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Tag: "marine" at medical news

Penguins Altered Diet When Humans Began Hunting Whales and Seals

...ca switched from eating fish to krill (shrimp-like marine invertebrate animals) around the time that humans began hunting seals and whales, ancient eggshell fragments reveal. According to Steven Emslie of the University of North Carolina in Wilmington, and William Patterson of the University of Saskatch...

Organic Farming can Feed the World, U-M Study Shows

...lprit in creating dead zoneslow oxygen areas where marine life cannot survive. Proponents of organic farming argue that conventional farming also causes soil erosion, greenhouse gas emission, increased pest resistance and loss of biodiversity. For their analysis, researchers defined the term organic as:...

Organic Farming Can Feed the World

...it in creating dead zones---low oxygen areas where marine life cannot survive. Proponents of organic farming argue that conventional farming also causes soil erosion, greenhouse gas emission, increased pest resistance and loss of biodiversity. For their analysis, researchers defined the term organic as: ...

Desalination of Sea is Not a Solution to Tackle Global Water Scarcity: WWF

...ghter impact assessments to minimise damage to the marine environment, he said. Desalination plants already play a major role in providing water for drinking and irrigation in areas such as the Middle East, where freshwater supplies are scarce. But many other nations, including the US, China and Spain are...

Fishes Use Threat of Punishment in Mating Process

Australian marine scientists has found that fishes use the threat of punishment to keep would-be jumpers in the mating queue firmly in line and the social order stable. Their discovery, which has implications for the whole animal kingdom including humans, has been...

Saving Powers Of The Ocean On The Wane

...lution has had another drawback-adverse effects on marine life. Scientists say that this sink effect is c... ocean food chain. Scientists warn, the impacts on marine life could be severe. "The oceans are performing a great service to humankind by removing this car...

Deep-sea Mining can Damage Marine Ecosystem

...al Science, and is co-authored by Rodney Fujita, a marine ecologist with Environmental Defense....

One-sixth of Europe's Mammals Face Extinction, Warns Conservation Experts

...t the situation is even more perilous for Europe's marine mammals, of which 22 percent are classed as vulnerable or worse. Hilton-Taylor, a conservation expert involved with the study, adds. "The situation in the tropics is even worse." In tropical regions, which have greater numbers of species overal...

West Wants Developing Countries to Cut Down on Greenhouse Gas Emissions

...ls are critical to the survival of some commercial marine species and help buffer low-lying coastal areas. ...the spread of infectious disease among susceptible marine species has been brought to an end," said Don Rice, director of the National Science Foundation's Ch...

Global Warming 55 Million Years Ago Too, Thanks to Fossil Fuels

...PETM, which has been identified independently from marine sediments. "The dating allows us to link the (P...warming. The core contained the remnants of tiny marine creatures called foraminifera. Their shells preserve a chemical record of how the balance of carbon ...

Norwegian Glacier Shrinks and Marine Life Poisoned as the Globe Warms

...fast and toxic Californian// seawaters are killing marine life in their thousands. Global warming continues to wreak havoc. A couple of days ago it was reported that a Norwegian glacier had shrunk on an island 1,000 km from the North Pole, a usually frozen fjord (a long narrow arm of sea between high cl...

The Origin of the Brain Lies in a Worm

...To do so, they investigate the nervous system of a marine annelid worm called Platynereis dumerilii. "Platynereis can be considered a living fossil," says Arendt, "it still lives in the same environment as the last common ancestors used to and has preserved many ancestral features, including a prototype inv...

Climate Change Threatens Sundarbans and World Heritage Sites

...d deer, wild boar, fiddler crabs, mud crabs, three marine lizard species and five marine turtle species. They also host threatened species such as the estuarine crocodile, Indian python and...

Protecting Oceans is Important to Keeping Planet Cool

...nts and the conservation community need to step up marine protection if we are to support the global effort ...servation here. The group of the world's leading marine experts is focussing on the development of a system of marine protected areas (MPAs) and how marine ...

UF Launches Project to Bridge the Regeneration Gap

... all major human neurological diseases in a simple marine snail, as well as more than 600 genes that control development. In the realm of adult human stem cells, Brain Institute researchers have shown ordinary human brain cells can generate new brain tissue in mice and produce large amounts of new brain cel...

Methylmercury in Marine Fish Pose Health Risks to Pregnant Women and Elderly Men

... Little is known about the behavior of mercury in marine ecosystems and methylmercury in marine fish, the ingestion of which is the primary way most people at all levels of society worldwide are e...

Rhythms of Life

...al rhythm is a twelve hour cycle that influences marine life, and which fluctuates between the rising and the ebbing tide. Circadian rhythm is a 24-hour light-dark cycle that controls the physiological processes of all living things. They determine the quantity, quality and timing of hormones that i...

Shedding New Light on Proteorhodopsin

...odopsin, the light-sensitive protein found in many marine bacteria. Researchers at the U.S. Department of E...covered encoded within the genomes of uncultivated marine bacteria. The discovery implied that such bacteria possessed phototrophic as well as respiratory ca...

DDT Still Present In The Waters Of Los Angeles County

...ventually lead into the sea. This has affected the marine life to a larger extent. DDT is said to cause damage to liver, nervous and reproductive system. Though it is banned in many of the countries, scientists opine that it is an effective tool to fight malaria. In 2006, WHO has suggested the use of DD...

How Many Genes Does It Take to Learn? Lessons from Sea Slugs

Scientists analyzing the genomics of a marine snail have gotten an unprecedented look at brain m...onships of this very ancient and highly successful marine animal," said Dennis Steindler, Ph.D., executive director of UF's McKnight Brain Institute, who did ...

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