Eclogitic diamonds formed in Earth's mantle originate from oceanic crust, rather than marine sediments as commonly thought, according to a new study from University of Alberta geologists.
Advanced molecular techniques have revealed the diversity of a little-understood group of ocean microbes called protists, according to a new publication in Scientific Reports. The project analyzed samples collected by the global Tara Oceans expedition, documenting genomes that will help researchers identify protists throughout the ocean.
Patches of coral reef are often surrounded by very large 'halos' of bare sand that are hundreds to thousands of square meters. Two recently published studies and a third feature story led by Elizabeth Madin, assistant research professor at the University of Hawai'i at Mānoa, shed light on these enigmatic features that are visible from space.
Global warming has caused twice as many ocean-dwelling species as land-dwelling species to disappear from their habitats, a unique Rutgers-led study found. The greater vulnerability of sea creatures may significantly impact human communities that rely on fish and shellfish for food and economic activity, according to the study published in the journal Nature.
The cells of most life forms contain mitochondria for energy production. They normally have their own genetic material, in addition to that found in the nucleus. Uwe John and colleagues at the Alfred Wegener Institute have now identified the first-ever exception to this rule in a single-celled parasite. The mitochondria of the dinoflagellate Amoebophrya ceratii appear to produce energy just like our own mitochondria, but without any genetic material, as the team reports in the journal Science Advances.
Densities of endangered green turtles are increasing in Pacific coral reefs, according to the first comprehensive in-water survey of turtle populations in the Pacific. The study, by Sarah Becker of the Monterey Bay Aquarium in California and colleagues, publishes April 24 in the open-access journal PLOS ONE.
Elevated concentrations of carbon dioxide in air flowing out to sea from Silicon Valley and the Salinas Valley could increase the amount of carbon dioxide dissolving in Monterey Bay waters by about 20 percent.
A new study conducted by scientists at the University of Hawai'i (UH) at Mānoa and the California Academy of Sciences revealed soft tissues that cover the rocky coral skeleton promote the recovery of corals following a bleaching event.
Experts say scientific understanding of deep hydrocarbons has been transformed, with new insights gained into the sources of energy that could have catalyzed and nurtured Earth's earliest forms of life. Abiotic hydrocarbons have been a major focus of the Deep Carbon Observatory program -- a 10-year exploration of Earth's innermost secrets, concluding in October.
2018 was the worst year for red tide in more than a decade. A new study reveals what made it so severe.