BIOLOGY AND PATHOGENESIS OF DISEASE PATHOGENS

Diseases caused by protozoan and metazoan parasites often cause mass mortality of cultured fish, and like microbial agents the parasites are important pathogens. However, there is only limited information available on the parasites in Southeast Asia. For example, less than 10 % of more than 2030 species of marine and freshwater fish in the Philippines have been examined for the parasites. There are almost no studies on the parasites of cultured fish in the region. The research in this category aimed to screen economically important fish for the presence of parasites, determine diagnosis and pathology of infections, and establish prevention and control methods.

1. Parasitosis in marine and freshwater fishes: diagnosis, pathology, prevention and control of infection

1-1. Screening of important parasites in economically important aquaculture fish (SEAFDEC/AQD, 2000-2003)

1-2. Biology and pathology of the gill monogenean parasitic to grouper (SEAFDEC/AQD, 2000-2003)

1-3. Leech infestation and its associated blood parasitic protozoans (SEAFDEC/AQD, 2000-2003)

1-4. Establishment/application of prevention and control methods against parasites (SEAFDEC/AQD, 2000-2003)

2. Study on parasites of grouper in Thailand (Inland AAHRI, Thailand, 2001-2002)

3. Screening of important parasites of freshwater fish in Thailand and neighboring countries (Inland AAHRI, Thailand, 2003)