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Biology: Evolutionary Biology: General Biology: Marine Ecology: Extinction Ecology: Nature Ecology: Sea Life Environmental: Biodiversity Geoscience: Earth Science Geoscience: Geography
Published

Researchers discover a new species of larger benthic foraminifer from the Ryukyu Islands      (via sciencedaily.com)     Original source 

An international group of researchers have discovered a previously unknown species of large foraminifer, shedding new light on the ecological evolution and biodiversity of coral reefs in the Ryukyu Islands.

Anthropology: General Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Genetics Biology: Marine Biology: Molecular Biology: Zoology Ecology: Sea Life
Published

Tiny sea creatures reveal the ancient origins of neurons      (via sciencedaily.com)     Original source 

A new study sheds new light on the origins of modern brain cells. Researchers find evidence that specialized secretory cells found in placozoans, tiny sea creatures the size of a grain of sand, have many similarities to the neuron, such as the genes required to create a partial synapse. From an evolutionary point of view, early neurons might have started as something like these cells, eventually gaining the ability to create a complete synapse, form axons and dendrites and create ion channels that generate fast electrical signals -- innovations which gave rise to the neuron in more complex animals such as jellyfish. Though the complete story of how the first neuron appeared remains to be told, the study demonstrates that the basic building blocks for our brain cells were forming in the ancestors of placozoans grazing inconspicuously in the shallow seas of Earth around 800 million years ago.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Marine Biology: Microbiology Biology: Molecular Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Genetically modified bacteria break down plastics in saltwater      (via sciencedaily.com)     Original source 

Researchers have genetically engineered a marine microorganism to break down plastic in salt water. Specifically, the modified organism can break down polyethylene terephthalate (PET), a plastic used in everything from water bottles to clothing that is a significant contributor to microplastic pollution in oceans.

Biology: Marine Ecology: Nature Ecology: Sea Life Environmental: Biodiversity Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geography
Published

Rivers are rapidly warming, losing oxygen; aquatic life at risk      (via sciencedaily.com)     Original source 

Rivers are warming and losing oxygen faster than oceans, according to a new article. The study shows that of nearly 800 rivers, warming occurred in 87% and oxygen loss occurred in 70%.

Biology: Marine Biology: Microbiology Biology: Zoology Ecology: General Ecology: Research Ecology: Sea Life Environmental: Ecosystems Geoscience: Geography Geoscience: Oceanography
Published

Scientists find good places to grow long-spined sea urchins, a starting point to restore 'the lawn mowers of the reefs'      (via sciencedaily.com) 

Scientists are trying to raise as many urchins as possible because they eat algae that could otherwise smother reef ecosystems and kill corals. Researchers have identified algae on which larval sea urchins grow into juveniles in a lab setting.

Biology: Cell Biology Biology: Marine Ecology: Endangered Species Ecology: Extinction Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Sea Life Environmental: Biodiversity Environmental: Ecosystems Environmental: Water
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Freshwater connectivity can transport environmental DNA through the landscape      (via sciencedaily.com) 

A new article uses environmental DNA (eDNA) metabarcoding to analyze fish and zooplankton communities. The study found that the movement of water between freshwater bodies, or freshwater connectivity, can transport eDNA. This highlights the potential of eDNA to provide a comprehensive view of freshwater biodiversity.

Biology: Marine Ecology: Nature Ecology: Sea Life Geoscience: Geography Geoscience: Oceanography
Published

Conservation in shark sanctuaries      (via sciencedaily.com)     Original source 

Researchers are assessing the efficacy of shark sanctuaries by developing a modeling system that utilizes publicly accessible fishing data to determine shark catch and mortality rates. Their findings represent an important step in utilizing data science to tackle oceanic conservation challenges.

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

'A crab is never just a crab'      (via sciencedaily.com)     Original source 

A herring in the North Sea, a crab in the Wadden Sea or an anemone fish on a coral reef, ... biologists like to think in terms of individual species that all have their own place within food webs in ecosystems across the world. 'But that is surely too simplistic thinking,' researchers warn.

Biology: Marine Ecology: Sea Life Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geography Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Floating sea farms: A solution to feed the world and ensure fresh water by 2050      (via sciencedaily.com)     Original source 

The sun and the sea -- both abundant and free -- are being harnessed in a unique project to create vertical sea farms floating on the ocean that can produce fresh water for drinking and agriculture.

Biology: Evolutionary Biology: Marine Ecology: Animals Ecology: General Ecology: Nature Ecology: Research Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
Published

Scientists find evidence of sea star species hybridization      (via sciencedaily.com) 

A new study presents genomic evidence of hybridization between two closely related species of sea stars -- Asterias rubens, the common starfish, and Asterias forbesi, known as Forbes' sea star.

