Oceanography

Oceanography News -- ScienceDaily Oceanography news. Learn about ocean currents, coastal erosion, sea level rising and other topics in physical oceanography.

  • Study validates East Antarctic ice sheet to remain stable even if western ice sheet melts
    on August 17, 2017 at 8:20 pm

    A new study validates that the central core of the East Antarctic ice sheet should remain stable even if the West Antarctic ice sheet melts. […]

  • New gene catalog of ocean microbiome reveals surprises
    on August 17, 2017 at 8:20 pm

    Oceanographers report completing the largest single-site microbiome gene catalog constructed to date. With this new information, the team discovered nutrient limitation is a central driver in the evolution of ocean microbe genomes. […]

  • Florida flood risk study identifies priorities for property buyouts
    on August 17, 2017 at 1:28 pm

    A study of flood damage in Florida proposes prioritizing property buyouts based on flood risk, ecological value, and socioeconomic conditions. Forecasters say an above-normal hurricane season is likely in the Atlantic Ocean this year, while a rising sea level is making Florida increasingly vulnerable to dangerous flooding. […]

  • Larvaceans provide a pathway for transporting microplastics into deep-sea food webs
    on August 16, 2017 at 6:51 pm

    A new article shows that filter-feeding animals called giant larvaceans can collect and consume microplastic particles, potentially carrying microplastics to the deep seafloor. […]

  • Radioactive 129I waste used to track ocean currents for 15,000 km after discharge from nuclear...
    on August 16, 2017 at 2:03 pm

    Radioactive 129I has traveled the equivalent of a third of the way round the globe, since being released from nuclear fuel reprocessing plants in the UK and France. The iodine's 15,000 km journey begins in the nuclear plants at Sellafield and La Hague and continues via the Arctic Ocean and then southward via the Grand Banks towards Bermuda, where it is found at very low concentrations about 20 years later. […]

  • Tiny fraction of oceans could meet world's fish demand
    on August 14, 2017 at 4:53 pm

    Covering 70 percent of Earth's surface, the world's oceans are vast and deep. So vast, in fact, that nearly every coastal country has the potential to meet its own domestic seafood needs through aquaculture. In fact, each country could do so using a tiny fraction of its ocean territory. […]

  • Marine noise pollution stresses and confuses fish
    on August 10, 2017 at 2:49 pm

    Increased noise pollution in the oceans is confusing fish and compromising their ability to recognise and avoid predators. […]

  • New technique offers clues to measure the deoxygenation of the ocean
    on August 9, 2017 at 6:20 pm

    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 'dead 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. […]

  • Cause of Atlantic coastline's sea level rise hot spots now revealed
    on August 9, 2017 at 6:01 pm

    Seas rose in the southeastern US between 2011 and 2015 by more than six times the global average sea level rise that is already happening due to human-induced global warming, new research shows. The combined effects of El Niño (ENSO) and the North Atlantic Oscillation (NAO), both of which are naturally occurring climate processes, drove this recent sea level rise hot spot, according to the study. […]

  • Not all glaciers in Antarctica have been affected by climate change
    on August 8, 2017 at 10:23 pm

    The effects of climate change, which are apparent in other parts of the Antarctic continent, are not yet observed for glaciers in the western Ross Sea coast, new research indicates. […]

  • No longer water under the bridge, statistics yields new data on sea levels
    on August 8, 2017 at 6:59 pm

    While the scientific community has long warned about rising sea levels and their destructive impact on some of the United States' most populous cities, researchers have developed a new, statistical method that more precisely calculates the rate of sea level rise, showing it's not only increasing, but accelerating. […]

  • Laser mapping project shows effects of physical changes in Antarctica's Dry Valleys
    on August 8, 2017 at 6:53 pm

    Researchers have publicly released high-resolution maps of Antarctica's McMurdo Dry Valleys, a globally unique polar desert. […]

  • Some land conservation measures unpopular among property owners
    on August 7, 2017 at 7:52 pm

    While popular with conservation groups, coastal easements that prevent development in order to protect marshland from changes brought about by climate change and rising sea levels are not favored by property owners. The findings, based on the results of surveys conducted in 2015 of 1,002 owners of Connecticut coastal properties, suggest that relying on education about sea level rise and the ecosystem benefits of marshes alone will not protect land from future changes. […]

  • Marine reserves a solution to bycatch problem in oceans
    on August 7, 2017 at 7:17 pm

    Commercial fishermen may be able to catch more of the profitable fish they want with marine reserves than without them, according to a study. […]

  • Complex causes of Maldives flooding
    on August 7, 2017 at 12:23 pm

    The causes of coastal flooding in the Maldives are more complex than previously thought, according to a new study. Researchers examined wave and sea level data around historic flood events and found that multiple factors contribute to flooding in the Indian Ocean island chain, which has an average land elevation of just one meter. […]

