The new study reconstructs historical ocean subsurface temperature change with improved accuracy, revealing larger ocean energy accumulation and increased confidence in climate change assessments. This advances our understanding of global warming driven by the Earth's energy imbalance.
Researchers identified short DNA segments influencing tilapia's internal body chemistry in response to salinity stress, paving the way for targeted studies on gene regulatory networks. This discovery may help enhance stress tolerance in fish, critical for management practices preventing species extinction.
Scientists have identified a mechanism by which deep waters may rise to the surface through turbulence generated by underwater topographic features. This finding could help estimate how long the ocean stores carbon in its deepest regions before returning it to the surface.
Researchers report rapid expansion of ocean acidification in the western Arctic Ocean, with waters becoming more acidic and extending deeper. This phenomenon threatens marine life, including clams, mussels, and pteropods, which are crucial to the diet of salmon and herring.
A recent study found that massive warm-water eddies in the Caribbean Sea contribute to intense hurricanes like Matthew. The research team measured ocean temperature, salinity, and currents to better understand these oceanic features.
Researchers found that local atmospheric conditions and ocean circulation are the main drivers of ocean temperature changes in the critical depth range, leading to increased melting. The study used a five-year record to track the interactions between ocean and atmosphere, revealing an annual cycle in heat exchange that drives melting.
The study reveals that the ocean's oxygen content has decreased by more than 2% over the last 50 years due to global warming. This decrease can have far-reaching biological consequences for marine life, particularly large fish species.
Researchers confirm that the floating ice shelf is strongly coupled to the ocean below and Nares Strait, with temperatures changing with seasons and tides. Temperature data shows warming of ocean water at an average rate of 0.03 degrees Celsius per year, consistent with adjacent studies.
Ocean absorbing more carbon dioxide reduces atmospheric greenhouse gas levels, but promotes acidification in marine organisms. A study by UC Santa Barbara geographer Timothy DeVries and colleagues found that a slowdown of the ocean's overturning circulation is likely the cause.
Researchers have discovered that geostrophic balance becomes invalid at smaller scales, making sea level data unreliable for calculating ocean circulation. At high resolution, sea level can accurately calculate circulation in areas with persistent eddies, but not in areas dominated by internal waves.
A new study from the Woods Hole Oceanographic Institution reveals that Antarctic Bottom Water has freshened at an unexpected rate between 2007 and 2016, potentially altering ocean circulation and contributing to sea level rise. The researchers hypothesize that a recent landscape-changing event may be responsible for the shift.
A team of researchers at New Jersey Institute of Technology has developed spectral and co-spectral techniques to measure changes in subsurface water temperature and salinity. The methods, validated with a year's worth of data from two beaches in Alaska, can help coastal scientists anticipate changes in coastal ecosystems.
Researchers at Scripps Institution of Oceanography have developed underwater robots that mimic the movement of plankton to study ocean currents and marine life. The robotic plankton, also known as M-AUEs, were deployed in a swarm to capture a three-dimensional view of the interactions between ocean currents and marine life.
A Florida State University researcher investigated how carbon moves from the ocean surface to greater depths and remains there for hundreds of years. The study found that certain areas of the sea, particularly fronts where temperature or salinity changes, act as giant conduits moving carbon to deeper depths.
A new study led by Colorado State University suggests that a shift in the Southern Annular Mode, similar to El Nino, can lead to stronger ocean waves and the collapse of ice shelves. The research found that reduced sea ice cover allows ocean waves to directly impact ice shelves, enhancing surface melting and weakening ice shelves.
A recent study suggests that warmer oceans and increased rainfall will lead to more intense typhoons in the western Pacific. The research found that a lack of ocean water mixing, caused by freshwater from increased rainfall, can increase storm intensity.
A mesocosm experiment revealed that ocean acidification impairs the calcifying phytoplankton species Emiliania huxleyi's ability to form blooms, leading to reduced population size and flux of organic matter. This has strong impacts on the ecosystem, including reduced sinking of organic matter and altered climate feedbacks.
Scientists at NASA's Goddard Space Flight Center are developing a new method to track ocean heat using satellite magnetic field observations. The approach relies on the electrical conductivity of seawater and its temperature fluctuations, which can be detected from subtle changes in Earth's magnetic field lines.
Researchers have developed a new method to track ocean temperature changes using internal tidal waves, which can be detected through satellite data. This approach is cheaper and more reliable than existing methods, allowing for long-term monitoring of ocean warming without harming marine mammals.
