(Photograph courtesy P.J. Hahn, Plaquemines Parish)
A huge fish kill in a Louisiana marsh was likely caused by annual low-oxygen conditions—but the Gulf oil spill may have been an additional "insult," experts say.
The thousands of belly-up fish were discovered Friday in the Bayou Chaland
The die-off occurred during a time of year when a giant low-oxygen "dead zone" regularly forms off the Gulf, according to Prosanta Chakrabarty, a fish biologist at Louisiana State University in Baton Rouge.
Agricultural runoff into the Mississippi River contains nutrients that support the growth of oxygen-hungry algae, which can choke out other sea life.
The Gulf oil spill expanded this dead zone when a surge in oil-eating bacteria gobbled up even more oxygen...
And this is the reality...What we can due to the wildlife in the water.
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