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Categories: Ecology: Sea Life, Geoscience: Severe Weather

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Biology: Biochemistry Ecology: Trees Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Severe Weather Paleontology: Climate
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600 years of tree rings reveal climate risks in California      (via sciencedaily.com)     Original source 

The San Joaquin Valley in California has experienced vast variability in climate extremes, with droughts and floods that were more severe and lasted longer than what has been seen in the modern record, according to a new study of 600 years of tree rings from the valley.

Biology: Biochemistry Biology: General Biology: Marine Biology: Zoology Ecology: Extinction Ecology: Sea Life
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Vulnerability of England's only resident bottlenose dolphins      (via sciencedaily.com)     Original source 

New research has provided a detailed examination of England's bottlenose dolphin population's existence and the challenges it faces from human activities and environmental factors on a daily basis.

Environmental: General Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geology Geoscience: Geomagnetic Storms Geoscience: Severe Weather Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: The Solar System
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Solar activity likely to peak next year      (via sciencedaily.com)     Original source 

Researchers have discovered a new relationship between the Sun's magnetic field and its sunspot cycle, that can help predict when the peak in solar activity will occur. Their work indicates that the maximum intensity of solar cycle 25, the ongoing sunspot cycle, is imminent and likely to occur within a year.

Biology: Marine Biology: Zoology Ecology: Animals Ecology: Nature Ecology: Research Ecology: Sea Life
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Fish ecologist's research indicates need to conserve iconic migratory snook in Mexico      (via sciencedaily.com)     Original source 

Biologists investigated the snook’s almost 400-mile migration up into the rainforest habitat of the Usumacinta River. They have found that the snook, which connect aquatic food webs and support fisheries, spawn and start their lives in coastal nursery habitats before moving into river habitats that offer an array of food resources.

Biology: Marine Ecology: Sea Life Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography Geoscience: Severe Weather
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Giant sea salt aerosols play major role in Hawai'i's coastal clouds, rain      (via sciencedaily.com)     Original source 

A new study from atmospheric scientists revealed that the coastline can produce up to five times the concentration of giant sea salt aerosols compared to the open ocean and that coastal clouds may contain more of these particles than clouds over the open ocean -- affecting cloud formation and rain around the Hawaiian Islands. 

Biology: Biochemistry Biology: Marine Ecology: Extinction Ecology: General Ecology: Nature Ecology: Research Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography Paleontology: Climate
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Deoxygenation levels similar to today's played a major role in marine extinctions during major past climate change event      (via sciencedaily.com)     Original source 

Scientists have made a surprising discovery that sheds new light on the role that oceanic deoxygenation (anoxia) played in one of the most devastating extinction events in Earth's history. Their finding has implications for current day ecosystems -- and serves as a warning that marine environments are likely more fragile than apparent. New research, published today in leading international journal Nature Geosciences, suggests that oceanic anoxia played an important role in ecosystem disruption and extinctions in marine environments during the Triassic--Jurassic mass extinction, a major extinction event that occurred around 200 million years ago.  Surprisingly however, the study shows that the global extent of euxinia (an extreme form of de-oxygenated conditions) was similar to the present day.

Biology: Marine Biology: Zoology Ecology: Nature Ecology: Sea Life Geoscience: Geography Geoscience: Oceanography
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Pioneering research method reveals bluefin tuna's fate      (via sciencedaily.com)     Original source 

The Mediterranean spawning grounds of Bluefin tuna -- the largest tuna and one of the most powerful fish in the sea -- are under threat, due to rising sea temperatures. A pioneering research method to decode bluefin 'otoliths' (a stony tissue found in their ear) has determined the threshold sea temperature at which bluefin thrive to be 28 degrees Celsius.

Biology: Marine Biology: Microbiology Chemistry: General Ecology: Sea Life Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Geology Geoscience: Oceanography
Published

Separating out signals recorded at the seafloor      (via sciencedaily.com)     Original source 

Research shows that variations in pyrite sulfur isotopes may not represent the global processes that have made them such popular targets of analysis and interpretation. A new microanalysis approach helps to separate out signals that reveal the relative influence of microbes and that of local climate.

Archaeology: General Biology: General Biology: Marine Ecology: General Ecology: Research Ecology: Sea Life Environmental: Ecosystems Geoscience: Oceanography
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How shipwrecks are providing a refuge for marine life      (via sciencedaily.com)     Original source 

New research has highlighted how the estimated 50,000 wrecks around the UK coastline are protecting the seabed, and the species inhabiting it, in areas still open to bottom-towed fishing.

