Biologists now say that red tide algal blooms could be the ‘killer of the ocean world’ – io9

The revelation came after Dam’s discovery that the plankton produces not one, but two deadly toxins. The red tide, more formally known as Alexandrium tamarense, produces a double-shot of chemicals — one that’s deadly to large organisms, and one that’s deadly to small predators. Because of its ability to kill both of these groups of animals, it has lead Dam to label it as the potential “killer of the ocean world.”