Open Access Research Paper Views (859) Download (138) Water quality standards and plankton species composition in selected river system in Cagayan de Oro City, Philippines Oliva P. Canencia, Alven L. Gomez J. Bio. Env. Sci.9( 5), 110-116, November 2016. Key: Bigaan RiverCugman riverPhytoplanktonplanktonRiver qualityWater qualityZooplankton Details