Environmental: General Geoscience: Environmental Issues Geoscience: Severe Weather
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A fifth higher: Tropical cyclones substantially raise the Social Cost of Carbon      (via sciencedaily.com)     Original source 

Extreme events like tropical cyclones have immediate impacts, but also long-term implications for societies. A new study now finds: Accounting for the long-term impacts of these storms raises the global Social Cost of Carbon by more than 20 percent, compared to the estimates currently used for policy evaluations. This increase is mainly driven by the projected rise of tropical-cyclone damages to the major economies of India, USA, China, Taiwan, and Japan under global warming.

Biology: Marine Ecology: Nature Ecology: Sea Life Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Environmental Issues
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Predicting the fate of shallow coastal ecosystems for the year 2100      (via sciencedaily.com)     Original source 

A new study of shallow-water ecosystems estimates that, by 2100, climate change and coastal land usage could result in significant shrinkage of coral habitats, tidal marshes, and mangroves, while macroalgal beds remain stable and seagrass meadows potentially expand.

Biology: Marine Biology: Zoology Ecology: General Ecology: Nature Ecology: Research Ecology: Sea Life Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
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Deep-sea mining and warming trigger stress in a midwater jellies      (via sciencedaily.com)     Original source 

The deep sea is home to one of the largest animal communities on earth which is increasingly exposed to environmental pressures. However, our knowledge of its inhabitants and their response to human-induced stressors is still limited. A new study now provides first insights into the stress response of a pelagic deep-sea jellyfish to ocean warming and sediment plumes caused by deep-sea mining.

Engineering: Robotics Research Geoscience: Geography Geoscience: Severe Weather Offbeat: Earth and Climate Offbeat: General Offbeat: Paleontology and Archeology
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AI finds formula on how to predict monster waves      (via sciencedaily.com)     Original source 

Using 700 years' worth of wave data from more than a billion waves, scientists have used artificial intelligence to find a formula for how to predict the occurrence of these maritime monsters. Long considered myth, freakishly large rogue waves are very real and can split apart ships and even damage oil rigs.

Biology: Biochemistry Biology: Cell Biology Biology: Marine Biology: Zoology Ecology: Animals Ecology: Sea Life Offbeat: General Offbeat: Plants and Animals
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Innovative aquaculture system turns waste wood into nutritious seafood      (via sciencedaily.com)     Original source 

Innovative aquaculture system turns waste wood into nutritious seafood. Researchers hoping to rebrand a marine pest as a nutritious food have developed the world's first system of farming shipworms, which they have renamed 'Naked Clams'.

Biology: Biochemistry Biology: General Biology: Marine Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: Sea Life
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Half of tested caviar products from Europe are illegal, and some aren't even caviar      (via sciencedaily.com)     Original source 

Wild caviar, a pricey delicacy made from sturgeon eggs, has been illegal for decades since poaching brought the fish to the brink of extinction. Today, legal, internationally tradeable caviar can only come from farmed sturgeon, and there are strict regulations in place to help protect the species. However, by conducting genetic and isotope analyses on caviar samples from Bulgaria, Romania, Serbia, and Ukraine -- nations bordering the remaining wild sturgeon populations -- a team of sturgeon experts found evidence that these regulations are actively being broken. Their results show that half of the commercial caviar products they sampled are illegal, and some don't even contain any trace of sturgeon.

Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Geology Geoscience: Oceanography Geoscience: Severe Weather Paleontology: Climate Paleontology: General
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Deep dive on sea level rise: New modelling gives better predictions on Antarctic ice sheet melt      (via sciencedaily.com)     Original source 

Using historical records from around Australia, an international team of researchers have put forward the most accurate prediction to date of past Antarctic ice sheet melt, providing a more realistic forecast of future sea level rise.   The Antarctic ice sheet is the largest block of ice on earth, containing over 30 million cubic kilometers of water.   Hence, its melting could have a devasting impact on future sea levels. To find out just how big that impact might be, the research team turned to the past.  

Biology: Biochemistry Biology: General Biology: Zoology Ecology: Animals Ecology: General Ecology: Research Geoscience: Severe Weather
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Idai vs. Impalas: New study shows in real-time what helps mammals survive a natural disaster      (via sciencedaily.com)     Original source 

After a massive cyclone transformed the ecosystem of Gorongosa National Park, researchers studied the immediate and knock-on impacts to garner lessons for wildlife managers around the world.

Biology: Cell Biology Biology: General Biology: Marine Chemistry: General Chemistry: Inorganic Chemistry Ecology: Sea Life Physics: Optics
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A deep-sea fish inspired researchers to develop supramolecular light-driven machinery      (via sciencedaily.com)     Original source 

Chemists have developed a bioinspired supramolecular approach to convert photo-switchable molecules from their stable state into metastable one with low-energy red light. Their work enables fast, highly selective, and efficient switching, providing new tools for energy storage, activation of drugs with light, and sensing applications.