Fig. 1
Color parameters (L*, a*, and b*) of Nile tilapia fillets reared at different stocking densities. The schematic diagrams overlaid on the fish indicate the central dorsal region of the fillet used for sample collection, ensuring consistent sampling positions between groups. Representative photographs of fillets from each group (HD = high density; LD = low density) are shown next to the graphs to visually display color differences. Values are expressed as mean ± standard deviation. Different letters above the bars indicate statistically significant differences according to Student’s t-test (p < 0.05).
