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Categories: Ecology: Sea Life, Offbeat: Space

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Biology: Zoology Ecology: Sea Life Environmental: Water
Published

On the trail of the silver king: Researchers reveal unprecedented look at tarpon migration      (via sciencedaily.com)     Original source 

New research unveils a dataset, gathered over five years, that gives the finest-grained detail into the timing and spatial extent of tarpon migration. The work leveraged networks of thousands of acoustic receivers that tracked 200 tarpon over more than five years. One of the key findings is that there are two distinct subgroups of tarpon, which has immediate implications for efforts to conserve the fish, known to anglers as the 'Silver King.'

Biology: Biochemistry Biology: General Biology: Marine Ecology: Extinction Ecology: Invasive Species Ecology: Nature Ecology: Sea Life
Published

Tiny spirits roam the corals of Japan -- two new pygmy squids discovered      (via sciencedaily.com)     Original source 

Named after Japanese folklore, two cephalopod species have been discovered in the coastal waters of the Okinawa Islands.  

Offbeat: General Offbeat: Space Space: Astronomy Space: Cosmology Space: Exploration Space: General Space: The Solar System
Published

Astrophysicists scan the Galaxy for signs of life      (via sciencedaily.com)     Original source 

Astrophysicists are scanning the Universe for 'technosignatures' emanating from distant planets that would provide support for the existence of intelligent, alien life. Researchers plan to monitor millions of star systems.

Biology: Marine Ecology: Sea Life Environmental: Ecosystems Environmental: Water Geoscience: Earth Science Geoscience: Geography Geoscience: Oceanography Paleontology: Climate
Published

Light, freshwater sticks to Greenland's east coast      (via sciencedaily.com)     Original source 

Meltwater that runs along the east coast of Greenland, hardly enters the open ocean before reaching the western side of the island.  In the changing climate, fresh water from Greenland and the Arctic could disrupt the circulation in the Atlantic Ocean.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

Researchers probe how a piece of the moon became a near-Earth asteroid      (via sciencedaily.com)     Original source 

Two years after the striking discovery that a near-Earth asteroid could be a chunk of the moon, another UArizona research group has found that a rare pathway could have enabled this to happen.

Offbeat: General Offbeat: Space Space: General
Published

LIGO surpasses the quantum limit      (via sciencedaily.com)     Original source 

Researchers report a significant advance in quantum squeezing, which allows them to measure undulations in space-time across the entire range of gravitational frequencies detected by LIGO. 

Offbeat: General Offbeat: Space Space: Exploration Space: General Space: The Solar System
Published

The Moon is 40 million years older than previously thought      (via sciencedaily.com)     Original source 

By analyzing tiny lunar crystals gathered by Apollo 17 astronauts in 1972, researchers recalculated the age of the Earth's Moon. Although previous assessments estimated the Moon as 4.425 billion years old, the new study discovered it is actually 4.46 billion years old -- 40 million years older than previously thought.

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

Soft, living materials made with algae glow under stress      (via sciencedaily.com)     Original source 

Researchers have developed soft yet durable materials that glow in response to mechanical stress, such as compression, stretching or twisting. The materials derive their luminescence from single-celled algae known as dinoflagellates, which are embedded within the materials. The work was inspired by the bioluminescent waves caused by dinoflagellates during red tide events at San Diego's beaches.

Archaeology: General Biology: Biochemistry Biology: Marine Biology: Zoology Ecology: Sea Life Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils
Published

Ancient sea monster remains reveal oldest mega-predatory pliosaur      (via sciencedaily.com)     Original source 

The fossils of a 170-million-year-old ancient marine reptile from the Age of Dinosaurs have been identified as the oldest-known mega-predatory pliosaur -- a group of ocean-dwelling reptiles closely related to the famous long-necked plesiosaurs. The findings are rare and add new knowledge to the evolution of plesiosaurs.

