A critical biosecurity concern for modern bivalve aquaculture operations is management of pathogens that could affect production, including those that are listed by the World Organisation for Animal Health, which include Bonamia ostreae, Bonamia exitiosa, Marteilia
rejringens, Perkinsus marinus, and Perkinsus olseni.
1998) and resistance to Marteilia
sydneyi in Sydneyrock oyster, Saccostrea glomerata (Nell and Perkins, 2006) have been successfully introduced.
Diseases that must be notified by commission country members include the mollusc diseases Bonamiaostreae; Bonamia exitiosa; Marteilia
refringens; Mikrocytos mackini; Perkinsus marinus; Perkinsus olseni; and Xenohaliotis californiensis, plus the crustacean diseases Taura syndrome; White spot disease; Yellowhead disease; Tetrahedral baculovirosis (Baculovirus penaei);
New South Wales Fisheries, the state agency responsible for the industry, believes the disease is caused by the parasite Marteilia
In the 1970's outbreaks of QX disease caused by the haplosporidian parasite Marteilia
sydneyi (Perkins and Wolf, 1976) led to a further decline (Nell, 1993).
Different parasites, such as rickettsiales-like organisms (RLO), coccidia, trematodes, and Marteilia
At present, the fishery is mostly inactive as a result of a biological kill caused by the protozoan parasite Marteilia
previously unknown in this part of the Atlantic, and the appearance of which is not believed to have been associated with harvesting levels or techniques (Moyer et al(1)).
Evaluation of the progeny of third-generation Sydney rock oyster Saccostrea glomerata (Gould, 1850) breeding lines for resistance to QX disease Marteilia
sydneyi and winter mortality Bonamia roughleyi.
The pathogen responsible for QX disease, Marteilia
sydneyi, has been found in nearly all estuaries where SRO cultivation occurs (Adlard & Wesche 2005).
Aquaculture production of Ostrea edulis in much of mainland Europe has, in recent years been limited by 2 key epizootics--Bonamia ostreae and Marteilia
refringens--and the majority of recent breeding attempts in O.
Despite research efforts, there are still many gaps in our knowledge of QX disease (causative agent: Marteilia
First report of Marteilia
disease of the flat oyster Ostrea edulis, in the gulf of Thessaloniki, Greece.