Australian research voyage to investigate how life in the Southern Ocean captures and stores carbon from the atmosphere — ScienceDaily

A fleet of new-generation, deep-diving ocean robots will be deployed in the Southern Ocean, in a major study of how marine life acts as a handbrake on global warming.

The automated probes will be looking for ‘marine snow’, which is the name given to the shower of dead algae and carbon-rich organic particles that sinks from upper waters to the deep ocean.

Sailing from Hobart on Friday, twenty researchers aboard CSIRO’s RV Investigator hope to capture the most detailed picture yet of how marine life in the Southern Ocean captures and stores carbon from the atmosphere.

Voyage Chief Scientist, Professor Philip Boyd, from AAPP and IMAS, said it would be the first voyage of its kind to combine ship-board observations, deep-diving robots, automated ocean gliders and satellite measurements.

“The microscopic algae in the ocean are responsible for removing carbon dioxide from the atmosphere as much as the forests on land

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Researchers discover life in deep ocean sediments at or above water’s boiling point — ScienceDaily

An international research team that included three scientists from the University of Rhode Island’s Graduate School of Oceanography has discovered single-celled microorganisms in a location where they didn’t expect to find them.

“Water boils on the (Earth’s) surface at 100 degrees Celsius, and we found organisms living in sediments at 120 degrees Celsius,” said URI Professor of Oceanography Arthur Spivack, who led the geochemistry efforts of the 2016 expedition organized by the Japan Agency for Marine-Earth Science and Technology and Germany’s MARUM-Center for Marine and Environmental Sciences at the University of Bremen. The study was carried out as part of the work of Expedition 370 of the International Ocean Discovery Program.

The research results from a two-month-long expedition in 2016 will be published today in the journal Science.

The news follows an announcement in October that microbial diversity below the seafloor is as rich as on Earth’s surface. Researchers

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Auditors slam EU for ‘marine protected areas’ that fail to protect ocean

Europe’s marine protected areas (MPAs), set up to prevent biodiversity loss at sea, are failing to protect the oceans according to an excoriating report from auditors.



a green underwater: Photograph: BIOSPHOTO/Alamy


© Provided by The Guardian
Photograph: BIOSPHOTO/Alamy

Examining actions to protect marine life over the past decade, the European court of auditors raised a “red flag” warning the EU had failed to halt marine biodiversity loss in Europe’s waters and restore fishing to sustainable levels.

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Its report concluded there had been “no meaningful signs of progress” in the Mediterranean, the most overfished sea in the world, where the report said fishing is now at twice the sustainable level.

The news follows Guardian Seascape revelations on the so-called “paper parks” that marine conservationists say allow bottom trawling and other activities harmful to vulnerable marine habitats.

The report’s findings echoed a recent assessment by the European Environment Agency (EEA), which found fewer than 1%

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New gelatinous ‘blob’ species discovered in the depths of the ocean

Scientists have discovered a new blob-like species of ctenophore, or comb jelly, off Puerto Rico.

The creature, named Duobrachium sparksae, was first spotted during a 2015 dive led by the NOAA Office of Ocean Exploration and Research.

An undersea drone captured high-definition video of the comb jelly during the dive. “NOAA Fisheries scientists Mike Ford and Allen Collins, working shoreside, spotted it and recognized it as novel,” said NOAA, in a statement. “This marks the first time NOAA scientists exclusively used high-definition video to describe and annotate a new creature.”

The discovery, which follows years of analysis, is described in the journal Plankton and Benthos Research.

STUNNING VOLCANIC ‘LOST WORLD’ DISCOVERED DEEP IN THE OCEAN

However, no physical samples of the comb jellyfish have been taken. “It’s unique because we were able to describe a new species based entirely on high-definition video,” said Collins, in the statement. “The cameras on

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Renewable ocean resource technology focus of new book

ocean thermal energy conversion book cover over photo of ocean

A new University of Hawaiʻi at Mānoa book addresses worldwide achievements and developments in ocean thermal energy. Edited by civil and environmental engineering Professor Albert Kim, Ocean Thermal Energy Conversion (OTEC): Past, Present, and Progress dares the reader to consider how the world can advance the utilization of ocean resources given that the 21st century has been characterized as an era of natural resource depletion.

“As renewable energy production becomes more and more important, I believe that OTEC should be re-evaluated for us to decide to keep going or stop,” Kim said. “Things that inspired me are a community responsibility and the future generation. If we don’t do anything now, Hawaiʻi might not be paradise anymore several decades later.”

