The sternite is a bone consisting of two parts that form the thorax of vertebrate fish. The sternite is the inner part of the fish's body and is located under the skin along the back. With the help of rods, fish can move in the water, as they serve as a support for movement.
The sternite has the shape of a circle or oval. It is located between the spine and body of the fish. The stubble contains blood vessels, nerve endings and muscles. The fish can move its tail and side fins using a rod to change the speed and direction of movement.
Under natural conditions, stubble is used so that fish can quickly