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NOAA Funds Response to Toxic Algae Bloom in Gulf of Maine

As a first-ever precautionary response to an unprecedented bloom of the toxic alga Pseudo-nitzschia in its waters, Maine officials have temporarily banned shellfish harvesting along part of the coast.  A survey cruise and a volunteer monitoring network, both funded by the National Centers for Coastal Ocean Science, identified the bloom species and mapped where and how big […]

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Algal Bloom Species with Two Deadly Toxins Could Disrupt Marine Food Web | UConn Today

When tiny aquatic organisms reproduce in large amounts, algal blooms occur that take over portions of open water up to hundreds of miles in area. And when these oceanic plankton happen to be the toxic kind, they can be deadly to other living things crossing their path. One of the most poisonous and abundant of […]

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Researchers discover that red tide species is deadlier than first thought – Phys.org

A University of Connecticut researcher and his team have discovered that a species of tiny aquatic organism prominent in harmful algal blooms sometimes called “red tide” is even deadlier than first thought, with potential consequences for entire marine food chains. Professor Hans Dam and his research group in the school’s Department of Marine Sciences have […]

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New England Red Tide’s Defenses Influence Bloom Duration

In a new paper, researchers funded by the National Centers for Coastal Ocean Science discovered that the New England red tide species called Alexandrium releases a variety of compounds to kill its predators and lengthen bloom duration. In this case, the substance they use for defense is not the potent neurotoxin that accumulates in shellfish […]

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Research Promotes Method to Slow the Spread of Encrusting Invasive Species

Dredging channels and cleaning boat hulls or fishing gear in or near established Didemnum colonies can create fragments of these invasive organisms that survive in the water column up to four weeks, disperse long distances, and even reproduce before resettling, possibly in new areas, according to NOAA research. The article suggests that cleaning equipment on land and reducing bottom disturbance […]

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First Report of Saxitoxin Exposure in Endangered Shortnose Sturgeon

The likelihood of frequent exposure to saxitoxins in the New England region, specifically in Maine, may be a serious long-term health threat to shortnose sturgeon (Acipenser brevirostrum). NCCOS scientists have now confirmed the presence of saxitoxins in this endangered species and provided evidence of food web transfer of these toxins produced by the harmful algae […]

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