Abstract
To continuously monitor the concentration of periphyton detaching from river bed, we attempt to confirm the applicability of a memory-type fluorometer to measure a periphyton concentration in river water with laboratory experiments and field observations. By using the experimental data and observed results, the concentrations of chlorophyll-a measured with the fluorometer, Chl.a (F), are compared with those analyzed with a spectrophotometric method, Chl.a (A). The results of the experiments and observations indicate that the results of Chl.a (F) have a good correlation with those of Chl.a (A), demonstrating the fundamental applicability of the fluorometer to the continuous monitoring of the periphyton concentration in river water.
