The ingestion of rough bacteria Aer. salmonicida subsp. salmonicida (in vitro) by blood phagocytes of fishes Acipenser baeri, Siluris glanis, Cyprinus carpio was studied. Carp (16±3) and wels (14±2) neutrophiles ingested more active than sturgeon one’s (11±2), but wels thrombocytes (12±1.7) ingested higher numbers of bacteria than sturgeon (5±4) and carp (2.9±2) ones. After exposition of fishes to herbicids Roundup, Avans, Azoprim, applied in so called save doses, it was confirmed the effects (unfavourable), depended on species and the dose of the herbicide, fish species and phagocyte’s type.

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