The fishing season is divided into several distinct periods. The first, which extends from March till May, that is from the breaking up of the ice to the time of flood, is called the caviar season; it is the most important and most productive of the caviar and isinglass. The second occurs in July when the waters have sunk within their ordinary bed, and the fish having spawned, are returning to the sea. The third, from September to November, is the season when the beluga, sturgeon, and sevriuga[34] return to the deepest parts of the river. These fish are also taken in winter by nets of a peculiar form. At that time of year the fishermen of the coasts often travel over the ice for dozens of miles from the land. Every two men have a horse and sledge, and carry with them 3000 yards of net, with which they capture belugas, sturgeons, silures, and even seals under the ice. These expeditions are very dangerous. The wind often drives the ice-blocks on a sudden out to sea, and then the loss of the fishermen is inevitable, unless the wind chops round and drives them back to land. Old experienced fishermen allege that the instinct of the horses forewarns them of these atmospheric changes, and that their uneasiness puts their masters on their guard against the danger; according to the same authorities, the moment the animals are yoked they turn of their own accord towards the shore, and set off thither with extraordinary speed.
The fishermen of Astrakhan reckon three classes of fish. The first they call red fish, which includes the beluga, the sevriuga, and the sturgeon. The second consists of white fish, such as the salmon-trout, the bastard beluga, the sterlet,[35] the carp or sazan, the soudak,[36] and the silure. To the third class belong all those designated by the general name of tchistia, kovaya or riba, either on account of the closeness of the nets employed to take them, or of their habits of entering rivers in very dense shoals. They are small fish, which are little prized, and are salted for the consumption of the interior of the empire.
The government fishing board has the general control of the fisheries, grants the requisite licences, superintends the election of the headmen, sends out inspectors to maintain order, and collects information as to the produce of the fisheries. In 1828, 8887 men employed in fishing, and 254 in taking seals, with 3219 boats, brought in 43,033 sturgeons, 653,164 sevriugas, and 23,069 belugas: these yielded 330 tons of caviar, and about 34 tons of isinglass. There were also taken 8335 soudaks, and the enormous quantity of 98,584 seals. The sturgeon fishery alone produces about 2,000,000 of rubles annually, but the expenses are very considerable. The revenue derived by the government from the fisheries of the Volga amounts to 800,000 paper rubles.