← Home Postcards from Space
Mysterious Black Water in Florida Bay

Mysterious Black Water in Florida Bay

Credit & copyright: ORBIMAGE, SeaWiFS, NASA

What is causing the water in Florida Bay to turn black? The mysterious black color could be seen as early as last December in images taken by the SeaWIFS instrument on board the Earth-orbiting SeaStar satellite. During the darkest period in February, when the above image was taken, visibility in the usually transparent/turquoise water dropped below three meters. Samples have been taken and are currently being analyzed. Early tests show the black water has normal salinity and oxygen and might be an unusual nontoxic algae bloom. Whatever the cause, the black water has real ecological and economic consequences, as normally abundant fish are completely absent. More recent SeaWIFS images show the black water to be breaking up into smaller pockets.

Source: NASA Astronomy Picture of the Day

Want to receive these daily?

Sign up to get a beautiful NASA image delivered to your inbox every morning.

Subscribe Now →