Avaliação das variáveis físicas e químicas da água em aquários de tilápia Oreochromis niloticus sob diferentes condições experimentais

This study evaluated the physical and chemical variables of water, including temperature, dissolved oxygen, pH, total ammonia, hardness, and nitrite, in tilapia (Oreochromis niloticus) aquariums under different experimental conditions. Three experiments were conducted with continuous monitoring of water variables to ensure suitable conditions for the organisms' development. Statistical analyses included analysis of variance (Anova), principal component analysis (PCA), and hierarchical clustering to identify patterns and correlations among the variables. The results demonstrated that all evaluated parameters remained within the recommended limits for aquaculture, with temperature and dissolved oxygen being the most influential factors in the system's dynamics. This study reinforces the importance of continuous monitoring of water variables as an essential tool for maintaining optimal conditions in experimental tilapia aquariums.