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Tag: "ocean" at biology news

Bacteria can help predict ocean change

...new study that may lead to more accurate models of ocean change. Scientists have long endorsed the concep...redictably, they can be used to improve models for ocean change. By including bacteria, which make up the vast majority of species on land and sea, "we hav...

Giant deep-sea tubeworm's meal ticket comes in as a skin infection

... near hydrothermal ventsmore than a mile below the ocean surface donot bother to eat: lacking mouth and sto...s swimming and attaches itself to thebottom of the ocean near a volcanic vent, itsmouth disappears and its stomach shrinksaway, even as it grows a specialize...

A dichotomy in migration patterns found for sea turtles in east Atlantic

...hers leave Cape Verde to roam the much deeper open ocean along the African coast and exhibit a distinct fee...cosystem. In contrast, adults foraging in the open ocean are smaller, havea more limited capacity for diving, and most likely feed on a somewhatdifferent set...

Ecologists home in on how sperm whales find their prey

...are highly successful at locating prey in the dark ocean depths. The sperm whale is the world's largest deep-diving toothed whale, feeding mainly on squid, but until now little has been known about the timing of prey detection and capture during dives. "Due to the difficulty of observing sperm whales dur...

On the track of tiny larvae, a new model elucidates connections in marine ecology

...uter model newly developed by researchers combines ocean current simulations and genetic forecasting to hel...mpossible to follow directly, advances in modeling ocean currents have made it possible to predict larval movements. However, until now it has remained diffi...

Deep-water discovery

...ipment. However, just as the vast majority of the ocean remains poorly mapped and unexplored ?even off Miami ?these potentially important areas remained unseen. In December 2005, as part of the NOAA Ocean Exploration program, Rosenstiel School researchers, led by Professors Grasmueck and Gregor Eberli, b...

Drug discovery team to explore newly discovered deep-sea reefs

...uipment. However, just as the vast majority of the ocean remains poorly mapped and unexplored--even off Miami--these potentially important areas remained unseen. In December of 2005, as part of the National Oceanic and Atmospheric Administrations Ocean Exploration program, University of Miami researchers,...

Healthy coral reefs of Madagascar resisting damage from climate change

...ave so far resisted the damaging effects of warmer ocean temperatures attributed to global climate change, ...ers believe cool water currents from adjacent deep ocean areas offset the warming effects of climate change. "The resiliency and health of the coral reefs w...

Creating a window on 'oceans in motion'

...f marine conditions and the migrations of fish and ocean animals throughout the world, according to interna...king Network, whose goal is to tag a vast range of ocean animals large and small with low-cost devices that vary in size from an almond to a AA battery and t...

Marine 'dead zone' off Oregon is spreading

...rsity. A fundamental new trend in atmospheric and ocean circulation patterns in the Pacific Northwest appe... like a fundamental shift in marine conditions and ocean behavior. In particular, a change in intensity and timing of coastal winds seems to play a significa...

Iron critical to ocean productivity, carbon uptake

... absence of the mineral stresses these microscopic ocean plants, triggering them to produce additional pigments that make ocean productivity appear more robust than it really is. As a result, past interpretations of satellite c...

NASA study solves ocean plant mystery

...scientists can determine what limits the growth of ocean algae, or phytoplankton, and how this affects Earth's climate. Phytoplankton is a microscopic ocean plant and an important part of the ocean food chain. By knowing what limits its growth scientists ca...

Researchers find molecular 'brake' to cell death

...ere ineffective because they are sequestered by an ocean of free nucleotides and ATP," he says. "No one had ever realized this kind of barrier existed to impede apoptosis." They found that cell mitochondria needed to release a large and sustained volume of CC to overcome this nucleotide barrier, and they ...

Ocean acidification threatens cold-water coral ecosystems

... "First, bottom trawlers smash them to bits. Then, ocean acidification will probably slow the skeletal growth and/or lead to weaker skeletons of those that remain. Ocean acidification will likely have serious and wide-reaching impacts, not only for coral ecosystems but for all life in the oceans. Many spe...

Taking evolution's temperature: Researchers pinpoint the energy it takes to make a species

...ecies of this type of plankton with differences in ocean temperatures at different latitudes ranging from the tropics to the arctic. The results agreed closely with predictions of their model. "It takes more energy than all the fossil fuel people burn on the planet in a year to form one new species of pla...

The critical importance of mangroves to ocean life

Mangroves, the backbone of the tropical ocean coastlines, are far more important to the global o...lved organic carbon that is supplied to the global ocean from land, according to a report to be published 21 February in Global Biogeochemical Cycles, a publ...

Alaska seal pup diet may hold key to decline of population

...luding: changes in availability of prey warming ocean waters pollution increased presence of humans who may disturb the animals Herring, capelin and eulachon are good sources of much-needed fat in the diet of harbor seals, but they have decreased in numbers in some areas where seals live, Polasek ex...

Anti-inflammatory drug's potentially deadly side effect found to be rare

... us that there are a lot of hidden icebergs in the ocean we're navigating, and we're going to bump up against those icebergs and have to work out ways to navigate around them." ...

Vegetables inhibit growth of prostate cancer in mice with human tumors

...h a problem." Finkelstein, who earned a Ph.D. in ocean sciences at UCSC in 2003, conducted this study as part of her thesis research. Her advisers were Donald Croll, associate professor of ecology and evolutionary biology, and Donald Smith, professor of environmental toxicology. In addition to Croll and ...

Albatross study shows regional differences in ocean contamination

...h a problem." Finkelstein, who earned a Ph.D. in ocean sciences at UCSC in 2003, conducted this study as part of her thesis research. Her advisers were Donald Croll, associate professor of ecology and evolutionary biology, and Donald Smith, professor of environmental toxicology. In addition to Croll and ...

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