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What happens to marine life when oxygen is scarce?

A new study co-led by WHOI postdoctoral scholar Maggie Johnson looks closely at the changes occurring in both coral reef and microbial communities near Bocas del Toro during sudden hypoxic events, which occur when there is little to no oxygen in a given area of water.

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Study weighs deep-sea mining’s impact on microbes

The essential roles that microbes play in deep-sea ecosystems are at risk from the potential environmental impacts of mining, according to a new paper. The study reviews what is known about microbes in these environments and assesses how mining could impact their important environmental roles.

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How microbes reflect the health of coral reefs

A collaborative study compared seawater from 25 reefs in Cuba and the U.S. Florida Keys varying in human impact and protection, and found that those with higher microbial diversity and lower concentrations of nutrients and organic carbon—primarily caused by human activities—were markedly healthier.

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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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For Zombie Microbes, Deep-Sea Buffet is Just Out of Reach

For Zombie Microbes, Deep-Sea Buffet is Just Out of Reach

Far below the ocean floor, sediments are teeming with bizarre zombie-like microbes. Although they’re technically alive, they grow in slow motion, and can take decades for a single cell to divide – something their cousins at the surface do in a matter of minutes. A new study from the Woods Hole Oceanographic Institution (WHOI) is beginning to pick apart how they survive by examining their source of food, nearby molecules of organic carbon. The study helps further our understanding of the limitations of life on Earth and could help inform how life might exist on other planets.

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Study Reveals Corals’ Influence on Reef Microbes

Study Reveals Corals' Influence on Reef Microbes

As they grow, corals are bathed in a sea of marine microbes, such as bacteria, algae, and viruses. While these extremely abundant and tiny microorganisms influence coral communities in a variety of ways, a new study by researchers at the Woods Hole Oceanographic Institution (WHOI), the Bermuda Institute of Ocean Sciences (BIOS) and University of California, Santa Barbara (UCSB) reveals that corals also have an impact on the microbes in waters surrounding them

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New Collaborative Effort to Gauge National Marine Biodiversity

Woods Hole Oceanographic Institution (WHOI) researchers are part of a collaborative effort to understand and monitor changes in marine biodiversity within U.S. coastal waters. Marine biodiversity is a key indicator of ocean health and critical to sustaining natural resources such as fisheries.

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A ‘B-12 Shot’ for Marine Algae?

Studying algal cultures and seawater samples from the Southern Ocean off Antarctica, a team of researchers from Woods Hole Oceanographic Institution (WHOI) and the J. Craig Venter Institute have revealed a key cog in the biochemical machinery that allows marine algae at the base of the oceanic food chain to thrive. They have discovered a previously unknown protein in algae that grabs an essential but scarce nutrient out of seawater, vitamin B12.

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New Technique Offers Clues to Measure Ocean Deoxygenation

New Technique Offers Clues to Measure Ocean Deoxygenation

The living, breathing ocean may be slowly starting to suffocate. More than two percent of the ocean – ™s oxygen content has been depleted during the last half century, according to reports, and marine – œdead zones –  continue to expand throughout the global ocean. This deoxygenation, triggered mainly by more fertilizers and wastewater flowing into the ocean, pose a serious threat to marine life and ecosystems.

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