Harmful algae blooms across the world – 09/09/2005

  • November 11, 2013 at 11:11 pm #980

    Hi Folks
    Normally (pre-chemtrails), I would agree, a passing red tide is
    fairly harmless. But the number of months and the extensive number
    of locations around the country, of these various algea out-breaks.
    The so called experts need to brush up on their science.
    Naturally, these folks are interested in making money, that’s their
    business ~ what they report might be our business.
    Best to all,
    Seeing Red: Rosenstiel School Team Addresses Harmful Algal Blooms
    on Gulf Coast

    Across the world, harmful algal blooms (HABs) appear to be on the
    rise, both in frequency and intensity, and itís impacting our
    health, economy, and marine life. Along Floridaís Gulf Coast, HABs
    known as red tides continue to plague the region. Scientists at
    Rosenstiel School are leading the team investigating the phenomenon
    and its impacts on human health.

    HABs are generally caused by a rapid, intense bloom of algae. In the
    Gulf of Mexico, the algae are typically a single-celled organism
    known as Karenia brevis. Red tides and algal blooms in general are a
    natural phenomenon; the first scientific documentation of a red tide
    occurred in Venice, Fla., in 1947. Anecdotal reports date back to
    the mid-1800s, in which red tides were blamed for lining beaches
    with thousands of dead fish and provoking human illness.
    K. brevis, produces a potent neurotoxin that is released into the
    water and often into the air. Finfish may be killed either by the
    toxin or by low oxygen levels at the seafloor. Shellfish are
    themselves apparently unaffected, however they do accumulate the
    neurotoxin and thus pose a human health risk. Florida monitors
    commercial shellfish beds, closing them to harvesting during red

    Signs of neurotoxin poisoning are tingling in the mouth and fingers,
    loss of coordination, hot and cold flashes, and diarrhea. People are
    also at risk from inhaling airborne toxin when waves and winds carry
    contaminated air onshore, and they may experience respiratory
    irritation or have difficulty breathing. Generally these symptoms
    are temporary, but for people with chronic lung disease, it can be
    deadly. Harmful algal blooms now occur in nearly every coastal area
    around the world, so the economic impact and health risks continue
    to grow. In addition to health care costs, HABS impact commercial
    and recreational fishing, tourism, food service industries and other
    businesses located along the coast.

    Rosenstiel School: A Leader in Red Tide Research

    In 2004, the National Science Foundation and the National Institute
    of Environmental Health Sciences formally recognized Rosenstiel
    Schoolís leadership role in harmful algal bloom research. It
    dedicated $5 million annually for the next five years to four Oceans
    and Human Health Centers in the country — the Rosenstiel School
    hosting the Center for Subtropical and Tropical Oceans and Human
    Health Research. This center formalizes the schoolís ongoing
    collaborative work in HABs, marine pathogens and the oceanís
    potential for drug discovery.
    Keeping a Watchful Eye…Everywhere

    Satellite imagery from Rosenstiel Schoolís Center for Southeastern
    Tropical Advanced Remote Sensing (CSTARS) provides real-time, high-
    resolution imagery that can help build regional ìclimatologyî and
    identify and track unusual conditions. Rosenstiel School researchers
    also use this remote sensing to procure and analyze surface
    meteorological data to get a better sense of the weather conditions
    that seem conducive to red tides. Additionally, unique monitoring
    equipment has been placed on channel markers and on boat keels that
    can test water samples for K. brevis. This same equipment is planned
    for an autonomous underwater vehicle as well. This monitoring helps
    give commercial fishermen, businesses and citizens advanced warning
    that red tide has entered the area and allows them to prepare.
    Breathing Easier

    For four years, an interdisciplinary, interagency team of scientists
    has studied the health effects of aerosolized red tide toxins as
    well as neurotoxic poisoning in humans who consume affected
    shellfish. Because the symptoms can be associated with other
    ailments and health care providers have only been reporting cases to
    an official registry since 1999, this work has been pioneering.
    Rosenstiel School has been instrumental in improving the science
    behind treatments and prevention of red-tide related illness.
    K. brevis: The Bad and the Good?

    While all agree that K. brevis produces brevetoxin, the potent fish
    killer and food poison, there remain many unanswered questions that
    might be addressed at the molecular level. Thanks to new microarray
    technology, Rosenstiel researchers can now study this organism and
    its toxins at the DNA level. Working with their collaborators,
    Rosenstiel researchers may reveal what factors help trigger and feed
    blooms. And, just as many people were surprised that botulism would
    be found to hold therapeutic potential, some see red tideís
    brevetoxin as equally promising. Ironically enough, brevetoxin
    derivatives have been patented to treat lung diseases, such as
    cystic fibrosis.

    Because of its multidisciplinary approach and its resolve to cull
    experts and decisionmakers at government, academic, and
    environmental organizations, Rosenstiel School is at the heart of
    addressing the innumerable questions that red tide poses and
    epitomizes the way ahead.

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