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Protozoan Parasites of Freshwater Fishes

机译:淡水鱼原生动物寄生虫

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External and internal parasites occur in all species of freshwater and saltwaterfishes. In nature, a balance is usually established between parasites and their fish hosts. In intensive fish culture operations, however, parasites can cause significant mortalities. External single-celled protozoan parasites are among the most serious pathogens of cultured freshwater fish. Some of the most common of these are described here.

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