3.3. Biological parameters
Tilapia did not create a consistent long-term shift in the percent contribution of algal groups during the duration
of the experiment. Detailed phytoplankton counts were made for sampling dates identified as important
time periods regarding changes in phytoplankton population. Plankton analysis showed high values among
treatments. Chlorophytes were the dominant group in all treatments throughout the majority of the experiment.
Chlorella, on the other hand gradually bloomed and maximum density is attained after 6–7 days of culture.
Also observed that green algae dominated in terms of algae abundance and number of identified species
chlorella predominates all the algae presents in all treatments (Figure 1).