Morphology and biology of parasite responsible for scuticociliatosis of cultured olive flounder Paralichthys olivaceus

[摘要] ABSTRACT: Based on the arrangement and shape of the buccal structure, scuticociliates isolated from cultured olive flounder Paralichthys olivaceus belonged to the family Uronematidae and showed many characteristics of Uronema marinum. Therewas variation in the morphometry of clinical isolates taken from different organs of infected flounder. However, the isolates did not show any significant difference in morphometry under cultured conditions. The ciliates were easily maintained in invitro medium to which antibiotic agents had been added and which had been enriched with the raw brain tissue of a healthy olive flounder. The ciliates propagated in a wide range of both temperature (6 to 30°C) and salinity (10 to 35 ppt).

[学科分类] 生物科学（综合）

[关键词] Olive flounder;Paralichthys olivaceus;Scuticociliatosis;Uronema marinum