author(s)
Reyes Alvin T and Estrada Mark Gil B

abstract
The study generally aimed to determine the effect of different fish bioturbations in the quality of water. The use of tilapia, carp and/or catfish as bioturbators had no effect on altering the temperature, pH, total dissolved solids (TDS), total ammonia nitrogen (TAN) and nitrite of the water. With or without the use of bioturbator, the above mentioned water quality parameters were maintained within optimum ranges. Fish bioturbation had significant effect on water quality parameters such as dissolved oxygen (DO) and phosphorus. Specifically, the use of African catfish as bioturbator significantly increased the DO and phosphorus of water when compared to control.