Effect Of Water Quality On Phytoplankton Abundance In Hampalam River And Fish Pond Of Batanjung Village

Abstract

Phytoplankton is microorganism which possesses important roles in the waters, not only as primary producer in food chain but also one of the parameters for fertility level of the waters. This study was aimed at knowing the phytoplankton dynamics and the water quality of Hampalam River and fish pond in Batanjung Village, Kapuas Regency. The study was carried out from May 2011 to May 2012, and sampling was done 13 sucessive times at 6 station points. Phytoplankton sampling was done using filtering method and physical and chemical parameter measurements were done in situ and laboratory. Results showed that 60 genera of 7 phytoplankton phylla were found in the river and pond, with the highest abundance of Pleurosigma belonging to Chrysophyta in the river and Euglena sp.belonging to Euglenophyta in the pond, respectively. Based upon the phytoplankton structure and aquatic physical and chemical parameters, Hampalam river and public pond were in moderate fertility level or stable ecosystem. DHL, Salinity, total P, NO3, NH3, and pH directly affect the phytoplankton.