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.

 

Local drivers of amplified Arctic warming
An international team of researchers has unveiled local drivers of amplified arctic warming.
Publ.Date : Sat, 19 Jan 2019 09:57:07 EST

Penguins, starfish, whales: Which animals will win and lose in a warming Antarctic?
Using risk assessments, like those used for setting occupational safety limits in the workplace, researchers determined the winners and losers of climate change in the Antarctic. They show that marine animals associated with sea ice for food or breeding, such as some whales and penguins, are most at risk from the effects of climate change, while seafloor predators and open-water feeding animals like starfish and jellyfish will benefit from the opening up of new habitat.
Publ.Date : Thu, 17 Jan 2019 09:05:04 EST

Emperor penguins' first journey to sea
New research reveals the previously unknown behaviors of juvenile Emperor penguins in their critical early months when they leave their birth colony and first learn how to swim, dive, and find food.
Publ.Date : Thu, 17 Jan 2019 09:04:41 EST

Marine mammals and sea turtles recovering after Endangered Species Act protection
More than three-quarters of marine mammal and sea turtle populations have significantly increased after listing of the US Endangered Species Act (ESA), according to a new study.
Publ.Date : Wed, 16 Jan 2019 14:06:26 EST

Ocean giant gets a health check: Combination blood, tissue test reveals whale shark diets
Whale sharks, the world's largest fish, likely endure periods of starvation and may eat more plants than previously thought, according to the first results of a new health check. Ocean scientists now have a powerful, simple tool to discover the diets, migrations, and conservation needs of this endangered species.
Publ.Date : Wed, 16 Jan 2019 09:06:36 EST

Climate change during ancient Indus Civilization
New research on the '4.2 ka BP climatic event' provides rich insights into how rainfall in the northwest of South Asia changed over the critical period between 5400 and 3000 years ago.
Publ.Date : Tue, 15 Jan 2019 13:29:01 EST

Using satellites to measure rates of ice mass loss in glaciers
Researchers have investigated all glacial areas in South America in more detail than ever before, from the tropical areas to the subpolar regions. Their two major findings are that the highest rate of mass loss is in the Patagonian ice sheet, and that the glaciers in the tropics have lost considerably less mass than previously projected, although this is not the good news which it might appear at first sight.
Publ.Date : Tue, 15 Jan 2019 12:44:39 EST

Antarctica losing six times more ice mass annually now than 40 years ago
Antarctica experienced a sixfold increase in yearly ice mass loss between 1979 and 2017, according to a new study. Glaciologists additionally found that the accelerated melting caused global sea levels to rise more than half an inch during that time.
Publ.Date : Mon, 14 Jan 2019 16:11:50 EST

Antarctic ice sheet could suffer a one-two climate punch
Variations in the axial tilt of the Earth have significant implications for the rise and fall of the Antarctic Ice Sheet, the miles-deep blanket of ice that locks up huge volumes of water that, if melted, would dramatically elevate sea level and alter the world's coastlines. New research matches the geologic record of Antarctica's ice with the periodic astronomical motions of the Earth.
Publ.Date : Mon, 14 Jan 2019 11:42:37 EST

Upper-ocean warming is changing the global wave climate, making waves stronger
Sea level rise puts coastal areas at the forefront of the impacts of climate change, but new research shows they face other climate-related threats as well. Scientists found that the energy of ocean waves has been growing globally, and they found a direct association between ocean warming and the increase in wave energy.
Publ.Date : Mon, 14 Jan 2019 08:28:47 EST

Oceans are warming even faster than previously thought
Heat trapped by greenhouse gases is raising ocean temperatures faster than previously thought, concludes an analysis of four recent ocean heating observations. The results provide further evidence that earlier claims of a slowdown or 'hiatus' in global warming over the past 15 years were unfounded.
Publ.Date : Thu, 10 Jan 2019 14:18:11 EST

Fish farmers of the Caribbean
There are only so many fish in the sea. And our appetite for seafood has already stressed many wild fisheries to the breaking point. Meanwhile, the planet's growing population will only further increase the need for animal protein, one of the most resource-intensive types of food to produce.
Publ.Date : Thu, 10 Jan 2019 14:17:12 EST

Sunscreen and cosmetics compound may harm coral by altering fatty acids
Although sunscreen is critical for preventing sunburns and skin cancer, some of its ingredients are not so beneficial to ocean-dwelling creatures. In particular, sunscreen chemicals shed by swimmers are thought to contribute to coral reef decline. Now, researchers say that one such chemical, octocrylene (OC), which is also in some cosmetics and hair products, accumulates in coral as fatty acid esters that could be toxic to the marine organism.
Publ.Date : Wed, 09 Jan 2019 11:00:48 EST

Giant singers from neighboring oceans share song parts over time
Singing humpback whales from different ocean basins seem to be picking up musical ideas from afar, and incorporating these new phrases and themes into the latest song, according to a newly published study that's helping scientists better understand how whales learn and change their musical compositions.
Publ.Date : Tue, 08 Jan 2019 16:18:55 EST

Algae thrive under Greenland sea ice
Microscopic marine plants flourish beneath the ice that covers the Greenland Sea, according to a new study. These phytoplankton create the energy that fuels ocean ecosystems, and the study found that half of this energy is produced under the sea ice in late winter and early spring, and the other half at the edge of the ice in spring.
Publ.Date : Tue, 08 Jan 2019 12:54:11 EST

A century and half of reconstructed ocean warming offers clues for the future
Due to a scarcity of data, most global estimates of ocean warming start only in the 1950s. However, a team of scientists has now succeeded in reconstructing ocean temperature change from 1871 to 2017.
Publ.Date : Mon, 07 Jan 2019 15:07:46 EST

The long memory of the Pacific Ocean
Cold waters that sank in polar regions hundreds of years ago during the Little Ice Age are still impacting deep Pacific Ocean temperature trends. While the deep Pacific temperature trends are small, they represent a large amount of energy in the Earth system.
Publ.Date : Fri, 04 Jan 2019 12:14:26 EST

Microplastics and plastic additives discovered in ascidians all along Israel's coastline
A new study finds that microplastics -- tiny pieces of plastic ingested by aquatic life -- are present in solitary ascidians, sac-like marine invertebrate filter feeders, all along the Israeli coastline. The research also confirmed the presence of plastic additives, i.e. 'plasticizers,' in ascidians.
Publ.Date : Thu, 03 Jan 2019 11:06:30 EST

A 'pacemaker' for North African climate
Researchers have analyzed dust deposited off the coast of west Africa over the last 240,000 years, and found that the Sahara, and North Africa in general, has swung between wet and dry climates every 20,000 years.
Publ.Date : Wed, 02 Jan 2019 15:44:03 EST

Seagrass saves beaches and money
Seagrass beds are so effective in protecting tropical beaches from erosion, that they can reduce the need for regular, expensive beach nourishments that are used now. Biologists and engineers from the Netherlands and Mexico describe experiments and field observations around the Caribbean Sea.
Publ.Date : Wed, 02 Jan 2019 11:36:53 EST