Physiological parameters and problems of energy budget estimation in Mediterranean and Black Sea fishes

During several expeditions in Mediterranean in 1970-1980s on the scientific vessel "Akademic Kovalevsky" (Institute of the Biology of the Southern Sea s, Sevastopol) some parameters of energy metabolism of fishes were studied. It was shown that fat (triacylglicerol) accumulation, their utilization fo r energy metabolism, effect of food supply on these processes in Mediterran ean fishes have features of similarity and difference with Black Sea ones. Principal scheme of energy balance for Black Sea fishes may be used for Med iterranean ones. At the exumple of horse mackerel Trachurus mediterranus en ergy consumption, utilization, expenditure for growth and metabolism was an alysed. Intensity and efficiency of production formation was studied. Such investigation has perspectives for estination of energy and substance balan ce (budjet) not only for mass species of fishes but invertebrate animals of both water bodies too.