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Marine Chemistry & Geochemistry


The oceans are losing oxygen, and faster than we thought

Low-oxygen “dead zones” and phytoplankton blooms

WHOI scientists weigh in on a new ICUN report highlighting a 2% decline in marine oxygen levels between 1960 and 2010. The loss of oxygen has triggered an expansion of marine dead zones throughout the global ocean that has put marine life and ecosystems in peril.

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The Ocean Twilight Zone’s crucial carbon pump

Ken Buesseler

When CO₂ enters the ocean, where does this heat-trapping gas go? WHOI geochemist investigates how much carbon from the surface ocean is dispatched to the ocean twilight zone–the midlayer of the ocean–and on to the deep ocean.

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Ocean acidification gets a watchful eye in New England aquaculture ‘hot spot’

Shells

Shellfish aquaculture is thriving in New England, but future growth in the industry could be stunted as coastal waters in the region become more acidic. Researchers at WHOI have developed a way to link nutrient load reductions to improvements in the health of Buzzards Bay, Massachusetts, which may an important step toward cleaner and less acidic harbors in the Baystate.

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Putting the ‘nuclear coffin’ in perspective

WHOI geochemist Ken Buesseler discusses marine radioactivity monitoring in the Marshall Islands atop Runit Dome

WHOI chemist and marine radioactivity expert shares his thoughts about radioactivity waste leaking from Runit Dome—a bomb crater filled with radioactive soil in the Marshall Islands that is now being penetrated by rising sea levels

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New Study Finds Distinct Microbes Living Next to Corals

Laura Weber collects a syringe sample from seawater surrounding an Orbicella faveolata coral colony in Jardines de la Reina, Cuba.

WHOI scientists distinct discover microbes living just a few centimeters from the surface of corals near the southern coast of Cuba. The discovery may yield clues about the ecological functions of microbes, and how they find and infect coral colonies.

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Remote Access Sampler (RAS)

The Remote Access Sampler (RAS) is a deep water or coastal time series water sampler that collects samples for biological, dissolved major and minor nutrient, dissolved trace metal, or dissolved organic carbon analyses.

McLane Remote Access Samplers are designed to collect in-situ water samples in support of oceanographic research projects and environmental monitoring programs. The RAS 3-48-100 and RAS 3-48-500 collect ambient water…

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A DISCO in the Ocean

A DISCO in the Ocean

To investigate coral bleaching, WHOI scientists figure out a novel way to take direct measurements in the ocean of superoxide, a key molecule that vanishes almost as soon as it is made.

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