Impact of rising sea temperatures on marine life — ScienceDaily

Global warming or climate change. It doesn’t matter what you call it. What matters is that right now it is having a direct and dramatic effect on marine environments across our planet. “More immediately pressing than future climate change is the increasing frequency and severity of extreme ‘underwater heatwaves’ that we are already seeing around […]

Ocean toxin a heartbreaking threat for sea otters

A sea otter dines on a clam. Credit: Joe Tomoleoni Heart disease is a killer threat for southern sea otters feasting on domoic acid in their food web, according to a study led by the University of California, Davis. The study, published in the journal Harmful Algae, examined the relationship between long-term exposure to domoic […]

Mini sea monster had teeth as sharp as a saw blade

A sea monster with teeth so sharp they formed a “saw-like blade,” swam in the waters of what is now Morocco about 66 million years ago, a new study finds. Miners discovered the remains of this creature — a lizard-like marine reptile called a mosasaur that lived during the dinosaur age — at the Sidi […]

Tiny particles that seed clouds can form from trace gases over open sea — ScienceDaily

New results from an atmospheric study over the Eastern North Atlantic reveal that tiny aerosol particles that seed the formation of clouds can form out of next to nothingness over the open ocean. This “new particle formation” occurs when sunlight reacts with molecules of trace gases in the marine boundary layer, the atmosphere within about […]

Geoscientists reconstruct 6.5 million years of sea level stands

An aerial photograph of the carbonate coastal morphology in Mallorca. Credit: University of South Florida The pressing concern posed by rising sea levels has created a critical need for scientists to precisely predict how quickly the oceans will rise in coming centuries. To gain insight into future ice sheet stability and sea-level rise, new research […]

Tiny particles that seed clouds can form from trace gases over open sea

Results from a study of clouds and aerosols conducted in the Azores revealed that new particles can seed the formation of clouds in the marine boundary layer—the atmosphere up to about a kilometer above Earth’s surface—even over the open ocean, where the concentration of precursor gases was expected to be low. Image courtesy of the […]

The Influence of Tidal Forces Extends to the Arctic’s Deep Sea

From more than 384,000 kilometers away, the Moon’s gravity pulls at Earth and its oceans, even affecting activity hundreds of meters below the sea surface. Oceanographers know that tides can affect methane emissions that seep from the seafloor, and now a research team has shown this influence extends into the deep Arctic. Unexpected […]

Some bacteria are suffocating sea stars, turning the animals to goo

Dermasterias imbricata

The mysterious culprit behind a deadly sea star disease is not an infection, as scientists once thought. Instead, multiple types of bacteria living within millimeters of sea stars’ skin deplete oxygen from the water and effectively suffocate the animals, researchers report January 6 in Frontiers in Microbiology. Such microbes thrive when there are high levels […]

A sea of rubbish: ocean floor landfills

The Messina Strait, a submarine bridge separating the island of Sicily from the Italian Peninsula, is the area with the largest marine litter density worldwide -more than a million objects per square kilometre in some parts-, as reported in a new review paper published in the journal Environmental Research Letters. Also, over the next thirty […]

Seagrass meadows may facilitate marine plastic removal from the sea

Credit: Unsplash/CC0 Public Domain Underwater seagrass meadows may trap, extract and carry marine plastic debris to shore, thereby helping to remove plastic litter from the sea, according to a study published in Scientific Reports. Previous research suggested that most plastics end up in the seafloor and that some are washed back to shore; however, how […]