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Categories: Ecology: Sea Life, Space: Cosmology

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Biology: Marine Ecology: Sea Life Environmental: Ecosystems Environmental: Water Geoscience: Geochemistry Geoscience: Geography
Published

Discovery of invisible nutrient discharge on Great Barrier Reef raises concerns      (via sciencedaily.com)     Original source 

Scientists using natural tracers off Queensland’s coast have discovered the source of previously unquantified nitrogen and phosphorus having a profound environmental impact on the Great Barrier Reef. Groundwater discharge accounted for approximately one-third of new nitrogen and two-thirds of phosphorus inputs, indicating that nearly twice the amount of nitrogen enters the Reef from groundwater compared to river waters.

Biology: Biochemistry Biology: Marine Biology: Zoology Ecology: Extinction Ecology: Sea Life Environmental: Ecosystems
Published

Newly-discovered 'margarita snails' from the Florida Keys are bright lemon-yellow      (via sciencedaily.com)     Original source 

A newly-discovered, bright yellow snail has been discovered in the Florida Keys and named in honor of Jimmy Buffet's song 'Margaritaville.' The lemon-colored marine snail, along with its lime-green cousin from Belize, is the subject of a recent study ; researchers think these snails' bright colors might help deter predators.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Marine Biology: Zoology Ecology: Research Ecology: Sea Life
Published

Consistent metabolism may prove costly for insects in saltier water      (via sciencedaily.com)     Original source 

Increased salinity usually spells trouble for freshwater insects like mayflies. A new study finds that the lack of metabolic responses to salinity may explain why some freshwater insects often struggle in higher salinity, while other freshwater invertebrates (like mollusks and crustaceans) thrive. 

Space: Astronomy Space: Astrophysics Space: Cosmology Space: General Space: Structures and Features
Published

Pulsars may make dark matter glow      (via sciencedaily.com)     Original source 

The central question in the ongoing hunt for dark matter is: what is it made of? One possible answer is that dark matter consists of particles known as axions. A team of astrophysicists has now shown that if dark matter consists of axions, it may reveal itself in the form of a subtle additional glow coming from pulsating stars.

Biology: Biochemistry Biology: Cell Biology Biology: Evolutionary Biology: General Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Physics: General Space: Cosmology Space: General
Published

New 'Assembly Theory' unifies physics and biology to explain evolution and complexity      (via sciencedaily.com)     Original source 

An international team of researchers has developed a new theoretical framework that bridges physics and biology to provide a unified approach for understanding how complexity and evolution emerge in nature. This new work on 'Assembly Theory' represents a major advance in our fundamental comprehension of biological evolution and how it is governed by the physical laws of the universe.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Bursts of star formation explain mysterious brightness at cosmic dawn      (via sciencedaily.com)     Original source 

In the James Webb Space Telescope’s (JWST) first images of the universe’s earliest galaxies, the young galaxies appear too bright, too massive and too mature to have formed so soon after the Big Bang. Using new simulations, a team of astrophysicists now has discovered that these galaxies likely are not so massive after all. Although a galaxy’s brightness is typically determined by its mass, the new findings suggest that less massive galaxies can glow just as brightly from irregular, brilliant bursts of star formation.

Anthropology: General Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Marine Biology: Zoology Ecology: Extinction Ecology: Sea Life
Published

DNA from discarded whale bones suggests loss of genetic diversity due to commercial whaling      (via sciencedaily.com)     Original source 

Commercial whaling in the 20th century decimated populations of large whales but also appears to have had a lasting impact on the genetic diversity of today’s surviving whales, new research shows.

Space: Astrophysics Space: Cosmology Space: General Space: Structures and Features
Published

Colliding neutron stars provide a new way to measure the expansion of the Universe      (via sciencedaily.com)     Original source 

In recent years, astronomy has seen itself in a bit of crisis: Although we know that the Universe expands, and although we know approximately how fast, the two primary ways to measure this expansion do not agree. Now astrophysicists suggest a novel method which may help resolve this tension.

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

Sustainable protection of rapidly subsiding coastlines with mangroves      (via sciencedaily.com)     Original source 

Along the Asian coast lines there are many areas where rural communities experience alarming rates of sea level rises due to land subsidence up to 10 cm per year. This causes tremendous challenges on how to live there and protect these coasts. Scientists have now investigated the potential and limitation of mangrove restoration as a cost-effective and sustainable solution for coastal protection in rapidly subsiding areas.

Biology: Biochemistry Biology: Evolutionary Biology: General Biology: Zoology Ecology: Animals Ecology: Nature Ecology: Sea Life Environmental: Ecosystems
Published

Explosion in fish biodiversity due to genetic recycling      (via sciencedaily.com)     Original source 

The rapid formation of 500 different species of fish in a single lake, each with specialized ecological roles, resulted from a small but genetically diverse hybrid population.

Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Marine Biology: Microbiology Ecology: Sea Life
Published

Did animal evolution begin with a predatory lifestyle?      (via sciencedaily.com)     Original source 

Surprising findings on the development of sea anemones suggest that a predatory lifestyle molded their evolution and had a significant impact on the origin of their nervous system. The researchers were able to show that the young life stages (larvae) of the small sea anemone Aiptasia actively feed on living prey and are not dependent on algae. To capture its prey, the anemone larvae use specialized stinging cells and a simple neuronal network.

Biology: Biochemistry Biology: General Biology: Marine Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: Sea Life Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Why are killer whales harassing and killing porpoises without eating them?      (via sciencedaily.com)     Original source 

For decades, fish-eating killer whales in the Pacific Northwest have been observed harassing and even killing porpoises without consuming them —- a perplexing behavior that has long intrigued scientists.

Biology: Biochemistry Biology: General Biology: Marine Ecology: Sea Life Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Whales Around the World Play With Kelp Clumps      (via sciencedaily.com)     Original source 

A new article has analyzed another understudied behavior in baleen (filter-feeding) whales such as humpback whales in different populations across the northern and southern hemispheres. They appeared to roll around and 'play' with clumps of kelp and seaweed at the water's surface. The research also emphasizes that the behavior was similar in different individuals, regardless of where in the world it occurred.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Marine Ecology: Extinction Ecology: Nature Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
Published

Atlantic walrus more vulnerable than ever to Arctic warming      (via sciencedaily.com)     Original source 

Past cycles of climate change, along with human exploitation, have led to only small and isolated stocks of Atlantic walrus remaining. The current population is at high risk of the same issues affecting them severely, according to a new study.

Offbeat: General Offbeat: Space Physics: General Physics: Quantum Physics Space: Astrophysics Space: Cosmology Space: General
Published

Down goes antimatter! Gravity's effect on matter's elusive twin is revealed      (via sciencedaily.com) 

For the first time, in a unique laboratory experiment at CERN, researchers have observed individual atoms of antihydrogen fall under the effects of gravity. In confirming antimatter and regular matter are gravitationally attracted, the finding rules out gravitational repulsion as the reason why antimatter is largely missing from the observable universe.

Ecology: Sea Life Geoscience: Environmental Issues
Published

Researchers build and test a framework for achieving climate resilience across diverse fisheries      (via sciencedaily.com)     Original source 

What makes for a successful climate-resilient fishery, one that sustainably produces resources for human benefit despite increasing climate stressors and human impacts? It's a question that faces present and future fisheries, their practitioners and fishing communities as the world turns to the ocean to feed its growing population.