Abstract
The concentrations of protein, carbohydrate and lipid were measured in the ovaries and body tissue of the barnacles, Megabalanus tintinnabulum Linnaeus, 1758 during the ovarian maturation stages that is, immature, growing and mature. The protein, carbohydrate and lipid concentrations increased significantly in ovarian tissue with the advancement of maturation stages. The same was the case with the body tissue, that is, the biochemical constituents in tissue increased with the advancement of maturation stages. The concentrations of protein, carbohydrate and lipids in ovaries reached maximum values in winter which is the brooding period of barnacles. In the winter season, the body tissue also contained the maximum concentrations of protein and lipid indicating that the body tissue served as a storage site in barnacles instead of hepatopancreas in other crustaceans.