A subsurface ocean of water ice may lie beneath Pluto's heart-shaped region, aligning almost exactly opposite its moon Charon. The existence of this ocean solves a longstanding puzzle and provides an explanation for the planet's gravitational tug-of-war with its moon.
A new study by University of Miami researchers found that the Agulhas Current, a major Indian Ocean current, has broadened since the early 1990s due to increased turbulence from intensifying winds. This widening of the current has significant implications for global climate change and ocean heat transport.
A new study by the University of Texas at Austin reveals that seabed microbes in the Arctic Ocean remove substantial quantities of nitrogen, accounting for 5% of global ocean nitrogen removal. The finding highlights the critical role of the Arctic in maintaining a balanced global nitrogen budget.
Researchers at the University of Miami Rosenstiel School used data from international scientific cruises to map the distribution of dissolved organic carbon in the Atlantic Ocean. They found that one third of global ocean net production comes from this basin, with nutrient arrival predicting DOC production.
The University of New Hampshire will study ocean ecosystems using underwater acoustic technology in the mid- and south Atlantic Ocean. The research aims to understand patterns and trends in regional ocean soundscapes and processes, including climate change.
A University of Washington study links Atlantic Ocean slowdown to changes in the Southern Hemisphere, which affects eastern North America and Western Europe. The shift is not driven by Arctic sea ice melting but rather by winds in the Southern Ocean.
Researchers found that gannets use shallow and short dives with less swimming when at ocean fronts, indicating abundant food closer to the surface. This study highlights the importance of these habitats for marine ecosystem functioning and could inform conservation efforts.
The ocean sunfish's unusually fast growth rate and large size may be attributed to altered genes that control growth hormone signalling. The fish's skeleton is largely made of cartilage, a trait that could provide insights into its development.
The report highlights detectable scientific evidence of ocean warming's impact on marine life, from microorganisms to mammals. Ocean warming is causing increased disease in plant and animal populations, impacting human health as pathogens spread more easily in warmer waters.
A recent study reveals that the expansion of Antarctic sea ice has caused a significant freshening of the Southern Ocean. The increased freshwater flux from the sea-ice conveyor belt explains the observed salinity changes in the region.
Researchers discovered that mussels improve water storage around grass roots and reduce soil salinity, allowing marshes to recover from drought in less than a decade. This mutually beneficial relationship between mussels and marsh grass can help ecosystems bounce back from extreme climatic events.
A new study reveals that beach salinity is increasing due to evaporation, affecting invertebrates such as mussels and crabs. The findings suggest that temperature rise and relative humidity are the primary drivers of this change, with implications for animal migration and survival.
A laboratory study reveals that rising water temperatures have a more significant impact on copepods than ocean acidification, affecting their body size and fatty acid content. The study suggests that food webs will deteriorate due to decreased food quality.
Researchers found that short-lived physical barriers in the ocean caused by temperature or salinity changes influence phytoplankton communities. This provides insight into maintaining high biodiversity of phytoplankton and its impact on the food web.
A University of Washington team has sequenced the genome of a key ocean microbe, revealing its surprising role in removing life-supporting nitrogen from the water. The findings provide new insights into how these microbes interact and carry out fundamental processes in the ocean, particularly in deep, low-oxygen waters.
The ocean's slow circulation rate allowed it to store more carbon for longer periods than previously thought. This process released carbon into the deep ocean, where it was trapped due to slow circulation and eventually dissolved, storing large amounts of CO2 for thousands of years.
Scientists have calculated the fate of Greenland's melting freshwater, finding that more than half of it is transported southward by the Labrador Current. The study suggests that the melting-induced impact on ocean salinity is smaller than expected and may lead to a weakening of the Gulf Stream system.
The KORUS-OC expedition will study the daily changes of the seas surrounding South Korea, focusing on phytoplankton and their role in Earth's carbon cycle. The research aims to better understand how oxygen and carbon flow between the ocean and atmosphere.
Scientists at Woods Hole Oceanographic Institution found a clear link between higher sea surface salinity levels and increased rainfall on land in the African Sahel. By analyzing global salinity and rainfall data, they discovered that high springtime salinity levels correlate significantly with increased monsoon-season rainfall in the ...
Current measurement methods may underestimate the amount of plastic in oceans due to turbulent mixing. Researchers found that surface heating and ocean currents mix plastics deeper into the water column.
New research from UEA's Centre for Ocean and Atmospheric Sciences found that oceans on distant Earth-like planets with varying salinity levels can significantly impact their climates. The study discovered that extreme salinity levels could lead to dramatic warming in polar regions, potentially extending a planet's habitability.