More about OTEC

OTEC is a process to produce energy using the temperature differences between warmer ocean surface waters and colder deep ocean waters (at least 500–1,500 meters

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4ocean’s multipronged approach to cleaning up ocean plastic is having an impact

For decades we’ve been recycling our bottles and cans, filling up the blue recycle bin while believing that we’re being good stewards of the environment. We had no idea where that stuff was going; we just wanted to believe that it was being taken care of and feel good about ourselves. 

Well, as it turns out, all that stuff was being put on pallets and shipped to China. I was shocked. How could it be sustainable to send our recycling thousands of miles across the Pacific Ocean? But that’s how it worked, until it didn’t.

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A plastic recycling site in China.


Getty Images

An answer from the ocean

In 2018, China stopped accepting plastic waste from multiple countries as part of its National Sword policy. This move left many recyclers and waste disposal companies scratching their heads to find new solutions. But innovators developing new ways to turn plastic pulled

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3 researchers in submersible park at bottom of Earth’s deepest ocean trench

China livestreamed footage of its new manned submersible parked at the bottom of the Mariana Trench on Friday, part of a historic mission into the deepest underwater valley on the planet. The “Fendouzhe”, or “Striver”, descended more than 33,000 feet into the submarine trench in the western Pacific Ocean with three researchers on board, state broadcaster CCTV said.

Only a handful of people have ever visited the bottom of the Mariana Trench, a crescent-shaped depression in the Earth’s crust that is deeper than Mount Everest is high and more than 1,600 miles long.

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China’s deep-sea manned submersible “Fendouzhe,” meaning “Striver” in Chinese,  carries out underwater assignments after plunging into the depths of the Mariana Trench on Friday.

Reuters via CCTV


Last year, American Victor Vescovo broke the record for deepest submarine dive when he traveled seven miles down to the Mariana Trench in the Pacific. During his four-hour excursion, Vescovo

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Ship Camera Captures Meteor Breaking Up Over Ocean [VIDEO]

KEY POINTS

  • A research vessel’s livestream camera captured the moment a meteor broke apart 
  • The ship’s voyage manager noted how fortunate it was that they documented the event
  • Such meteors tend to go unnoticed because they often happen in unpopulated places

An Australian science vessel was “in the right place at the right time” to film a meteor breaking apart over the ocean.

The RV Investigator research vessel of Australia’s national science agency, Commonwealth Scientific and Industrial Research Organisation (CSIRO), was off the coast of Tasmania on Wednesday when the bridge crew witnessed an “extremely bright meteor” crossing the sky then exploding over the ocean, the news release from CSIRO explained. According to the agency, the meteor was bright green in color and was fortunately caught on camera by the vessel’s 24/7 livestream camera.

“It’s cloudy with a chance of *checks notes* meteors?” CSIRO said on Twitter, where it shared

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Could kelp help relieve ocean acidification?

Could kelp help relieve ocean acidification?
Giant kelp (Macrocystis pyrifera) surface canopy in Monterey Bay, California. Credit: Christy Varga

Ethereal, swaying pillars of brown kelp along California’s coasts grow up through the water column, culminating in a dense surface canopy of thick fronds that provide homes and refuge for numerous marine creatures. There’s speculation that these giant algae may protect coastal ecosystems by helping alleviate acidification caused by too much atmospheric carbon being absorbed by the seas.


A new on-site, interdisciplinary analysis of giant kelp in Monterey Bay off the coast of California sought to further investigate kelp’s acidification mitigation potential. “We talk about kelp forests protecting the coastal environment from ocean acidification, but under what circumstances is that true and to what extent?” said study team member Heidi Hirsh, a Ph.D. student at Stanford’s School of Earth, Energy & Environmental Sciences (Stanford Earth). “These kinds of questions are important to investigate before trying to implement

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Fish carcasses deliver toxic mercury pollution to the deepest ocean trenches

Fish carcasses deliver toxic mercury pollution to the deepest ocean trenches
An illuminated snailfish collected from the Kermadec Trench in the southwest Pacific Ocean. Credit: Jeff Reid.

The sinking carcasses of fish from near-surface waters deliver toxic mercury pollution to the most remote and inaccessible parts of the world’s oceans, including the deepest spot of them all: the 36,000-foot-deep Mariana Trench in the northwest Pacific.


And most of that mercury began its long journey to the deep-sea trenches as atmospheric emissions from coal-fired power plants, mining operations, cement factories, incinerators and other human activities.

Those are two of the main conclusions of a University of Michigan-led research team that analyzed the isotopic composition of mercury in fish and crustaceans collected at the bottom of two deep-sea trenches in the Pacific. The team reports its findings in a study scheduled for publication Nov. 16 in Proceedings of the National Academy of Sciences.

“Mercury that we believe had once been in the

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