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Tag: "sea" at biology news

Advancements In Genomics Foster Deep Sea Discoveries

... to begin to develop an accurate portrayal of deep sea life forms and how they survive in the harsh condi... the deep ocean, including the application of deep sea bacterial genes for improving human nutrition and degrading pollutants, and calculating possibilitie...

Oceans more vulnerable to agricultural runoff than previously thought, study finds

... an oxygen-depleted dead zone at the bottom of the sea where few creatures can survive. A massive dead zone appears every summer in the Gulf of Mexico off the coast of Louisiana and Texas. Scientists believe that agricultural runoff from the Mississippi River plays a pivotal role in creating this annual ...

Road salt affects mitigation wetlands

...noff wetland reach peaks that are half as salty as sea water," Silver told attendees at the North American Benthological Meeting today (May 24) at the 2005 Joint Assembly in New Orleans. "We recorded peaks during the winter as high as 10 to 12 parts per thousand in the runoff wetland and 2.5 to 3 parts p...

To sea or not to sea: When it comes to salmon sex, size sometimes doesn't matter

...ajority ?but not all ?travel thousands of miles to sea and back to the streams where they hatched. There... individuals in some populations do not migrate to sea at all," he says. "These fish sacrifice the growing opportunities at sea for the relative safety of ...

Elephant seal pups suffer from ocean warming

...fered against ocean temperature changes than other sea mammals. A study by Dr Burney Le Boeuf and Dr David Crocker from the University of California in Santa Cruz, shows that as waters get warmer the average weight of an elephant seal pup decreases. Weaning weights are a direct indicator of food availab...

Low oxygen likely made Great Dying worse, greatly delayed recovery

...ontinent called Pangea, and most of the land above sea level became uninhabitable because low oxygen made...when the oxygen level hit 16 percent, breathing at sea level would have been like trying to breathe at the summit of a 9,200-foot mountain today. By the ea...

Scientists reveal the shape of a protein that helps retroviruses break into cells

...ontinent called Pangea, and most of the land above sea level became uninhabitable because low oxygen made...when the oxygen level hit 16 percent, breathing at sea level would have been like trying to breathe at the summit of a 9,200-foot mountain today. By the ea...

Scripps scientists find potential for catastrophic shifts in Pacific ecosystems

...ical characteristics of the North Pacific, such as sea surface temperature (which were suspected to show regimes), are not nonlinear. Rather, these physical characteristics evolve in a complicated but apparently linear manner, involving the sum of many variables. This finding means that suspected regime-...

Currents could disrupt ocean food chain

If increased precipitation and sea surface heating from global warming disrupts the Atlantic Conveyer current ?as some scientists predict ?the effect on the ocean food chain in the Atlantic and other oceans could be severe, according to a new study just published in Nature. In a wors...

Hydrogen and methane provide raw energy for life at 'Lost City'

...cation technology to help direct investigations at sea during a mission with co-PI Bob Ballard, his Institute for Exploration, the Jason Foundation for Education and National Oceanic and Atmospheric Administration's ship and funding. Audiences at participating aquariums, museums and 20 Boys and Girls Clu...

NHGRI targets 12 more organisms for genome sequencing

...ior. The organisms are: a skate (Raja erinacea); a sea slug (Aplysia californica); a disease-carrying ins...imes go wrong. Aplysia (Aplysia californica) is a sea slug that has been a very useful model in studying learning and memory in humans. Aplysia have very ...

Scientists find viruses can't stick to sea bugs in the dark

...massive, toxic blooms, poisoning huge areas of the sea with their waste products and killing fish, sea mammals such as whales, dolphins and seals, and even humans. Control of these blooms is vital to the...

Sponges as drugs

...ogd has investigated the possibilities for rearing sea sponges in Indonesia. Some of these sponges contai...rprisingly few Indonesian species are suitable for sea rearing. Sea rearing Sedentary marine invertebrates such as sponges, are an important source for a...

Searching the depths of the straits of Florida for disease cures

...acular reefs, extensive cave systems, and abundant sea life, including the elusive whale shark. Harbor Branch scientists are attracted most to its steep topography between about 300 and 3,000 feet, which suggests that they will find the rocky walls that most commonly foster diverse deep-water ecosystems....

Tsunami-damaged coral reefs should be left to recover naturally, say scientists

...nly caused by the backwash ?waves returning to the sea that sucked back debris from the shore such as tre...ir developments a little to minimise the impact on sea life. Communities that are rebuilding hotels should take advantage of reconstruction funds to make s...

Evidence of 600-million-year old fungi-algae symbiosis discovered in marine fossils

... Present-day examples of such relationships in the sea are abundant. Now, there is an example from ancient ocean life. At a site where abundant algae lived in a shallow sub-tidal environment about 600 million years ago, Yuan and Xiao found three specimens that have evidence of two partners in a familiar...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

... species distribution in the shelf, slope and deep sea regions (the deep sea is generally agreed to begin at 1,000 meters). Investigations of the seawater's physical and chemica...

Scientists discover global pattern of big fish diversity in open oceans

...those for tiny zooplankton, and both are linked to sea surface temperature. "This is the great joy of sci...ey catch many other species too, including sharks, sea turtles and seabirds. To see whether findings based on the Japanese longline data could be applied t...

Bacterial genome sheds light on synthesizing cancer-fighting compounds

...ron didemnii, which lives symbiotically inside the sea squirt, actually produces the desired patellamides...aboratory once the bacterium was isolated from the sea squirt. Because samples of Prochloron were easily contaminated with remnants of life inside its anim...

Deep thinking: Scientists sequence a cold-loving marine microbe

...pen ocean, and nestled inside Arctic and Antarctic sea ice. To explain C. psychrerythraea's unique cold-adapted chemistry, TIGR researchers and collaborators first sequenced the bacterium's genome and analyzed its gene content for telltale proteins that might be cold-adaptive. Next, they predicted C. ps...

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