experimental marsh complex, located in the Delta Marsh, Manitoba, Canada. In 1982, cells flooded in 1981 had their highest mean algal biomass in June and July. It gradually declined through September, with an annual mean of 66 g m-2• In cells flooded in 1982 and in control cells, mean algal biomass was significantly lower than in 2-year flooded cells; their mean biomass over the growing season were 20 g m-2 and 2.6 g m-2, respectively. In the 1-year flooded treatment, mean algal biomass was highest in September; in the control, it peaked in June. Mean algal biomass during the growing season and among treatments was not correlated with any chemical parameter measured but did vary significantly among different kinds of habitats within the cells, being highest in areas dominated by standing emergent litter.


This proceeding is from Hosseini, S. M. and A. G. van der Valk. 1989. The impact of prolonged, above-normal flooding on metaphyton in a freshwater marsh. pp. 317-324. In R. R. Sharitz and J. W. Gibbons (Eds.) Freshwater Wetlands and Wildlife, proceedings of a symposium held at Charleston, South Carolina, March 24-27, 1986. USDOE Office of Scientific and Technical Information, Oak Ridge, TN.


Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.



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