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Latest Karenia brevis Stories

Limited Phosphorus Makes Gulf Of Mexico Algae Even Meaner
2013-03-13 10:27:32

North Carolina State University When Gulf of Mexico algae don't get enough nutrients, they focus their remaining energy on becoming more and more poisonous to ensure their survival, according to a new study by scientists from North Carolina State University and the National Oceanic and Atmospheric Administration. The study shows that harmful and ubiquitous Karenia brevis algae, which cause red tide blooms across the Gulf of Mexico, become two to seven times more toxic when levels of...

Blue Light Culprit In Red Tide Blooms
2012-02-24 04:57:10

Each year, phytoplankton blooms known as "red tides" kill millions of fish and other marine organisms and blanket vast areas of coastal water around the world. Though the precise causes of red tides remain a mystery, a team of researchers in the United States and Spain has solved one of the main riddles about these ecological disasters by uncovering the specific mechanism that triggers phytoplankton to release their powerful toxins into the environment. "Previous theories about how...

2008-07-23 03:00:35

By Reich, A Blackmore, C; Hopkins, R; Lazensky, R; Geib, K; Ngo- Seidel, E A "red tide" is a harmful algal bloom that occurs when toxic, microscopic algae in seawater proliferate to a higher-thannormal concentration (i.e., bloom), often discoloring the water red, brown, green, or yellow. Red tides can kill fish, birds, and marine mammals and cause illness in humans (1). Florida red tide is caused by the dinoflagellate Karenia brevis, which produces toxins called brevetoxins and is most...

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2008-04-12 00:30:00

Novel instrument developed at WHOI detects harmful algae in coastal waters Through the use of an automated, underwater cell analyzer developed at the Woods Hole Oceanographic Institution (WHOI), researchers and coastal managers were recently able to detect a bloom of harmful marine algae in the Gulf of Mexico and prevent human consumption of tainted shellfish. Shellfish beds in parts of Texas have been closed for a month, though they are expected to re-open in the next few days. Working...

2005-09-28 07:14:33

SOUTH PADRE ISLAND, Texas -- While Hurricane Rita struck days ago and hundreds of miles away, the storm is still creating problems on the southern tip of Texas. Rita's path left South Texas hot and dry - conditions ideal for one of the worst red tides in memory - and swells from the storm have created fears that the toxic algae could spread. "The red tide likes hot weather, it likes a certain salinity, it likes low wind," said Sonia Gallegos, a scientist at the Naval Research Lab at Stennis...


Word of the Day
holluschickie
  • A 'bachelor seal'; a young male seal which is prevented from mating by its herd's older males (mated bulls defending their territory).
This comes from the Russian word for 'bachelors.'
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