Oceanography News

Courtesy of Science Daily

Welcome to Sea and Sky's Oceanography News. Here you can find links to the latest ocean news headlines in the topic of oceanography. Click on any yellow title below to view the full news article. The news article will open in a new browser window. Simply close the browser window when you are finished reading the article to return to the news article listing. You can use the "Click for More" link to go to a page with more news headlines.

 

Invisible helpers of the sea: Marine bacteria boost growth of tiny ocean algae
A common diatom grows faster in the presence of bacteria that release a growth hormone known to benefit plants on land. The authors of a new report showed that these bacteria exchange material with the diatoms while in turn producing auxin, a well-known hormone made by microbes living around the roots of land plants.
Publ.Date : Wed, 27 May 2015 13:40:38 EDT

Global climate on verge of multi-decadal change
The global climate is on the verge of broad-scale change that could last for a number of decades a new study implies. The change to the new set of climatic conditions is associated with a cooling of the Atlantic, and is likely to bring drier summers in Britain and Ireland, accelerated sea-level rise along the northeast coast of the United States, and drought in the developing countries of the Sahel region.
Publ.Date : Wed, 27 May 2015 13:39:32 EDT

Evolution of the Antarctic ice sheet
A new light has been shed on the stability of the Antarctic ice sheet. It shows for the first time that ice rises (pinning points that keep the floating parts of ice sheets in place) are formed during the transition between glacial and interglacial periods, which significantly slows down the response of the ice sheet to climate change.
Publ.Date : Tue, 26 May 2015 11:02:24 EDT

Potential of seagrass to combating climate change
Seagrass ecosystems could play a key role in combating climate change, researchers have discovered. The marine flowering plant also helps sustain abundant sea life and protects shorelines around the world from coastal erosion. Yet with seagrass habitats suffering rapid global decline and despite the plant's huge potential; there are currently no functioning seagrass restoration or conservation projects. Due to their shallow coastal habitat the aquatic plant is particularly prone to human disturbance - globally 24 per cent of seagrass species are now classified as threatened or near threatened.
Publ.Date : Tue, 26 May 2015 08:53:51 EDT

Climate engineering may save coral reefs, study shows
Mass coral bleaching, which can lead to coral mortality, is predicted to occur far more frequently over the coming decades, due to the stress exerted by higher seawater temperatures. Geoengineering of the climate may be the only way to save coral reefs from mass bleaching, according to new research.
Publ.Date : Mon, 25 May 2015 12:04:30 EDT

Estuaries protect Dungeness crabs from deadly parasites
Parasitic worms can pose a serious threat to the Dungeness crab, a commercially important fishery species found along the west coast of North America. The worms are thought to have caused or contributed to the crash of the crab fishery of central California during the last half century. New research shows that infected crabs can rid themselves of parasites by moving into the less salty water of estuaries. Low salinity kills the worms creating a parasite refuge for the crabs.
Publ.Date : Fri, 22 May 2015 10:53:25 EDT

3D geological tour of the Guadalquivir basin using Google Earth
A research team has developed a tool that allows a 3D journey in ten sites of geological and palaeontological interest in the Guadalquivir basin (Huelva, Spain). In the virtual tour, developed with Google Earth, you can visit and explore treasures of this area, such as records of the opening of the Atlantic Ocean, using tablets and smartphones.
Publ.Date : Fri, 22 May 2015 08:34:12 EDT

Tara Oceans expedition yields treasure trove of plankton data
A multinational team of researchers who spent three and a half years sampling the ocean's sunlit upper layers aboard the schooner Tara unveil the first officially reported global analyses of the Tara Oceans consortium.
Publ.Date : Thu, 21 May 2015 14:39:34 EDT

New insights into global ocean microbe-virus interactions, drivers of Earth's ecosystems
Ocean microbes are vital to the Earth's ecosystems, and their interactions with ocean viruses can have dramatic effects on processes ranging from oxygen production to food supply. Marine biologists have now uncovered new information about the way marine viruses and microbes interact on a global scale, which may allow researchers to predictively model their complex interactions.
Publ.Date : Thu, 21 May 2015 14:39:30 EDT

