storm washed up on the black sea a toxic blue-green algae (nodularia spumigena

ecological disaster water bloom algae toxic black sea bluegreen spumigena alga algal pollution bacteria blue green cell chlorophyll colony cyanobacteria cyanobacterium genus interference micro microbiology microorganism microscopic nodularia pellicle phytoplankton plankton plant protozoa singlecelled toxin underwater