Harmful Algae & Red Tides


Watch What You Eat

Shellfish

Harmful Algal Blooms (HABs) can take a variety of forms, each with a distinct and disturbing impact on human health.…

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The Recipe for a Harmful Algal Bloom

The Recipe for a Harmful Algal Bloom

Harmful algal blooms can produce toxins that accumulate in shellfish and cause health problems and economic losses. They have increased in strength and frequency worldwide. Can we get advance warnings of when and where they will occur?

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Setting a Watchman for Harmful Algal Blooms

Setting a Watchman for Harmful Algal Blooms

As harmful algal blooms are becoming more frequent and severe worldwide, researchers in the lab of WHOI biologist Don Anderson are testing an array of new instruments that can be used in early-warning monitoring systems for coastal waters.

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Gulf of Maine Red Tide Bloom Expected to Be Similar to Past Three Years

New England’s spring and summer red tides will be similar in extent to those of the past three years, according to the 2015 Gulf of Maine red tide seasonal forecast. The forecast is the eighth seasonal Gulf of Maine red tide forecast funded by NOAA and issued by scientists from the Woods Hole Oceanographic Institution and North Carolina State University.

The forecast is part of a larger NOAA effort to deliver ecological forecasts that support human health and well-being, coastal economies, and coastal and marine stewardship.

Red tide, a type of harmful algal bloom (HAB) caused by the alga Alexandrium fundyense, produces a toxin that can lead to paralytic shellfish poisoning, which can result in serious or even fatal illness in humans who eat contaminated shellfish. In 2005, an unusually large red tide event caused $23 million in lost shellfish sales in Massachusetts and Maine.

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