Showing 20 articles starting at article 721

< Previous 20 articles        Next 20 articles >

Categories: Ecology: Sea Life, Geoscience: Geology

Return to the site home page

Biology: Marine Biology: Microbiology Biology: Zoology Ecology: Animals Ecology: Sea Life
Published

Bird flu associated with hundreds of seal deaths in New England in 2022      (via sciencedaily.com) 

Researchers have found that an outbreak of highly pathogenic avian influenza (HPAI) was associated with the deaths of more than 330 New England harbor and gray seals along the North Atlantic coast in June and July 2022, and the outbreak was connected to a wave of avian influenza in birds in the region.

Biology: Marine Ecology: Animals Ecology: Nature Ecology: Sea Life Environmental: Ecosystems Environmental: Water Geoscience: Geography Geoscience: Oceanography
Published

Minke whales are as small as a lunge-feeding baleen whale can be      (via sciencedaily.com) 

A new study of Antarctic minke whales reveals a minimum size limit for whales employing the highly efficient 'lunge-feeding' strategy that enabled the blue whale to become the largest animal on Earth.

Biology: Zoology Ecology: Nature Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geology
Published

Changing landscapes alter disease-scapes      (via sciencedaily.com) 

A new study has?highlighted?how and when?changes to the environment result in?animal-borne disease?thresholds?being breeched, allowing for?a?better understanding and?increased?capacity to?predict?the?risk of?transmissions.

Biology: Marine Chemistry: General Ecology: Nature Ecology: Sea Life Environmental: Biodiversity Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography
Published

Assessing the potential risks of ocean-based climate intervention technologies on deep-sea ecosystems      (via sciencedaily.com) 

An international team of experts convened remotely as part of the Deep Ocean Stewardship Initiative's Climate Working Group to consider the deep-sea impacts of ocean-based climate intervention (OBCI). A research team has analyzed the proposed approaches to assess their potential impacts on deep-sea ecosystems and biodiversity. Their findings raise substantial concern on the potential impacts of these technologies on deep-sea ecosystems and call for the need for an integrated research effort to carefully assess the cost and benefits of each intervention.

Biology: Marine Biology: Zoology Ecology: General Ecology: Nature Ecology: Research Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues
Published

Sea temperatures control the distributions of European marine fish      (via sciencedaily.com) 

An analysis extending from southern Portugal to northern Norway highlights the importance of temperature in determining where fish species are found.

Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Geology Geoscience: Severe Weather
Published

The world's atmospheric rivers now have an intensity ranking like hurricanes      (via sciencedaily.com) 

Atmospheric rivers, which are long, narrow bands of water vapor, are becoming more intense and frequent with climate change. A new study demonstrates that a recently developed scale for atmospheric river intensity (akin to the hurricane scale) can be used to rank atmospheric rivers and identify hotspots of the most intense atmospheric rivers not only along the U.S. West Coast but also worldwide.

Environmental: Ecosystems Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Geology Geoscience: Oceanography
Published

Life in the smoke of underwater volcanoes      (via sciencedaily.com) 

Disconnected from the energy of the sun, the permanently ice-covered Arctic deep sea receives miniscule amounts of organic matter that sustains life. Bacteria which can harvest the energy released from submarine hydrothermal sources could thus have an advantage. Scientists found bacteria uniquely adapted to this geo-energy floating in deep-sea waters. They describe the role of these bacteria for biogeochemical cycling in the ocean.

Environmental: Water Geoscience: Geology Offbeat: Earth and Climate
Published

A pool at Yellowstone is a thumping thermometer      (via sciencedaily.com) 

Doublet Pool's regular thumping is more than just an interesting tourist attraction. A new study shows that the interval between episodes of thumping reflects the amount of energy heating the pool at the bottom, as well as in indication of how much heat is being lost through the surface. Doublet Pool, the authors found, is Yellowstone's thumping thermometer.

Biology: Marine Ecology: Sea Life Environmental: Water Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
Published

Unprecedented increase in ocean plastic since 2005 revealed by four decades of global analysis      (via sciencedaily.com) 

A global dataset of ocean plastic pollution between 1979 and 2019 reveals a rapid and unprecedented increase in ocean plastics since 2005, according to a new study.

