Toxicity of brilliant blue dye on development organ and survival rate of tilapia larvae ( Oreochromis niloticus)

One of the most widely used textile dyes is brilliant blue. However, brilliant blue has a bad influence on the waters, namely the effect of carcinogenic, polluted air quality, cannot be degraded or non-biodegradable and affects fish life in the waters. The purpose of this research was to determine the effect of the toxicity of brilliant blue dye on organ development and survival rate of tilapia (Oreochromis niloticus) larvae. The stage of this research was a completely randomized design with the provision of brilliant blue dye to the larvae of tilapia (Oreochromis niloticus). The results showed that the highest concentration treatment (40 ppm) experienced the fastest organ development, the smallest yolk volume (0.14 mm3), the highest abnormality (20%), and the lowest larval survival rate (65%).