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Journal of Fisheries and Aquatic Science
Year: 2010  |  Volume: 5  |  Issue: 5  |  Page No.: 394 - 401

The Use of Barley Straw for Controlling of Cyanobacteria Under Field Application

H. Rajabi, Y. Filizadeh, M. Soltani and M.H. Fotokian    

Abstract: This study was done to determine whether decomposing barley straw can be used to control the growth of cyanobacteria under field condition. Decomposing barley straw with two different amounts (40 and 80 kg m-2) was placed as sausage forms into the experimental ponds and the quantity of cyanobacterial genera was measured as indicator of growth. The quantitative measurements over five months showed that the straw was effective for controlling overall growth of cyanobacteria compared to controls. Barley straw was capable for inhibiting the growth of Microcystis, Anabaena and Aphanizomenon. In contrast, decomposing barley straw stimulated the growth of Oscillatoria, whereas Nostoc grown wasn’t affected by rotting barley straw. The results of this investigation indicated that barley straw could introduce an easy-to-use, practical and cost-effective method to assist water managers and, potentially, aquaculture ventures for managing the occurrence of cyanobacterial blooms in small freshwater basins.

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