Steelhead trout, once thriving in Southern California, are declared endangered
Southern California's rivers and creeks once teemed with large, silvery fish that arrived from the ocean and swam upstream to spawn. But today, these fish are seldom seen......»»
From the coast to the deep sea, changing oxygen levels affect marine life in different ways
Earth's atmosphere maintains a constant level of oxygen, whether it is a wintry, rainy day or hot summer. Across the ocean, oxygen concentrations vary enormously between different places and over time. Sometimes oxygen levels change within the course.....»»
A new electrochemical approach could reduce ocean acidity and remove carbon in the process
In the effort to combat the catastrophic impacts of global warming, we must accelerate carbon emissions reduction efforts and rapidly scale strategies to remove carbon dioxide (CO2) from the atmosphere and the oceans. The technologies for reducing ou.....»»
Study finds climate change is helping tropical fish invade Australian ocean water
A University of Adelaide study of shallow-water fish communities on rocky reefs in south-eastern Australia has found climate change is helping tropical fish species invade temperate Australian waters. The work is published in the Journal of Animal Ec.....»»
Laser-treated cork absorbs oil for carbon-neutral ocean cleanup
Oil spills are deadly disasters for ocean ecosystems. They can have lasting impacts on fish and marine mammals for decades and wreak havoc on coastal forests, coral reefs, and the surrounding land. Chemical dispersants are often used to break down oi.....»»
Researchers help migrating salmon survive mortality hot-spot
When Kevin Ryan and the other hardworking volunteers at Mossom Creek Hatchery in Port Moody, B.C. release young coho smolts into the ocean, they're never quite certain how many will return as adults......»»
Marine microbial populations: Potential sensors of the global change in the ocean
Animal and plant populations have been extensively studied, which has helped to elucidate ecosystem processes and evolutionary adaptations. However, this has not been the case with microbial populations, due to the impossibility of isolating, culturi.....»»
Respiratory stress response that stunts temperate fish also affects coral reef fish
Coral reef fish, like the fish in other marine and freshwater ecosystems, are likely to reach smaller maximum sizes and start reproducing earlier with smaller and fewer eggs as climate change continues to warm up the ocean......»»
Ocean environment safety of nanocellulose investigated in study of mussels
Cellulose nanofibers represent a promising resource for multiple industrial sectors, but what is their impact on the marine environment? A study published in Environmental Science: Nano recently addressed this issue in a study on marine organisms con.....»»
NASA"s near space network enables PACE climate mission to "phone home"
The PACE (Plankton, Aerosol, Cloud, ocean Ecosystem) mission has delivered its first operational data back to researchers, a feat made possible in part by innovative, data-storing technology from NASA's Near Space Network, which introduced two key en.....»»
Plugging the leak on laundry pollution
Joaquim Goes, an ocean biochemist at Columbia Climate School's Lamont-Doherty Earth Observatory, had to look twice when he first saw the tiny strands of fiber floating in a water sample from the Hudson River. An expert in microplastics detection, he.....»»
Saturn"s ocean moon Enceladus could support life—researchers are working out how to detect extraterrestrial cells there
Saturn has 146 confirmed moons—more than any other planet in the solar system—but one called Enceladus stands out. It appears to have the ingredients for life......»»
Coral reef microbes point to new way to assess ecosystem health
A new study shows that ocean acidification is changing the mix of microbes in coral reef systems, which can be used to assess ecosystem health......»»
Huge database gives insight into salmon patterns at sea
A massive new analysis of high seas salmon surveys is enhancing the understanding of salmon ecology, adding details about where various species congregate in the North Pacific Ocean and their different temperature tolerances. The study is published i.....»»
Plastic pollution can kill variety of ocean embryos
High levels of plastic pollution can kill the embryos of a wide range of ocean animals, new research shows......»»
Researchers reveal oceanic black carbon sink effect driven by seawater microdroplets
Pyrogenic carbon is widely produced during the incomplete combustion of biomass and fossil fuels on land. About one-third of pyrogenic carbon is exported to the ocean by rivers, and thereinto, the refractory fraction becomes the source of oceanic bla.....»»
Orbital eccentricity may have led to young underground ocean on Saturn"s moon Mimas
Saturn's moon Mimas could have grown a huge underground ocean as its orbital eccentricity decreased to its present value and caused its icy shell to melt and thin......»»
The seabed needs to become a top priority, and the UN agrees
"The science we need for the ocean we want"—this is the tagline for the UN Ocean Decade (2021-2030), which has just held its first conference in Barcelona, Spain. Marine scientists from around the world, including me, gathered alongside global lead.....»»
Video: Is there a quick fix for ocean acidification?
Acidification is threatening the ocean's ability to pull carbon dioxide out of our atmosphere, so scientists and startups are looking to ocean-sized antacids to raise its pH......»»
Scientists say coral reefs around the world are experiencing mass bleaching in warming oceans
Coral reefs around the world are experiencing global bleaching for the fourth time, top reef scientists declared Monday, a result of warming ocean waters amid human-caused climate change......»»