Cyanotoxin which is why they are usually green or blue. Cyanobacteria are found almost everywhere; in oceans, lakes and rivers as well as on land. They flourish in Arctic and Antarctic lakes, hotsprings and wastewater treatment plants. They even inhabit the fur of polar bears, to which they impart a greenish tinge. Cyanobacteria produce potent toxins, but they also produce helpful bioactive compounds, including substances with antitumour, antiviral, anticancer, antibiotic and antifungal activity, UV protectants and specific inhibitors of enzymes. Cyanotoxins are often implicated in what are commonly called "red tides" or "harmful algal blooms". Lakes and oceans contain many single-celled
Great Lakes Maritime Academy licensing on both the Great Lakes and the oceans along with an additional credential of First Class Great Lakes Pilot. The academy is located in Traverse City, Michigan, on Grand Traverse Bay in Lake Michigan. The Great Lakes Maritime Academy was established in 1969 to provide education and training to those wanting a career in the merchant marine. The academy trains mates (pilots), and maritime engineers. The summer of 2002 brought the arrival of the training ship, a former Navy vessel, now named the T/S "State of Michigan". The academy moved into the new facility late fall of 2003. Originally