Instruction on the prophylaxis of gas-bubble disease of spawns and fishes (No.13-4-2/1049 of 1997). Country/Territory Russian Federation Document type Regulation Date 1997 Source FAO, FAOLEX Subject Fisheries, Water Keyword Fish disease Freshwater fishes Animal health Freshwater pollution Pollution control Geographical area Arctic, Asia and the Pacific, Black Sea, Caspian Sea, CIS (Commonwealth of Independent States), Eastern Europe, Europe, Europe and Central Asia, North Pacific, North-West Pacific Entry into force notes Entry into force from the date of issue. Abstract Gas-bubble disease originates in industrial fish-farming establishments in warm and geo-thermal water and in incubation workshops when industrial method of fish reproduction is applied. The aforesaid disease is caused by over-saturation of water by gases: molecular nitrogen and oxygen. The document consists of 4 Secs. Section 1 regards aetiology. Section 2 regards clinical symptoms. Section 3 regards diagnosis. Section 4 regards prophylaxis. Full text Russian