ichthyophthiriasis, white-spot disease, ich parasitic infection of freshwater fish caused by the ciliate Ichthyophthirius multifiliis
ichthyophthiriasis, white-spot disease, ich parasitic infection of freshwater fish caused by the ciliate Ichthyophthirius multifiliis
ichthyophthiriasis, white-spot disease, ich parasitic infection of freshwater fish caused by the ciliate Ichthyophthirius multifiliis