The Department was notified on 13 July by the company concerned that mortalities had occurred at their salmon farm at Salt Point, Bertraghboy Bay, County Galway. The Department's senior fish pathologist subsequently inspected the farm and confirmed that the mortalities were due to an outbreak of furunculosis in one cage on the farm. Under the direction of the Department the company took appropriate remedial action in terms of treatment, as well as the removal and disposal of mortalities. Following treatment the number of mortalities declined significantly and the outbreak was quickly brought under control. All fish on site are currently being harvested.
Furunculosis is a bacterial fish disease which affects wild fish populations as well as farmed stock. It is endemic to a number of wild fisheries and hatcheries and can also precipitate serious losses in marine salmon farms. The source of the disease outbreak in this specific instance has not, I am advised, been identified. As with most such outbreaks, however, the source of the infection is likely to have been apparently healthy carrier fish not showing any clinical symptoms of the disease at time of transfer.
Movements of fish to salmon farm sites from hatcheries are subject to clearance by the Department's fish health unit. The issue of movement permits is dependent on the Department being satisfied as to the health status of the fish to be transferred.
The prevention and control of disease is a primary objective for the Irish fish farming industry. Disease incidence is being tackled through improved husbandry, site management and treatments as well as an ongoing programme of monitoring, inspections, movement control and research.
Ireland has a longstanding excellent fish health status in Community terms, confirmed by the regular monitoring of all farms under the official disease control system for more than ten years. This has been acknowledged by the EC Commission which last year approved a number of measures and programmes to safeguard the health of our fish stocks by preventing the introduction and spread of infectious diseases.