Red Tide

This is an article that discusses the correlation between Fe-chelates and growth of red tide algae. "Moreover, microbial siderophores may play an important role in controlling the uptake of iron complexed with organic materials that exist in coastal water and the formation of red tides in coastal areas." This correlation can be used to perhaps investigate ways to control the presence of these siderophores that could possible lead to a reduction in red tides. More must be learned about the causation and prevention of red tides as much is still a mystery, although this is a start.
"Complexation of Iron by Microbial Siderophores and Effects of Iron Chelates on the Growth of Marine Microalgae Causing Red Tides" by Kanako Naito, Ichiro Imai and Hiroyuki Nakahara from Laboratory of Marine Environmental Microbiology in Phycological Research 2008.