Possibility for Water Quality Biocontrol: Observation of Microcystin Transfer in the “Cyanobacteria–Cladohorn–Fish” Food Chain

Microcystins appear to be considered one of the most dangerous cyanobacterial toxins in world. The accumulation and change microcystins MC-LR MC-RR “cyanobacteria–cladocera–fish” food chain were studied. Microcystis aeruginosa was fed Moina macrocopa at three densities, 5.0 × 103, 105, 106 cells/mL, then passed Cyprinus flammans. total amount MCs cyanobacteria cell extract increased with increasing density. content M. feeding density aeruginosa. In final stage experiments, only MC that could transmitted by persisted red carp. this study, changes concentrations liver carp seem indicate some kind transformation or degradation mechanism. It shows possibility concentration-controlled biodefense eutrophic waters.