Viral diseases of cultured marine fish and shrimp in Korea

As the marine aquaculture industry has developed, disease problems have increased and caused serious economical losses in the fish production in Korea. Viral diseases are among the major disease problems with mass mortality. Six viruses have been isolated from marine fish and shrimp. This paper reviews the following six viral diseases : viral epidermal hyperplasia (herpesvirus) in flounder, birnaviral disease in flounder and sea breams, viral nervous necrosis (nodavirus) in sevenband grouper, lymphocystis disease (iridovirus) in several marine fishes, snout ulcer disease in tiger puffer and white spot syndrome (baculovirus) in Penaeus chinensis.