Modern state of commerciall ichthyofauna from the estuaries of the southern part of the Baltic Sea as the result of anthropogenic inﬂuence. Communication 1. The Vistula lagoon
Modern ichthyofauna of the Vistula lagoon is investigated as the result of several historical periods of anthropogenic inﬂuence. Fishery is the most powerful factor of anthropogenic inﬂuence. For historical reasons ﬁshery in the lagoon developed as artisanal ﬁsheries. The prohibition of the use of motor vessels in the German period and the usage of low powered boats in the Soviet period were conductive to the development of trade type ﬁshery in the lagoon. From the late 1950s to the present days the enlarged ﬁshery regulation measures have been applied with the aim of creating a highly productive system of the usage of water biological resources in the lagoon. In the recent decades eutrophication has appeared as another powerful factor of the inﬂuence on the ichthyofauna state, though modern ichthyofauna consists in a stable condition.