Linear-mass characteristics of the black sea-azovsky crossing agriculture [Alosa immaculata (Bennet, 1835)] delta of the Don river

The article is devoted to the study of the herd population of the Black Sea-Azov pass herring from the delta of the river. Don. The data of the ichthyological journal are studied and a sample is made. Linear and mass characteristics of producers, as well as age and sex structures were described.