Red Tides – Are We Fertilizing Our Oceans To Death?
Source: http://otlibrary.com/what-is-a-red-tide/ In November 2017 more than 300 turtles were found floating dead on the Pacific near the coast of El Salvador . Such occurrences had been observed in previous years with smaller numbers of 120 between 200 dead animals. Whereas in past cases the cause for this remained unresolved or related to savage fishermen disposing unwanted haul back into the ocean, a monthlong catching moratorium that was active during the time the turtle die-off was discovered turned the attention to the bloom of toxic harmful algae. Algae blooms are a natural component of marine ecosystems. The majority is non-hazardous to living organisms and serves as food source for sea animals. However, certain combinations of nutrients in the water, temperature and oceanic currents can favour the growth of harmful algae blooms (HAB), also considered as red tides, given the colour of the algae turning the water red (Hallegraeff, 1993). Even though HABs hav