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Tag: "fish" at biology news

For some young fish, early gene expression is a clear harbinger of fated lifestyle

As juveniles, individuals of many fish species face a developmental choice that will prof... at the genetic level. Researchers now report that fish that are very closely related genetically show dramatically different patterns of actual gene expres...

Thin tough skin, slow-growing gills protect larval Antarctic fish

... newly hatched Antarctic notothenioids, a group of fish whose adults thrive in icy waters because of antif...llinois atUrbana-Champaign say, because the larval fish of at least two species of notothenioids that inhabit the Ross Sea at McMurdo Sound and Terra Nova B...

Expedition discovers marine treasures

...tion's Museum of Natural History found scores more fish species than previously known in the region and va...an Biodiversity Initiative. Among the apparent new fish species found were two types of gobi, while the total number of fish species recorded reached 200, c...

Stanford study of owls finds link in brain between sight and sound

... be the same in all vertebrates, as even frogs and fish have gaze control." All animals have to be able to attend to certain stimuli and ignore others. "Now that we have found that the principle applies in owls as well as monkeys, we can figure out the mechanisms of how the brain manages attention," said...

Hooked on fishing, and we're heading for the bottom, says scientist

...de and political will. And, he says, the world's fish need a dynamic, high-profile political champion li... "peak fish" ?a peak in the biomass, or weight, of fish caught from the world's oceans ?in the late 1980s. Since then, while there have been regional variat...

Mechanism for memory revealed in neurons of electric fish

...he University of Texas at Austin studying electric fish have gained new insight into how memory is stored ...g Oestreich and colleagues show that when electric fish zap each other in dark waters, their neurons store a memory of the sizzling communiqué by turning on...

Ocean virus identified in human blood samples

...ed in 1932, and was found to be linked to uncooked fish and pork scraps fed to hogs. It's now known that that the same types of Vesiviruses ?named in part for the disease they can cause in hogs, vesicular exanthema of swine - are found in many other species. In a research article published in January in ...

There's something fishy about human brain evolution

...as early humans eating clams, frogs, bird eggs and fish from shoreline environments. This is what created ... sites in eastern Africa revealed a bevy of chewed fish bones, particularly catfish. More than just filling the larder, shorelines provided essential brai...

Evidence for omega 3 fats less conclusive than we thought, say experts

...n of long chain omega 3 fatty acids, found in oily fish and fish oils, and a shorter chain omega 3, found in some plant oils, is thought to protect against heart dis...

Marine mammals are on the frontline of failing ocean health

...t is also concerned about new data indicating that fish and other food sources - once thought to die too q...er in animals like polar bears and seals that have fish and marine mammal-based diets, while cadmium (a heavy metal associated with bone and renal disease) ...

GPSDB, the free Gene and Protein Synonyms DataBase

...s, such as generating bioenergy from agricultural, fish and forestry waste, produce bio-char as a byproduct. "The global importance of a bio-char sequestration as a byproduct of the conversion of biomass to bio-fuels is difficult to predict but is potentially very large," he added. Applying the knowledge...

Amazonian terra preta can transform poor soil into fertile

...s, such as generating bioenergy from agricultural, fish and forestry waste, produce bio-char as a byproduct. "The global importance of a bio-char sequestration as a byproduct of the conversion of biomass to bio-fuels is difficult to predict but is potentially very large," he added. Applying the knowledge...

Horseshoe crab decline threatens shorebird species

...ists with the Delaware and New Jersey divisions of fish and wildlife have been very helpful during this project, and they welcome researchers from all over the world," says Fraser. "We hope to see collaborative efforts like this continue so that we can learn how to better manage wildlife resources like th...

UF scientists reveal ancient origin of vertebrate skeleton

...val stage before it finally morphs into a boneless fish - is none other than collagen. This vital structural molecule is found in all vertebrates with backbones and jaws, including humans. "It was thought collagen was a relatively recent invention in vertebrate evolution that unites us with reptiles, amp...

Scientist uses dragonflies to better understand flight

...use a flapping motion," said Wang. "Whether it's a fish which flips its fins or a bird, they're actually using the same principle. "The way paper or leaves fall, and how insects fly, may give us some ideas about why animals use these methods at all," she said. ...

Pacific Islands paradise protected

...e. "If the coral and reefs are protected, then the fish will thrive and grow and bring us benefit," President Tong said. "In this way all species of fish can be protected so none become depleted or extinct." The Republic of Kiribati and the New England ...

UF scientists reveal ancient origin of vertebrate skeleton

...val stage before it finally morphs into a boneless fish - is none other than collagen. This vital structural molecule is found in all vertebrates with backbones and jaws, including humans. "It was thought collagen was a relatively recent invention in vertebrate evolution that unites us with reptiles, amp...

Ocean 'dead zones' trigger sex changes in fish, posing extinction threat

...tion, could spark the development of far more male fish than female, thereby threatening some species with...verabundance of males. As these predominately male fish mature, it is unlikely they will be able to reproduce in sufficient numbers to maintain sustainable ...

Ancient DNA helps UF researchers unearth potential hemophilia therapy

... dormant strand of DNA that has quietly existed in fish for millions of years, the researchers replaced th...h, employing a strand of DNA present in modern-day fish called a transposon to transport the gene directly into the DNA of the mice. Nonviral therapy is tho...

Marsupial genome reveals insights into mammalian evolution

...(placental) mammals, its organization is closer to fish and birds. "The clues we unearthed by looking at different genomes are also helping us to understand how our own intricate immune system evolved from the relatively simple immune system seen in lower vertebrates such as birds and fish," says Belov. ...

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