Biology: Cell Biology Biology: Marine Biology: Microbiology Ecology: Endangered Species Ecology: Extinction Ecology: Invasive Species Ecology: Nature Ecology: Sea Life Environmental: Biodiversity Environmental: Ecosystems Geoscience: Geography
Published

Soil carried on sea freight loaded with dangerous pests and diseases, research finds      (via sciencedaily.com)     Original source 

While sea freight is recognised as a pathway for the movement of exotic organisms, there is little research that has quantified the risk. Soil collected from the external surfaces of sea freight was found to support live microorganisms, worms, seeds and insects, including various regulated biosecurity organisms. The research confirms that shipping containers provide a pathway for the movement of exotic species.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General
Published

Astronomers detect most distant fast radio burst to date      (via sciencedaily.com)     Original source 

An international team has spotted a remote blast of cosmic radio waves lasting less than a millisecond. This 'fast radio burst' (FRB) is the most distant ever detected. Its source was pinned down by the European Southern Observatory's (ESO) Very Large Telescope (VLT) in a galaxy so far away that its light took eight billion years to reach us. The FRB is also one of the most energetic ever observed; in a tiny fraction of a second it released the equivalent of our Sun's total emission over 30 years.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Marine Ecology: Sea Life Environmental: Water
Published

DNA shows where Washington culvert replacements helped spawning salmon      (via sciencedaily.com)     Original source 

University and federal scientists used genetic sleuthing to study how salmon were affected by two major culvert replacements near the city of Bellingham. One project, a major upgrade under Interstate-5, had a big impact, while the other old culvert may have been less of a barrier to fish. Authors from the UW and NOAA are studying the use of environmental DNA, or eDNA, in future environmental impact reporting.

Biology: Biochemistry Biology: Marine Ecology: Extinction Ecology: General Ecology: Research Ecology: Sea Life Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography Geoscience: Severe Weather
Published

Scientists discover deepest known evidence of coral reef bleaching      (via sciencedaily.com)     Original source 

Scientists have discovered the deepest known evidence of coral reef bleaching, more than 90 metres below the surface of the Indian Ocean. Identified during a research cruise, the damage to the deeper reefs in the Central Indian Ocean has been attributed to significant changes in the region's ocean temperature caused by the Indian Ocean Dipole. The researchers have also warned such incidences are only likely to increase as a result of present and future climate change.

Biology: Marine Ecology: Endangered Species Ecology: Extinction Ecology: Nature Ecology: Sea Life Paleontology: Fossils Paleontology: General
Published

Waves of change: How sea-levels and climate altered the marine ecosystems at the South Pole 390-385 million years ago      (via sciencedaily.com)     Original source 

New research reveals a chain of environmental disasters. These took place in what is today's South Africa, during an ancient time period called the Early-Middle Devonian. The crises led to the extinction of a unique group of marine animals called the Malvinoxhosan biota.

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

Pinpointing the emergence of muddy flavors in your fish      (via sciencedaily.com)     Original source 

Many people have experienced a muddy off-flavor in farmed fish. While the aquaculture industry has known about the problem for 20 years, it continues to impact the consumption of otherwise healthy and potentially sustainable fish. Now, researchers have been able to pinpoint exactly when the off-flavors emerge. And this can make it easier to deal with the compounds that turn people away from farmed fish.

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

Biodegradable plastics still damaging to fish      (via sciencedaily.com)     Original source 

Biodegradable plastics may not be the solution to plastic pollution many hoped for, with a new study showing they are still harmful to fish.

Biology: Biochemistry Biology: Marine Ecology: Sea Life Environmental: Biodiversity Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Drought conditions expose rivers to hotter water temperatures      (via sciencedaily.com)     Original source 

A new study reveals how reduced water flows and rising atmospheric temperatures are set to heat our rivers -- creating major challenges for aquatic life, ecosystems, and society.

Biology: Biochemistry Biology: General Biology: Marine Ecology: General Ecology: Research Ecology: Sea Life Environmental: Biodiversity Environmental: Ecosystems
Published

New mollusk and crustacean species in symbiosis with worms in dead coral rocks      (via sciencedaily.com)     Original source 

The symbiotic communities of invertebrates in dead coral gravel on the shallow, warm-temperate coast of the Kii Peninsula in western Japan. New bivalve species and sideswimmer have been found to live communally with the greenish Bonellia spoonworm. Live-in symbionts share the burrows of other organisms in sand and mud on the seabed. However, studies on burrow niches in rigid substrates, such as rocks on the seabed, have been scarce.