Botulotoxin typu C se objevuje ve vodních nádržích s výraznýmľ
The type C botulotoxin occurs in water reservoirs with marked long-lasting lack of oxygen Hypertrophic fishponds in the Czech Republic meet this condition; there is a dramatic increase of phytoplankton abundance in the upper parts of the water, caused by high nutrient income. The fact thatľ (en)