FIELD: lake fish-breeding. SUBSTANCE: shallow reservoir has fish winter stay hole and ring-type canal, made along perimeter of its bed bank part and connected to ring-type hole. Ring-type canal communicates with reservoir through net of canals. Its part, that is located over fish winter stay hole, has mounted aerator-stream former, output end of which is directed to fish winter stay hole. Fish winter stay hole has form of sweep-net ground and its bottom is deepened by 0.5 - 1.0 m. Optimal conditions are made in shallow reservoir to breed marketable fish and it allows to exercise effective catch of bred fish. EFFECT: shallow reservoir marketable fish breeding provides good terms for fish winter stay and effective catch of bred fish. 1 dwg
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