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Tag: "waters" at biology news

Growth in the sea comes down to a struggle for iron

...ch ship that left Hawaii, bound for the sub-Arctic waters of the western Pacific. Owned by the Office of Nav...r the low abundance of phytoplankton in some ocean waters that seemed to hold all the basic nutrients for life. Speculation that iron provided part of the ans...

Clam embryo study shows pollutant mixture adversely affects nerve cell development

... on a species of surf clam readilyavailable in the waters off of her Cape Cod lab. The species is famousamong scientists as a model for the study of cellular processes thatare common among all animals, including humans.Reinisch and her colleagues collected surf clam eggs and sperm,fertilized them in vitro, ...

Study identifies predictors of HIV drug resistance in patients beginning triple therapy

... on a species of surf clam readilyavailable in the waters off of her Cape Cod lab. The species is famousamong scientists as a model for the study of cellular processes thatare common among all animals, including humans.Reinisch and her colleagues collected surf clam eggs and sperm,fertilized them in vitro, ...

Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra

...es, who has been doing research in Alaskan coastal waters for decades, and Byrd, the supervisory biologist for the Alaska Maritime National Wildlife Refuge. While working to save the endangered Aleutian Canada goose, which the foxes were driving toward extinction, Byrd had noticed the differences between is...

Scientists discover unique microbe in California's largest lake

...h amounts of infraredlight; in the Salton Sea, the waters themselves create a comparableniche. Wood thinks that the high availability of nutrients in thewaters of the Salton Sea is what allowed the microbe to survive withoutits hosts in the saline lake.At the University of Oregon since 1990, Wood is a membe...

Survey finds silver contamination in North Pacific waters

...on of what had been considered relatively pristine waters highlights the increasingly global impact of indus...rom Asia, with the highest concentrations in those waters closest to the Asian mainland." Mara Ranville, a researcher in Flegal's lab who earned her Ph.D. in...

Solutions that reduce death of marine life reeled in by International Smart Gear Competition

...ed sea turtles swim and become hooked in shallower waters than tuna, the target species of most longline commercial fishing. According to Duke University researchers, more than 200,000 loggerheads and 50,000 leatherbacks are accidentally caught annually by commercial longline fisheries. Beverly's idea is to...

NASA study finds snow melt causes large ocean plant blooms

...bian Sea lacks an opening to the north, the deeper waters are not well ventilated. Also when organic matter ...pread, leading to fish mortality. Oxygen-depleted waters also provide the perfect environment for the growth of a specialized group of bacteria called denitr...

Anammox bacteria produce nitrogen gas in oceans' snackbar

...a are present in the Atlantic ocean in oxygen poor waters at ~100 m depth. The number and activity of anammo...t to remove the ammonium that rises up from deeper waters and the seafloor. A unique combination of microbiological methods involving high resolution nutrient...

Habitat use by North Pacific right whales, Eubalaena japonica, in the Bering Sea and Gulf of Alaska

...hen right whales moved from deep continental slope waters in the SEBS during the 1940s to 1960s to now occup...n that right whales have been seen in middle-shelf waters from the 19th century to the present, it appears that the SEBS middle shelf was and continues to be ...

Africa to take it on chin again with climate change

... the 1950-99 average. The warming of Indian Ocean waters is well beyond the range expected from natural processes. This strengthens the case that greenhouse gases are involved, says Hurrell. In the Atlantic, natural variability affects ocean temperatures more strongly, making it more difficult to attribute...

Elephant seal pups suffer from ocean warming

...versity of California in Santa Cruz, shows that as waters get warmer the average weight of an elephant seal ...Despite ranging widely and foraging deeply in cold waters beyond coastal thermoclines in the northeastern Pacific, elephant seals are impacted significantly b...

Currents could disrupt ocean food chain

...t is a global phenomenon, Schmittner said. Surface waters from the Pacific Ocean, the Indian Ocean, the Arab...lowing southward. The upwelling from the mixing of waters constantly replenishes the supply of phytoplankton at the surface, forming a rich nutrient source at...

Climatologists discover deep-sea secret

... the past. This is the first evidence showing that waters in the southern hemisphere play an active role in ... as it adapted to climate changes in the past. The waters in the southern hemisphere are less salty than those in the northern hemisphere, and this freshwater...

Scientists discover global pattern of big fish diversity in open oceans

...east Pacific, particularly north of Easter Island; waters near Sri Lanka in the Indian Ocean; and the ocean east of the Great Barrier Reef in Australia also contain some of the best areas left. "In fact, much of the east coast of the U.S. is really a hotspot," says Myers. "And this extraordinary pattern of...

Researchers use 3-D imaging system to unveil swimming behavior of microscopic plankton

...ccur across downwelling fronts where cold and warm waters meet. Vertical currents are common in many oceanic regions, including mid-ocean fronts, shelf breaks, submarine canyons and submerged banks. "That small zooplankton are capable of remaining at a constant depth with a precision of centimeters, someti...

FSU scientist warns North Atlantic right whale facing extinction

... that mandate." Right whales range in the coastal waters of eastern North America from the Canadian Maritimes to Florida, regions heavily used by the military and by fishing and shipping industries. Despite international protections since 1935, it remains one of the most endangered whales in the world afte...

Scientists to mimic nature for newest cancer drugs

... that mandate." Right whales range in the coastal waters of eastern North America from the Canadian Maritimes to Florida, regions heavily used by the military and by fishing and shipping industries. Despite international protections since 1935, it remains one of the most endangered whales in the world afte...

Plankton can run, but can't hide from basking sharks

... public. Sims found that while the sharks in deep waters exhibited normal diving behaviour, tracking the zo... diving behaviour differs predictably between deep waters and in shallow seas close to plankton-rich boundaries in water temperature. Although the mechanisms...

'Sinkers' provide missing piece in deep-sea puzzle

... (commonly known as "sinkers") while exploring the waters of Monterey Bay using MBARI's remotely operated vehicles (ROVs). After seeing how common sinkers were, Robison wondered if they might be delivering significant amounts of food (in the form of organic carbon) to the deep sea. As he explains, "When it ...

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