Coastal areas around New England should prepare for a “moderate” red tide this spring and summer, according to scientists from the Woods Hole Oceanographic Institution. This seasonal forecast is based on samples of algal cysts taken from the ocean floor last year as indicators of this year’s bloom severity. For the first time, the team also used [...]
The mysterious red tide toxin that has killed a record number of manatees and brought countless dead fish to Southwest Florida beaches over the past few months could finally have an explanation: The algae that produce the toxin are hungry. A significant new study of the algae, Karenia Brevis (sic), suggests that the organisms release [...]
The North Carolina Biotechnology Center funded NOAA and academic researchers to develop a training facility for public health officials and resource managers in advanced molecular methods to detect pathogens and harmful algae species more quickly and effectively. The first workshop, held March 11 – 15, 2013, covered quantitative polymerase chain reaction techniques to detect Enterococcus, the [...]
A NOAA method to test for paralytic shellfish toxins will be demonstrated to scientists, regulators, policymakers, and industry representatives in Sydney, Australia from March 18-22. The technique, which was recently accepted as an Official Method of Analysis by the Association of Official Analytical Chemists, is a candidate for replacing the current approach for regulatory testing [...]
For those who live and play on the shores of Lake Erie, the spring rains that will begin falling here soon are less a blessing than a portent. They could threaten the very future of the lake itself. Lake Erie is sick. A thick and growing coat of toxic algae appears each summer, so vast [...]
A species of algae responsible for red tides plaguing Gulf coast communities protects itself by becoming highly toxic when it’s hungry and vulnerable to being eaten by predators, say scientists from NOAA’s National Centers for Coastal Ocean Science and North Carolina State University. The red tide organism, called Karenia brevis, reacts to low levels of nutrients–particularly phosphorus–by [...]
A single-celled plant known as Gambierdiscus is responsible for the most common cause of harmful algae poisoning worldwide: ciguatera. The algae’s potent neurotoxin–called ciguatoxin–is found in over 400 species of fish and is conservatively estimated to sicken more than 50,000 people every year. Two years ago, researchers from NOAA’s National Centers for Coastal Ocean Science [...]
As part of a pilot initiative known as “beach hazard statements,” NOAA’s National Weather Service in Tampa Bay began to issue red tide warnings to beachgoers in an area where a bloom of algae is responsible for causing fish kills and breathing problems in people. While the announcement is new, the forecasts themselves are well [...]