Biology: Marine Biology: Zoology Ecology: Endangered Species Ecology: Sea Life
Published

First U.S. study of nest temperature impacts on leatherback hatchlings      (via sciencedaily.com)     Original source 

A study shows nest temperatures affect leatherback hatchling shape, performance and nest success. Lower temperatures produced longer hatchlings; highest temperatures produced hatchlings with thicker body depths. Hatchlings from the highest nest temperatures had shorter flippers. Righting response (ability to flip over) scores were significantly lower in hatchlings from hotter nests. Hatchlings that were smaller and/or had a larger body depth struggled to right themselves. The leatherback turtle nests in this study also had an overall lower hatching success (45 percent) than loggerhead (73 percent) and green sea turtles (70 percent).

Biology: Marine Biology: Zoology Ecology: Endangered Species Ecology: Extinction Ecology: Nature Ecology: Sea Life Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography Offbeat: Earth and Climate Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: General
Published

Fossil spines reveal deep sea's past      (via sciencedaily.com)     Original source 

Right at the bottom of the deep sea, the first very simple forms of life on earth probably emerged a long time ago. Today, the deep sea is known for its bizarre fauna. Intensive research is being conducted into how the number of species living on the sea floor have changed in the meantime. Some theories say that the ecosystems of the deep sea have emerged again and again after multiple mass extinctions and oceanic upheavals. Today's life in the deep sea would thus be comparatively young in the history of the Earth. But there is increasing evidence that parts of this world are much older than previously thought.

Chemistry: Inorganic Chemistry Computer Science: Encryption Computer Science: General Computer Science: Quantum Computers Energy: Technology Mathematics: Puzzles Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
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Better cybersecurity with new material      (via sciencedaily.com) 

Digital information exchange can be safer, cheaper and more environmentally friendly with the help of a new type of random number generator for encryption. The researchers behind the study believe that the new technology paves the way for a new type of quantum communication.

Biology: Biotechnology Biology: Evolutionary Biology: Genetics Biology: Marine Ecology: Animals Ecology: Sea Life Paleontology: Early Mammals and Birds Paleontology: General
Published

Mutation rates in whales are much higher than previously reported      (via sciencedaily.com)     Original source 

An international team of marine scientists has studied the DNA of family groups from four different whale species to estimate their mutation rates. Using the newly determined rates, the group found that the number of humpback whales in the North Atlantic before whaling was 86 percent lower than earlier studies suggested.

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

Coastal fisheries show surprising resilience to marine heat waves      (via sciencedaily.com) 

New research found that marine heat waves -- prolonged periods of unusually warm ocean temperatures -- haven't had a lasting effect on the fish communities that feed most of the world. The finding is in stark contrast to the devastating effects seen on other marine ecosystems cataloged by scientists after similar periods of warming, including widespread coral bleaching and harmful algal blooms.

Biology: Marine Ecology: Animals Ecology: Sea Life Geoscience: Geography
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Rare 14-ft smalltooth sand tiger shark washes up on Irish coast      (via sciencedaily.com)     Original source 

Scientists believe a huge 14ft smalltooth sand tiger shark, which washed up at Kilmore Quay, Co. Wexford, earlier this year, represents the first of its species to have been found in Ireland's waters. Two other individuals of the same species also washed up on the UK coastline, suggesting this species' geographic range has shifted. The scientists believe these rare finds may offer a window into the future, with more and more species traditionally confined to more tropical waters expected to visit Irish and British waters.

Biology: Marine Biology: Microbiology Ecology: Sea Life Geoscience: Oceanography
Published

New species of marine bacteria isolated from a deep-sea cold seep      (via sciencedaily.com)     Original source 

Researchers have isolated a new strain of marine bacteria with unique characteristics from the ocean seabed.

Biology: Marine Ecology: Sea Life Geoscience: Geography Geoscience: Oceanography
Published

Historic red tide event of 2020 fueled by plankton super swimmers      (via sciencedaily.com)     Original source 

A major red tide event occurred in waters off Southern California in the spring of 2020, resulting in dazzling displays of bioluminescence along the coast. Now, for the first time, a study has pinpointed how the plankton species Lingulodinium polyedra -- a dinoflagellate -- was able to create such an exceptionally dense bloom. The answer lies in dinoflagellates' remarkable ability to swim, which lends them a competitive advantage over other species of phytoplankton.

Biology: Marine Ecology: Sea Life Environmental: Ecosystems Geoscience: Environmental Issues Geoscience: Oceanography
Published

Due to sea-ice retreat, zooplankton could remain in the deep longer      (via sciencedaily.com)     Original source 

Due to intensifying sea-ice melting in the Arctic, sunlight is now penetrating deeper and deeper into the ocean. Since marine zooplankton respond to the available light, this is also changing their behavior -- especially how the tiny organisms rise and fall within the water column. As an international team of researchers has now shown, in the future this could lead to more frequent food shortages for the zooplankton, and to negative effects for larger species including seals and whales.