Friday, November 9, 2007

Research news: Florida Red Tides Linked To Mississippi River Nutrient Outflow

The News:
Florida Red Tides Linked To Mississippi River Nutrient Outflow.
ScienceDaily (Nov. 9, 2007) — A new NOAA research model indicates nutrients flowing from the Mississippi River may stimulate harmful algal blooms to grow on the continental shelf off the west coast of Florida. The peer-reviewed hypothesis is being published in a special issue on Florida red tide in the journal "Continental Shelf Research."
According to the model, algal blooms form on the Florida coast because of weather and gulf currents. The algae grows offshore, supplied with additional nutrients that appear to have originated from the Mississippi River, in a process driven by normal seasonal wind patterns.
"We found that the concentrations of nutrients needed to start the Florida red tides is much lower than previously suspected," said NOAA oceanographer and lead author of the paper, Richard Stumpf, Ph.D. "The hypothesis means that offshore areas should be examined for both small increases in nutrients and modest concentrations of the algae at the start of the bloom season."

The Research:
Read the research behind this story in the journal Continental Shelf Research.

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