HOME >> BIOLOGY >> NEWS
Black water turns the tide on Florida coral

In early 2002, a patch of "black water" spanning over 60 miles in diameter formed off southwestern Florida and contributed to severe coral reef stress and death in the Florida Keys, according to results published from research funded by NASA, the U.S. Environmental Protection Agency and the National Oceanic and Atmospheric Administration (NOAA). The "black water" contained a high abundance of toxic and non-toxic microscopic plants.

Chuanmin Hu and other colleagues at the Institute for Marine Remote Sensing of the University of South Florida (USF), St. Petersburg, Fla., and colleagues from the Florida Fish and Wildlife Conservation Commission (FFWCC) and the University of Georgia, co-authored an article on this phenomenon that appeared as the cover story of a recent issue of the American Geophysical Union's Geophysical Research Letters.

"The water appeared black in satellite imagery because the concentration of the microscopic plants and other dissolved matters were high," Hu said. Because plants and dissolved matter absorb sunlight, they reduce the amount of light normally reflected from the ocean.

When a red-tide bloom occurs the water takes on various hues of red or brown. While not all microscopic plants contribute to red tides, the darker hue created by both the plankton and the harmful algal blooms made the water appear black when seen from the satellite.

When Hu and his colleagues examined the data collected by divers from the dark water area in the Florida Keys, they discovered a 70 percent decrease in stony coral cover, a 40 percent reduction of coral species, and a near-elimination of sponge colonies at two reef sites after the dark water passed. By examining satellite images and field survey data, the authors concluded that the coral reef ecosystem was stressed by microscopic organisms and toxins contained in the dark water.

The "black water" event caused alarm among local fishermen, divers, and the public, as the
'"/>

Contact: Rob Gutro
rgutro@pop900.gsfc.nasa.gov
301-286-4044
NASA/Goddard Space Flight Center
21-Apr-2003


Page: 1 2 3

Related biology news :

1. Black raspberries a potentially powerful agent in fight against colon cancer
2. Black raspberries show multiple defenses in thwarting cancer
3. UCSFs Elizabeth Blackburn Receives Two Major Science Awards
4. Could A Nasal Vaccine Finally Get Rid Of The Black Death?
5. Jefferson Scientists Use Gene Repair Technique To Change Albino Mice Cells To Black
6. Blacks Environmental Concerns Equal/Exceed Whites
7. New Arizona State center brings science to policy on issues of water resources and urban growth
8. Posters highlight water, energy and other natural resource research
9. Wastewater could treat itself, power city
10. Byproduct of water-disinfection process found to be highly toxic
11. Sandia experiments may reduce possibility of future water wars

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/28/2020)... ... February 27, 2020 , ... ... portfolio company. Established to develop and commercialize a manufacturing platform for the ... State University (NMSU). The patent-pending technology results in membranes with controllable pore ...
(Date:2/21/2020)... ... 2020 , ... Gateway Genomics , a leading developer of direct-to-consumer genetic ... annual Inc. 5000 list of fastest-growing private companies in the United States. ... the 17th fastest-growing private company in the state, and #1 in the Health sector. ...
(Date:2/13/2020)... Fla. (PRWEB) , ... February 13, 2020 , ... ... Annual SCOPE Summit , geared to clinical operations executives and focusing on all ... of effective project management, portfolio management, patient engagement, and more. , “We ...
Breaking Biology News(10 mins):
(Date:1/27/2020)... ... January 27, 2020 , ... Cerebyte, the leader in “instant ... today announced the availability of neuroscience of transformational leadership workshops. These highly interactive, ... of leadership and change research to become great transformational leaders. The workshops ...
(Date:1/24/2020)... ... January 24, 2020 , ... ... companies in biotechnology, diagnostics, therapeutics, laboratory and clinical services during the first two ... around the world. And as Slone Partners celebrates its 20th anniversary ...
(Date:1/22/2020)... (PRWEB) , ... January 20, 2020 , ... ... announced a partnership with WAVE Electronics, the largest independent electronics distributor in the ... to purchase Brilliant Smart Home Systems with leading smart home products from a ...
(Date:1/22/2020)... FARMINGTON, Conn. (PRWEB) , ... January 21, 2020 , ... ... Cell (CTC) liquid biopsy from a simple blood draw, today announced the sale of ... UConn Health. The Rare Scope will be used in clinical cancer research. , “The ...
Breaking Biology Technology:
Cached News: