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Tag: "ocean" at biology news

Scientists discover unique microbe in California's largest lake

...wo species of Acaryochloris live in relativelypure ocean water, but cannot survive there unless they are gr...containingsport fish that were introduced from the ocean many years ago," Woodexplains.She says the Salton Sea may have fostered this species ofAcaryochloris...

Octopuses occasionally stroll around on two arms, UC Berkeley biologists report

...ons." Because this trait evolves so rapidly after ocean fish colonize new environments, he added, "we wond... that controls this trait might still exist in the ocean fish. So we collected large numbers of ocean fish with complete armor, and we found a very low level...

Researchers trace evolution to relatively simple genetic changes

...ons." Because this trait evolves so rapidly after ocean fish colonize new environments, he added, "we wond... that controls this trait might still exist in the ocean fish. So we collected large numbers of ocean fish with complete armor, and we found a very low level...

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

...ithout foxes, seabirds transfer nutrients from the ocean to the land by feeding on marine fish and invertebrates and spreading nutrient-rich guano around the islands. Add foxes, and the indirect effects on the whole ecosystem are as dramatic as the direct effects on the seabirds. "Introduced species are a...

Same mutation aided evolution in many fish species, Stanford study finds

...st Ice Age ended roughly 10,000 years ago. Because ocean fish quickly evolved into such distinct populations when they colonized new freshwater lakes and streams, they are an ideal model for understanding how animals adapt to their unique environments. The recent work carries a few surprises. Kingsley sai...

The secret lives of whales

...ried DNA reveals a different story, a past with an ocean teeming with whales. It also shows a steadily gro...y have occurred in the whale fall fauna. “The deep ocean appears to be a major reservoir of biodiversity on the planet. Some of the oddest animals ever disco...

The secret to longevity in tubeworms

...on: by releasing its waste sulfate not up into the ocean but down into the sediments, L. luymesi stimulates the growth of sulfide-producing microbes, and ensures its own long-term survival. The sulfide this worm needs is created by a consortium of bacteria and archaea that live in the deep sea cold sedime...

Antarctic ice shelf retreats happened before

...ecent years. The retreat coincided with a shift in ocean currents that occurred after a long period of warm...ves like Larsen B, the new study suggests that the ocean may play a more significant role in destroying them than previously thought. The University of Durh...

Growth in the sea comes down to a struggle for iron

...ed over the low abundance of phytoplankton in some ocean waters that seemed to hold all the basic nutrients... needed to determine whether or not adding iron to ocean waters is a wise tool in any attempts to manage a changing climate. ...

UCSB scientists probe sea floor venting to gain understanding of early life on Earth

...in the microbes and minerals vented from below the ocean floor, say scientists at the University of Califor...hills that cover a large geomorphic terrain on the ocean floor and are the most common landforms on the Earth. However, little is known about hydrothermal ve...

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