abstract: Age-and sex-dependent characteristics of Mediterranean horse mackerel Trachurus mediterraneus from Sevastopol coastal waters (Black Sea, Ukraine) at the period of 2008-2010 were studied. The alanin- and aspartataminotransferase (ALT and AST) activities in the liver and oligopeptides concentration in blood were measured in male and female at the age of 1-3 years. Significant age-dependent changes were evidenced, while the sex differences were not significant. The results can be applied for develo
journal: Turkish Journal of Fisheries and Aquatic Sciences