Justification for technology of aquaculture (crayfish) industrial production under optimal conditions for their development in the natural environment, including protected areas

The paper considers technologies and technical means for intensive, industrial production of crayfish aquaculture in the river bays and backwaters. The ways of ensuring the purity of water necessary for vital activity from blue-green algae, intensively developing in the summer, are shown. The algae collecting through the devices of various technical levels for environmental water purification specially developed by LLC "ECOVOLGA" is proposed. This makes it possible to develop aquaculture production in specially protected natural areas.