News tagged with algal blooms
Did Phosphorus Trigger Complex Evolution -- and Blue Skies?
(PhysOrg.com) -- The evolution of complex life forms may have gotten a jump start billions of years ago, when geologic events operating over millions of years caused large quantities of phosphorus to wash ...
Space & Earth / Earth Sciences
May 10, 2010 |
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NASA study finds Earth's lakes are warming
(PhysOrg.com) -- In the first comprehensive global survey of temperature trends in major lakes, NASA researchers determined Earth's largest lakes have warmed during the past 25 years in response to climate ...
Space & Earth / Earth Sciences
Nov 23, 2010 |
3.8 / 5 (14) |
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Iron stimulates blooms of toxin-producing algae in open ocean, study finds
(PhysOrg.com) -- A team of marine scientists has found that toxin-producing algae once thought to be limited to coastal waters are also common in the open ocean, where the addition of iron from natural or ...
Space & Earth / Earth Sciences
Nov 08, 2010 |
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Scientists Use Squid Ink to Draw its Jurassic Period Owner
(PhysOrg.com) -- Scientists digging in Trowbridge, Wiltshire in England have uncovered the fossilized remains of a prehistoric squid-like creature that lived in the Jurassic period around 150 million years ...
Other Sciences / Archaeology & Fossils
Aug 28, 2009 |
3.9 / 5 (9) |
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'Hot spot' for toxic harmful algal blooms discovered off Washington coast
A part of the Strait of Juan de Fuca, which separates Washington state from Canada's British Columbia, is a potential "hot spot" for toxic harmful algal blooms affecting the Washington and British Columbia coasts.
Jan 30, 2009 |
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Carbon, nitrogen link may provide new ways to mitigate pollution problems
A new study exploring the growing worldwide problem of nitrogen pollution from soils to the sea shows that global ratios of nitrogen and carbon in the environment are inexorably linked, a finding that may ...
Apr 21, 2010 |
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Study links seabird deaths to soap-like foam produced by red-tide algae
In late 2007, hundreds of dead and stranded seabirds washed up on the shores of Monterey Bay, their feathers saturated with water and coated with an unknown substance. After an intensive investigation, scientists determined ...
Feb 21, 2009 |
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Research finds mangroves being fed to death
(PhysOrg.com) -- New UQ Science research has found the increase in nutrients coming out of our river systems is putting pressure on our mangrove forests and making them far more susceptible to environmental ...
May 19, 2009 |
4.2 / 5 (5) |
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Climate projections show human health impacts possible within 30 years
A panel of scientists speaking today at the annual meeting of the American Association for the Advancement of Science (AAAS) unveiled new research and models demonstrating how climate change could increase ...
Feb 19, 2011 |
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Changing climate will lead to devastating loss of phosphorus from soil
Crop growth, drinking water and recreational water sports could all be adversely affected if predicted changes in rainfall patterns over the coming years prove true, according to research published this month in Biology an ...
Apr 15, 2009 |
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Ocean acidification may contribute to global shellfish decline
Relatively minor increases in ocean acidity brought about by high levels of carbon dioxide have significant detrimental effects on the growth, development, and survival of hard clams, bay scallops, and Eastern ...
Space & Earth / Earth Sciences
Oct 26, 2009 |
2.7 / 5 (7) |
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Climate change causes harmful algal blooms in North Atlantic: study
Warming oceans and increases in windiness could be causing of an abundance of harmful algal blooms in the North Atlantic Ocean and North Sea, according to new research.
Feb 13, 2012 |
4.8 / 5 (4) |
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New way of removing excess nitrogen from the environment
Excess nitrogen from agricultural and urban lands is contaminating groundwater, streams, lakes and estuaries, where it causes harmful algal blooms and contributes to fish kills.
Nov 01, 2010 |
4.5 / 5 (4) |
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New research could help predict red tide
(PhysOrg.com) -- Not far beneath the ocean's surface, tiny phytoplankton swimming upward in a daily commute toward morning light sometimes encounter the watery equivalent of Rod Serling's Twilight Zone: a ...
Biology /
Feb 19, 2009 |
4.3 / 5 (4) |
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Storm killers: Earth Scan Lab tracks cold water upwellings in Gulf
Complex interactions between the ocean and overlying atmosphere cause hurricanes to form, and also have a tremendous amount of influence on the path, intensity and duration of a hurricane or tropical weather event. As researchers ...
Space & Earth / Earth Sciences
Sep 28, 2009 |
4 / 5 (4) |
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Algal bloom
An algal bloom is a rapid increase in the population of algae in an aquatic system. Algal blooms may occur in freshwater as well as marine environments. Typically, only one or a small number of phytoplankton species are involved, and some blooms may be recognized by discoloration of the water resulting from the high density of pigmented cells. Although there is no officially recognized threshold level, algae can be considered to be blooming at concentrations of hundreds to thousands of cells per milliliter, depending on the severity. Algal bloom concentrations may reach millions of cells per milliliter. Algal blooms are often green, but they can also be yellow-brown or red, depending on the species of algae.
Bright green blooms are a result of blue-green algae, which are actually bacteria (cyanobacteria). Blooms may also consist of macroalgal, not phytoplankton, species. These blooms are recognizable by large blades of algae that may wash up onto the shoreline. "Black water" is a dark discoloration of sea water, first described in the Florida Bay in January 2002.
For more information about Algal bloom, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
