Effects of UV-B radiation on the feeding of the rotifer Brachionus plicatilis

The feeding of the rotifer Brachionus plicatilis with six strains of marine microalgae(Chlorella sp.,Pauloua uiridis,Tetraselmis chuii,Isochrysis galbana Park 8701,Chaetoceros muelleri Lermumerman and Nitzschia clostertum) were evaluated under the UV-B radiation treatment using the ecotoxicology methods.The results showed that the feeding of the rotifer Brachionus plicatilis was inhibited significantly by UV-B radiation treatment(P0.05),Compared with control,the filtering rate and feeding rate of the rotifer Brachionus plicatilis were significantly lower(P0.05)with increasing dose of UV-B radiation.In addition,the filtering rate and feeding rate of the rotifer Brachionus plicatilis were different with every strain of the marine microalgae.This result showed that the rotifer Brachionus plicatilis was selectivity with the six strains of the marine microalgae.