Sudden onset of ice loss in Antarctica so large it affects Earth's gravity field
Scientists have observed a sudden increase of ice loss in a previously stable region of Antarctica. The ice loss in the region is so large that it causes small changes in the gravity field of the Earth.
Publ.Date : Thu, 21 May 2015 14:39:26 EDT

Rapid action necessary to protect Malaysia's sea cows and their habitat
Malaysia aims to protect 10% of its marine environment by 2020. Less than 1%, however, is currently protected. This may have dire consequences for the country's endangered dugong population, warn a team of Malaysian scientists.
Publ.Date : Thu, 21 May 2015 09:16:35 EDT

Surviving harsh environments becomes a death-trap for specialist corals
The success of corals that adapt to survive in the world's hottest sea could contribute to their demise through global warming, according to new research.
Publ.Date : Wed, 20 May 2015 19:35:19 EDT

Deepwater Horizon oil spill contributed to high number of Gulf dolphin deaths
As part of an unusual mortality event investigation, a team of scientists has discovered that dead bottlenose dolphins stranded in the northern Gulf of Mexico since the start of the Deepwater Horizon oil spill have lung and adrenal lesions consistent with petroleum product exposure.
Publ.Date : Wed, 20 May 2015 15:16:22 EDT

Study reveals how eastern US forests came to be
Spring visitors to Great Smoky Mountains or the Blue Ridge Parkway will see ridges and valleys covered in flowering mountain laurels, rhododendrons, tulip poplars, dogwoods, black locusts and silverbell trees. A new study of nearly all the trees and shrubs in the southern Appalachians suggests that roughly half of the species can trace their relatives to thousands of miles away in Asia. Most of the rest likely arose within North America, the researchers say.
Publ.Date : Wed, 20 May 2015 13:46:35 EDT

Climate change altering frequency, intensity of hurricanes
Climate change may be the driving force behind fewer, yet more powerful hurricanes and tropical storms, says a geography professor.
Publ.Date : Mon, 18 May 2015 12:13:58 EDT

Beached iceberg helps reveal ecological impact of sea-ice changes
The grounding of a giant iceberg in Antarctica has provided a unique real-life experiment that has revealed the vulnerability of marine ecosystems to sudden changes in sea-ice cover. Scientists have found that within just three years of the iceberg becoming stuck in Commonwealth Bay -- an event which dramatically increased sea-ice cover in the bay -- almost all of the seaweed on the sea floor had decomposed, or become discolored or bleached due to lack of light.
Publ.Date : Mon, 18 May 2015 10:21:34 EDT

Oceans and atmosphere: Microscopic-scale predator-prey relationship has global climate implications
A factor that determines the properties of clouds that help moderate the planet's temperature may be decided in the oceans. The oceans are home to phytoplankton, which when they decay, produce molecules that become airborne -- if bacteria don't eat the molecules first.
Publ.Date : Mon, 18 May 2015 09:23:27 EDT

Nanomaterials in sunscreens and boats leave marine life vulnerable
Nanomaterials commonly used in sunscreens and boat-bottom paints are making sea urchin embryos more vulnerable to toxins, according to a new study. The authors said this could pose a risk to coastal, marine and freshwater environments.
Publ.Date : Mon, 18 May 2015 08:43:51 EDT

Eenvironmental risk assessment of sub-seabed carbon dioxide storage
A research project of carbon dioxide in the offshore sea bed is often discussed as a means to reduce further the increase of carbon dioxide to the atmosphere. The project has developed recommendations for the selection and monitoring of submarine storage sites as well as an approach to a sound environmental risk assessment. 27 partner institutions from nine European countries cooperated in the project. The outcome helps to adjust regulations, and to operate sub-seabed carbon dioxide storage sites more safely.
Publ.Date : Fri, 15 May 2015 08:33:58 EDT

Ocean's hidden fertilizer revealed
Phosphorus is one of the most common substances on Earth. An essential nutrient for every living organism -- humans require approximately 700 milligrams per day -- we are rarely concerned about consuming enough of it because it is present in most of the foods we eat. Despite its ubiquity and living organisms' utter dependence on it, we know surprisingly little about how it moves, or cycles, through the ocean environment.
Publ.Date : Thu, 14 May 2015 14:29:55 EDT