A 20-member scientific panel warns that increases in global carbon dioxide emissions are acidifying waters of the North American West Coast at an accelerating rate, with severe ecological consequences anticipated. The panel recommends a coordinated regional management strategy to mitigate the impacts of ocean acidification.
Researchers map phytoplankton blooms using NASA satellite data, revealing El Nino's effect on the marine food web. Phytoplankton populations drop during El Nino events due to disrupted upwelling, impacting fisheries and fish populations.
Researchers used foraminifera, tiny ocean dwellers, to reconstruct past oxygen levels and determine how much carbon dioxide was stored in the oceans during ice ages. The study provides insight into natural climate cycles and may help predict future environmental changes.
The article discusses a scientific plan developed by UCSB researchers to quantify present conditions in the ocean's carbon cycle and predict its future states. The plan, known as EXPORTS, combines modeling, satellite data, and field sampling to understand how carbon is processed by the world's oceans.
Researchers studied Agave species' response to saline soils and found two species, A. parryi and A. weberi, to be relatively tolerant to high levels of salinity. These findings suggest that cultivating these species in semiarid regions could increase production and address dwindling water reserves.
A study found that ocean acidification worsens during nighttime hours in tide pools along California's rocky coast. The increasing acidity harms calcifying organisms like mussels and oysters by dissolving their calcium carbonate shells and skeletons.
Researchers discover that warm ocean water is carving channels under Antarctica's ice shelves, weakening their stability. This process can lead to the disintegration of ice shelves, allowing more rapid ice flow into the ocean and increased rates of sea level rise.
Researchers at Woods Hole Oceanographic Institution discover that phytoplankton, microscopic plant-like organisms, produce massive amounts of methanol in the ocean, rivaling or exceeding land-based production. This finding challenges previous thinking on oceanic methanol sources and has implications for biofuel applications.
A study by Chenping Xu and Beiquan Mou found that spinach can be improved in nutritional value through cultural practices that impose either low fertilizer levels or slight salt stress. This approach resulted in only moderately or slightly reduced yield, while also increasing antioxidant capacity.
A special issue on ocean acidification is published by ICES Journal of Marine Science, exploring various effects and interactions with other environmental drivers. The issue features studies with both negative and no significant effects, promoting a broader understanding of the complex mechanisms involved.
Researchers discovered intense deep-ocean turbulence in the equatorial Pacific that plays a crucial role in driving global ocean circulation. The study, published online in Geophysical Research Letters, suggests that this mixing can be simulated using computer models to improve future climate forecasts.
A study has uncovered a complex planktonic network influencing the ocean's biological carbon pump, which removes carbon from the atmosphere. The research found that certain bacterial and viral genes predict variations in carbon export, enabling better predictions of climate change effects.
A recent study reveals that ocean plankton networks play a crucial role in removing carbon from the atmosphere and depositing it deep in the ocean. The research, led by Matthew Sullivan of Ohio State University, used advanced genetic sequencing to identify clusters of organisms most linked to carbon deposition.
The study found that sediments from the deep Southern Ocean carried smaller amounts of oxygen, indicating phytoplankton took up large amounts of carbon dioxide. This led to a buildup of decaying organic matter that stored extra carbon in the deep sea.
The Mid-Atlantic Regional Council on the Ocean has released a set of analytical data products that will improve the scientific basis for regional ocean decision-making. The data, which include information on marine animal distribution, human use patterns, and ocean features, will help stakeholders make informed management decisions.
Scientists have found that global ocean warming has doubled in recent decades, with significant increases in upper ocean temperatures since the 1970s. The study indicates that half of the accumulated heat during the industrial era has occurred in recent decades, with about a third residing in the deeper oceans.
A new study by NOAA researchers predicts that ocean temperatures in the Northeast U.S. may warm twice as fast and three times faster than previously estimated. This accelerated warming is driven by a higher resolution climate model that better reflects regional ocean circulation patterns.
A recent West Coast study emphasizes the impacts of ocean acidification and low-oxygen conditions on marine organisms, highlighting serious challenges for life in these areas. The results show that multiple stressors will only increase as ocean conditions worldwide resemble those off the West Coast.
A new study reveals that giant icebergs in the Southern Ocean contribute significantly to carbon sequestration, with enhanced phytoplankton productivity extending hundreds of kilometers beyond the iceberg's length. This process helps slow global warming by storing atmospheric carbon dioxide.
The ORCAS field campaign aims to understand the role of the Southern Ocean in absorbing excess carbon dioxide emitted into the atmosphere. By tracking oxygen and carbon dioxide levels, scientists will gain insights into the ocean's ability to act as a carbon sink.