However, in our study, there were no significant differences between brown meal (Macrocystis, Lessoniaceae and Lessonia) and green meal (Caulerpa, Enteromorpha and Ulva), probably because of the use of different brown and green seaweed genera than used by the other authors, and because of the similar chemical composition of the test diets. Recently, other studies have shown that fresh seaweed could improve shrimp growth because seaweeds have important components that are sources of fatty acids, essential amino acids, minerals and vitamin C and E that act as nutritional supplements for shrimp