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Tag: "marine" at biology news

Envisat captures first image of Sargassum from space

...and season it represents a significant fraction of marine primary productivity." Marine primary production is the process by which floating vegetation, such as phytoplankton and seaweed, absorb atmospheric carbon dioxide through photosynthesis and convert it into organic carbon. By absorbing half of the...

Marine phytoplankton changes form to protect itself from different predators

...iameter. Conducted largely at Georgia Tech’s marine lab in Savannah, Ga., the research was sponsored b...of such a complex and species-specific response in marine phytoplankton. Hay suspects scientists may find other examples of complex defensive strategies when...

New research shows sharks use their noses and bodies to locate smells

..., according to new research from Boston University marine biologists, sharks can not use just their noses to locate prey; they also need their skin – specifically a location called the lateral line. The lateral line is an organ used by all fish to detect, with exquisite sensitivity, movement and vibration i...

Want to save polar bears? Follow the ice

...rally cannot get anywhere near these fast swimming marine mammals. Another threat to the bears is the unpredictability of the melting of the sea ice away from the coast regions that bears shift to in the warmest parts of the year. Bears that make it to shore may be there for increasingly longer periods of ...

Scientists discover 5 new species of sea slugs from the Tropical Eastern Pacific

...t has an extremely high rate of endemism among its marine organisms, continues to yield a wealth of never-before-described marine animals to visiting scientists at the Smithsonian Tropical Research Institute in Panama. Alicia Herm...

Puzzling plankton yield secrets to role in evolution/global photosynthesis

...iologists." "Assimilation of atmospheric CO2 by marine phytoplankton is a global-scale process that is re...oles of these organisms in contributing to primary marine productivity." ...

Climate change was the cause of Neanderthal extinction in the Iberian Peninsula

...based upon climate reconstructions elaborated from marine records and using the experience of Spanish and international research groups on Western Mediterranean paleoceanography. The conclusions point out that Neanderthal populations did suffer fluctuations related to climate changes before the first Homo S...

Healthy coral reefs hit hard by warmer temperatures

...he spread of infectious diseases among susceptible marine species has been brought to an end," said Don Rice...'re left with a big question. Can corals and other marine species successfully adapt or evolve, when faced with such change?" Rice said. Understanding the ...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...stinguish themselves by feeding primarily on other marine mammals such as seals, refrain from vocalizing whi...ant for understanding their important roles in the marine ecosystem. To increase opportunities for observing the whales, Kelly Newman ( k.newman@sfos.uaf.edu...

From the deep -- Researchers find new species of sea anemone

...liest of habitats ?the carcass of a dead whale. A marine biologist would say that discovering a new sea anemone isn't so unusual. But finding one that calls a dead whale home is what sets this new creature apart. Since the scientists who initially found these animals weren't sea anemone specialists, the...

Scientists discover new life in the Antarctic deep sea

Scientists have found hundreds of new marine creatures in the vast, dark deep-sea surrounding A...ea is potentially the cradle of life of the global marine species. Our research results challenge suggestions that the deep sea diversity in the Southern Ocea...

Study warns deep-sea mining may pose serious threat to fragile marine ecosystems

...al Science, and is co-authored by Rodney Fujita, a marine ecologist with U.S.-based Environmental Defense. A Canadian-based company is currently planning the world’s first commercial undersea exploration for high-grade gold and copper. They are targeting an area known as the Manus backarc basin off the ...

Cornell lab confirms deadly fish virus spreading to new species

...cts the virus may have originated from an infected marine fish off the Atlantic Coast and that the virus is still relatively new to the region. Other possible sources of the virus include the movement of infected fish by airborne or terrestrial predators, anglers using infected bait minnows, contaminated fi...

MIT's ocean model captures diversity of underwater forests

... of new information about the genetic diversity of marine microbes, recent advances in computational capability and a simple recognition of his own bias. "Physicists, like myself, have a bit of a reductionist view. We often shy away from the complexity of the real world in our models and prefer to reduce...

Cloning the smell of the seaside

...e released by microbes that live near plankton and marine plants, including seaweeds and some salt-marsh plants. The gas plays an important role in the formation of cloud cover over the oceans, with major effects on climate. Indeed, the phenomenon was used by James Lovelock as a plank to underpin his 'Gaia ...

Tracking sperm whales and jumbo squid

...3,000 feet or more. Now, in a new study, a team of marine scientists reports the successful tagging of sperm...rsity, and lead author Randall Davis, professor of marine biology at Texas A&M University-Galveston. Their results, published in the March 12 edition of t...

Woman's Day and For Womens of Science

... 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...

Mercury contamination of fish warrants worldwide public warning

... 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...

Farmed salmon could become an invasive species in forest streams

...ext invasive species. "Farmed fish escaping from marine net pens might become an invasive species in British Columbia, Washington or Alaska," says research fish biologist Peter Bisson. "Net pen culture of salmon is big business worldwide, and both advocates and opponents of salmon farming have been very v...

Smithsonian scientists discover new marine species in eastern Pacific

... Collin was surprised by the sheer number of novel marine organisms. "It's hard to imagine, while snorkeling around a tropical island that's only a three-hour flight from the United States, that half the animals you see are unknown to science," Collin said. "Overwhelming diversity," said Jon Norenburg, ...

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