FISH GROWING APPARATUS Russian patent published in 1999 - IPC

FIELD: fishery, in particular, equipment for one-year or multiple-year growing of fish in nursery ponds. SUBSTANCE: apparatus has nursery pond, aerator-flow former and hydraulic fish concentrating, keeping and catching construction positioned adjacent to nursery pond water area and connected with it via one or two channels. Hydraulic construction has vertical water-impermeable wall for cutting off water body from pond bottom to surface. Wall is manufactured from cheap available materials such as polyethylene film, boards constructed from panels or racks and lined with polyethylene film, caprone fabric etc. EFFECT: reduced usage of expensive materials for building of hydraulic construction and wider range of usage. 2 cl, 3 dwg