The particular properties of the gastrointestinal tract of the Black Sea fishes
To assess the physiological status of such fish species of the Black Sea as goatfish, Black Sea horse mackerel, Black Sea whiting, sea ruff, spiny ramp were used features of the histological structure of the gastrointestinal tract, because toxic agents that arrive with food can leads to a weakening of the body's protective properties and as a result - there are various pathological changes of this organ's structure. This article describes the structure morphological features of stomach and midgut. The study established nonspecific histological structure of these organs. All changes of analyzed organs were probably adaptation to nature, as the body of fish adapts to the environmental conditions of habitat and optimizes their functional activity.