Santa Cruz -
Scientists have detected high levels of the freshwater algae toxin, microcystin, in shellfish in San Francisco Bay. Although coastal waters are monitored for toxins produced by marine algae, they are not routinely tested for freshwater algae toxins.
Rising CO2 levels will eventually force many of the Earth's life forms to adapt or end up being lost. One species, the blue-green algae, of which there are many toxin-producing varieties, is adapting very quickly, and that is not a good thing.
Toxic cyanobacteria blooms, or blue-green algae blooms are often poorly monitored and have become an under-appreciated health risk, not only in the U.S. but worldwide. There are several factors contributing to the concerns.
A new strain of cyanobacteria has been discovered in the partially scorched waters of Lake Alchichica in Mexico. The bacteria are believed to be unique since they produce a unique endoskeleton comprising of calcified lumpy granules.
It has long been assumed that oxygen-producing cyanobacteria were responsible for the appearance of oxygen in the earth's atmosphere. If that theory is correct, then how is it possible that they appeared at least 200 million years before the oxygen?