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The presence of rotting barley-straw at approximately 50 g m -3 in a disused water supply reservoir appeared to significantly reduce both the general phytoplankton productivity and the cyanobacterial dominance. Algal control mechanisms were not implemented via nutrient removal but appeared in part biological by encouraging phytoplankton grazing organisms and mainly chemical by releasing...
The presence of decomposing barley straw at c. 25 g m -3 in a disused water supply reservoir significantly reduced cyanobacterial and general phytoplankton activity compared with a control water body. Algal control was simultaneous with the release of a cocktail of phytotoxic chemicals, following both the initial immersion of the straw and then after a c. 3 month period of degradation...
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