Instruction on the arrangements for combating lerneosis in pond fish-farming establishments (No.13-4-2/1095 of 1997). Country/Territory Russian Federation Document type Regulation Date 1997 Source FAO, FAOLEX Subject Fisheries Keyword Fish disease Freshwater fishes Animal health 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 Lerneosis is invasion fish disease caused by parasitical ostracods pertaining to lernaca family. Disease occurs in the process of fish growing in ponds and small lakes. Pathogen of the disease is lernaca cyprinacea and lernaca elegans. Phytivorous fishes are parasitized by lernaca ctenopharingodnis, while pike is parasitized by lernaca esocina. Ostrocods settle down at skin, fins, nasal fossa, eyepits, oral cavity and branchial cavity of fishes. The document consists of 6 Secs. Section 1 lays down general provisions. Section 2 regards epizootology. Section 3 regards clinical symptoms. Section 4 regards diagnostics. Section 5 regards medical treatment. Section 6 regards prophylaxis. Full text Russian