  • Current threats to our oceans revealed
    on August 3, 2017 at 1:59 pm

    A survey of tens of thousands of marine studies from the last decade reveals current threats to our marine environment. These include: the effects of climate change, marine plastic pollution, conservation, as well as social and economic impacts. It is hoped the method used to obtain this information, which has only just been made possible with advances in computational power, will enable the development of robust policies that ensure the future health of our seas. […]

  • Microscopic body snatchers infest our oceans
    on August 2, 2017 at 2:30 pm

    Predatory microbes which enslave prey to acquire photosynthetic capability are abundant in our oceans, according to new research. […]

  • Update on the Larsen-C iceberg breakaway
    on August 2, 2017 at 12:29 pm

    Since an iceberg four times the size of London broke free earlier this month, scientists have continued to track its progress using satellites. Their observations show the Larsen-C story might not be over yet. […]

  • High tsunami danger in Alaska, perhaps elsewhere
    on August 1, 2017 at 2:17 pm

    Scientists probing under the seafloor off Alaska have mapped a geologic structure that they say signals potential for a major tsunami in an area that normally would be considered benign. They say the feature closely resembles one that produced the 2011 Tohoku tsunami off Japan, killing some 20,000 people and melting down three nuclear reactors. Such structures may lurk unrecognized in other areas of the world, say the scientists. […]

  • Glaciers may have helped warm Earth
    on July 31, 2017 at 8:44 pm

    Weathering of Earth by glaciers may have warmed the planet over eons by aiding the release of carbon dioxide into the atmosphere. A new study shows the cumulative effect may have created negative feedback that prevented runaway glaciation. […]

  • Loss of Arctic sea ice impacting Atlantic Ocean water circulation system
    on July 31, 2017 at 3:46 pm

    Arctic sea ice is not merely a passive responder to the climate changes occurring around the world, according to new research. Scientists say the ongoing Arctic ice loss can play an active role in altering one of the planet's largest water circulation systems: the Atlantic Meridional Overturning Circulation (AMOC). […]

  • Project to save the Belize coast provides valuable framework
    on July 27, 2017 at 2:29 pm

    A coastal zone management plan designed to safeguard Belize's natural assets has produced a win-win opportunity for people and the environment, providing a valuable framework for other coastal nations around the world where overfishing, development, and habitat degradation are increasingly serious problems. […]

  • Coral gardening is benefiting Caribbean reefs, study finds
    on July 25, 2017 at 7:41 pm

    A new study found that Caribbean staghorn corals (Acropora cervicornis) are benefiting from 'coral gardening,' the process of restoring coral populations by planting laboratory-raised coral fragments on reefs. […]

  • Seawalls: Ecological effects of coastal armoring in soft sediment environments
    on July 24, 2017 at 5:31 pm

    For nearly a century, the O'Shaughnessy seawall has held back the sand and seas of San Francisco's Ocean Beach. At work even longer: the Galveston seawall, built after America's deadliest hurricane in 1900 killed thousands in Texas. […]

  • Summer sea ice melt in the Arctic
    on July 24, 2017 at 5:31 pm

    Earlier this year Arctic sea ice sank to a record low wintertime extent for the third straight year. Now NASA is flying a set of instruments north of Greenland to observe the impact of the melt season on the Arctic's oldest and thickest sea ice. […]

  • Challenging prevailing theory about how deep-sea vents are colonized
    on July 24, 2017 at 5:30 pm

    Despite being relatively close together, two recently discovered hydrothermal vent fields in the Gulf of California host very different animal communities. This finding contradicts a common scientific assumption that neighboring vents will share similar animal communities, and suggests that local geology and vent-fluid chemistry are important factors affecting vent communities. […]

  • Strength of tectonic plates may explain shape of the Tibetan Plateau
    on July 24, 2017 at 3:35 pm

    Geoscientists have long puzzled over the mechanism that created the Tibetan Plateau, but a new study finds that the landform's history may be controlled primarily by the strength of the tectonic plates whose collision prompted its uplift. Given that the region is one of the most seismically active areas in the world, understanding the plateau's geologic history could give scientists insight to modern day earthquake activity. […]

  • Ancient Italian fossils reveal risk of parasitic infections due to climate change
    on July 20, 2017 at 7:53 pm

    In 2014, a team of researchers found that clams from the Holocene Epoch (that began 11,700 years ago) contained clues about how sea level rise due to climate change could foreshadow a rise in parasitic trematodes. Now, an international team has found that rising seas could be detrimental to human health on a much shorter time scale. […]

  • Could sharks help save shipping industry billions?
    on July 20, 2017 at 3:36 pm

    Whales, sharks, butterflies and lotus leaves might together hold the secret to saving the shipping industry millions and help save the planet, according to a marine biologist. […]

  • Coral reefs in the Gulf of Aqaba may survive global warming, new study finds
    on July 20, 2017 at 2:06 pm

    Coral reefs in the Red Sea’s Gulf of Aqaba can resist rising water temperatures, suggests new research. If they survive local pollution, these corals may one day be used to re-seed parts of the world where reefs are dying. The scientists urge governments to protect the Gulf of Aqaba Reefs. […]