I. Introduction
Chlorophyll is a photosynthetic pigment found in plants, algae, and phytoplankton. This molecule is used as a photoreceptor in the process of photosynthesis. Chlorophyll-a (chl-a), which is one of the six different chlorophylls, is the primary molecule responsible for photosynthesis. It is found in plants, algae, and oxygenic photosynthetic organisms ( phytoplankton) that sustain all terrestrial life by producing oxygen. From the standpoint of the quality of inland water, chl-a is a frequently used indicator of the ecological health of aquatic environments. Nutrient enrichment, occurring in many water basins surrounded by agriculture land, causes water eutrophication by reducing the oxygen levels and increasing the concentration of organic matter [1]. Therefore, chl-a concentration can act as a water eutrophication indicator [2], tracking phytoplankton biomass levels during algal blooms [3].