title: Toxicity effects of copper on two species of marine diatoms microalgae and two species of dinoflagellates
abstract: The copper toxic effect was studied on two species of Black Sea diatoms Cerataulina pelagica and Phaeodactylum tricornutum, and two species of dinoflagellates Levanderina fissa and Prorocentrum nanum. A wide range of variability in the resistance of cultures to copper as a toxicant is demonstrated. The EC50 values for different species varied from 1.8 to 43.7 mg·L-1. An increase in the algae initial biomass within one species caused a corresponding decrease in the toxic effects of Cu2+. The two 
journal: Ecologica Montenegrina