All phytoplankton articles
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NewsIn African lakes, microbes living on algae reduce a powerful greenhouse gas
Lakes emit as much methane as agriculture. Researchers have shown that, in 79 African lakes, bacteria living on the surface of microalgae act as a natural filter. The greener the water becomes, the more these methanotrophs break down this powerful greenhouse gas.
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NewsCurrents in an Arctic sea accelerate the sinking of carbon-carrying phytoplankton
Documenting the seasonal fate of these tiny marine organisms is a step toward understanding how ecosystems in the world’s fastest-warming region may change as ice recedes.
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NewsAdding iron to the ocean can remove CO2 – but at what cost to nature?
Adding iron to the ocean can cause plankton to absorb more CO2 from the atmosphere. However, the effect depends on where in the world the method is used, and it can have far-reaching consequences for marine ecosystems and food chains.
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NewsPhytoplankton apply the onion skin principle
The phycosphere, which surrounds ocean microalgae, is one of the most important marketplaces for organic carbon in the oceans. A new study of chemical signals in this region suggests that the phycosphere consists of multiple layers.
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NewsDecline in plankton across North East Atlantic sends stark warning for ocean health
A new study has used more than six decades of data to show that plankton abundance is declining across vast swathes of the North East Atlantic – a region covering the Atlantic Ocean from Portugal to Norway, and the entirety of the North Sea.
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NewsStudy: China reverses widespread freshwater deoxygenation via wastewater management
Freshwater ecosystems worldwide have been suffering from declining oxygen levels that threatens biodiversity, fisheries, and ecosystem stability. However, a new study offers hope: targeted nutrient management via wastewater control can reverse this trajectory, even in the face of rapid climate warming.
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News The hidden carbon sponges: Karst reservoirs proven to be powerful climate allies
A new study provides a mechanistic explanation for why reservoirs in karst landscapes are exceptionally effective carbon sinks. The research demonstrates that these unique ecosystems not only capture vast amounts of carbon but also lock it away in a highly stable, long-lasting form.
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NewsInternational award honors microbiology researchers for diatom research
Two microbiology researchers from the University of Tennessee, Knoxville, are being honored with an international award that recognizes their insights into aquatic microbes that are vital to Earth’s ecosystems.
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NewsStudy provides detailed assessment of shifts in toxin producing phytoplankton abundance
Researchers in the UK have shown how the distributions of two phytoplankton groups – known to produce natural toxins that can halt shellfish harvesting – have changed in the North East Atlantic over the last six decades.
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NewsClimate change may produce ‘fast-food’ phytoplankton
Scientists report that as sea surface temperatures rise over the next century, phytoplankton in polar regions will adapt to be less rich in proteins, heavier in carbohydrates, and lower in nutrients overall.
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NewsWill melting glaciers slow climate change? A prevailing theory is on shaky ground
In what researchers describe as the most accurate measurement of iron inputs from a glacier in Antarctica, marine scientists have discovered that meltwater from an Antarctic ice shelf supplies far less iron to surrounding waters than once thought.
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NewsThe mystery of the missing deep ocean carbon fixers
New findings challenge the current view of how carbon dioxide is “fixed” in the sunless ocean depths. The study presents results that help to reconcile discrepancies in accounting for nitrogen supply and dissolved inorganic carbon (DIC) fixation at depth.
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NewsAlgae and water fleas in lakes: Light color influences food webs
Phytoplankton are the basic food source for many aquatic organisms. A new study shows that the light spectrum is more important for these microalgae and for lake ecosystems than previously assumed.
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NewsNew study reveals phytoplankton’s contribution to centuries-long ocean carbon storage
Phytoplankton have long been viewed as transient players in the global carbon cycle, but researchers have discovered that these tiny organisms can directly pump “stubborn” carbon into the ocean, where it may persist for centuries.
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NewsRNA viruses may differentially shape carbon recycling in the ocean
A new study has uncovered that certain ocean viruses—specifically RNA viruses—may disrupt how carbon and nutrients are recycled in the ocean, potentially altering the global carbon cycle.
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NewsIlluminated sugars show how microbes eat the ocean’s carbon
A team of scientists have designed a molecular probe that lights up when a sugar is consumed. They described how the probe helps to study the microscopic tug-of-war between algae and microbial degraders in the ocean.
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NewsScientists receive $1M grant to study gulf’s mesophotic coral habitats
Florida Atlantic University’s Harbor Branch Oceanographic Institute has received a $999,664 grant from FLRACEP for a three-year project titled, “Influences of Upwelling and Riverine Nutrient Plumes on the Mesophotic Coral Ecosystems of the West Florida Shelf.”
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NewsNorthward jet stream shift hits phytoplankton in the Mediterranean Sea
In just over 20 years, the northward shift of the subtropical jet stream — a high-altitude airflow — caused by climate change has reduced primary production in the northwestern Mediterranean by about 40%, affecting the base of the marine food web.
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NewsClimate affects microbial life around Antarctica
Bacteria and other microbes in the seas around Antarctica are strongly influenced by water temperature and the amount of sea ice. This is shown by coordinated measurements taken off the coast of the west Antarctic Peninsula, scientists say.
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NewsGreat whale pee funnel carries nutrients thousands of miles, boosting phytoplanktons
A new study shows that whales carry huge quantities of nutrients horizontally, across whole ocean basins, from rich, cold waters where they feed to warm shores near the equator where they mate and give birth.