Biology: Marine Ecology: Extinction Ecology: Nature Ecology: Sea Life Paleontology: Climate
Published

Major North American oil source yields clues to one of earth's deadliest mass extinctions      (via sciencedaily.com) 

Geologists studying the Bakken Shale Formation discovered a critical kill mechanism behind a series of extinctions some 350 million years ago.

Biology: Marine Ecology: Sea Life Geoscience: Earth Science Paleontology: Fossils Paleontology: General
Published

Paleontologists flip the script on anemone fossils      (via sciencedaily.com) 

Billions of sea anemones adorn the bottom of the Earth's oceans -- yet they are among the rarest of fossils because their squishy bodies lack easily fossilized hard parts. Now a team of paleontologists has discovered that countless sea anemone fossils have been hiding in plain sight for nearly 50 years. It turns out that fossils long-interpreted as jellyfish were anemones. To do so, a team of scientists has simply turned the ancient animals upside down.

Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geology
Published

Gas monitoring at volcanic fields outside Naples, Italy, exposes multiple sources of carbon dioxide emissions      (via sciencedaily.com) 

The Phlegraean volcanic fields just west of Naples, Italy, are among the top eight emitters of volcanic carbon dioxide in the world. Since 2005, the Solfatara crater -- one of many circular depressions in the landscape left by a long history of eruptions --has been emitting increased volumes of gas. Today it emits 4,000-5,000 tons of carbon dioxide each day, equivalent to the emissions from burning ~500,000 gallons of gasoline. Researchers estimate that as much as 20%--40% of the current carbon dioxide emissions are from the dissolution of calcite in the rocks, while 60%--80% is from underground magma.

Biology: Marine Ecology: Animals Ecology: Sea Life
Published

Does current shellfish anti-predator gear curb 'crunching' rays?      (via sciencedaily.com) 

It's not just humans who enjoy eating shellfish, so do marine rays. They like to 'crunch' on clams, which can sometimes take a big bite out of clammers' profits. Using aerial and underwater videos, researchers assessed the ability of the whitespotted eagle ray to interact with clams housed within a variety anti-predator materials. Whitespotted eagle rays have strong jaws, plate-like teeth and nimble pectoral fins, which make them formidable and highly maneuverable predators of clams.

Biology: Botany Biology: Marine Biology: Microbiology Ecology: Sea Life Environmental: Water Geoscience: Earth Science Geoscience: Geology
Published

Mineral particles and their role in oxygenating the Earth's atmosphere      (via sciencedaily.com) 

Mineral particles played a key role in raising oxygen levels in the Earth's atmosphere billions of years ago, with major implications for the way intelligent life later evolved, according to new research.

Environmental: Water Geoscience: Earth Science Geoscience: Geology Geoscience: Landslides
Published

Mississippi River Delta study reveals which human actions contribute to land loss      (via sciencedaily.com) 

Scientists reveal new information about the role humans have played in large-scale land loss in the Mississippi River Delta -- crucial information in determining solutions to the crisis.

Biology: Marine Biology: Zoology Ecology: Animals Ecology: Sea Life Geoscience: Environmental Issues
Published

Toothed whales catch food in the deep using vocal fry      (via sciencedaily.com) 

Toothed whales, such as dolphins, killer whales and sperm whales communicate and catch food exclusively with sound. Now researchers have for the first time found they evolved a new sound source in their nose that is functionally the same as the human larynx.

Geoscience: Geology Geoscience: Oceanography Paleontology: Climate
Published

Most detailed geological model reveals Earth's past 100 million years      (via sciencedaily.com) 

Previous models of Earth's recent (100 million years) geomorphology have been patchy at best. For the first time a detailed continuous model of the Earth's landscape evolution is presented, with potential for understanding long-term climate and biological development.

Engineering: Robotics Research Geoscience: Environmental Issues Geoscience: Geology Geoscience: Oceanography
Published

Robot provides unprecedented views below Antarctic ice shelf      (via sciencedaily.com) 

With the help of an underwater robot, known as Icefin, a U.S.- New Zealand research team has obtained an unprecedented look inside a crevasse at Kamb Ice Stream -- revealing more than a century of geological processes beneath the Antarctic ice.