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Tag: "sea" at biology news

Vital ocean prey play active role in environment

...endent on microorganisms found on the underside of sea ice for food, and as they grow they drift with pack ice. After they metamorphose in late winter and early spring, the juveniles move with the currents back to inshore waters. In summer, the juveniles are found inshore of the adults. The life cycle th...

Anemone genes reveal versatile building blocks for body plans

...ing an animal with a different body plan--a simple sea anemone. Sea anemones, along with corals and jel...nes from a tiny translucent cnidarian, the starlet sea anemone, Nematostella vectensis. The genes were the anemone's version of genes known to be responsib...

Secrets of the sea yield stronger artificial bone

...ult. Then, the Berkeley Lab researchers thought of sea ice. "We allow nature to guide the process. Seaw.... Then, they froze it. Just like the impurities in sea ice, the hydroxyapatite concentrates in the space between the ice crystals, creating layers and laye...

New pathways for autoimmune treatment identified

... cure autoimmune disease." A lipid purified from sea plants, called alpha-GalCer, is already under study as a way to boost iNKT cell numbers and fight autoimmune disease as well as cancer. i NKT cells' reactivity to alpha-GalCer, prompted the scientists to use it as a marker to examine the status of t...

Marine 'dead zone' off Oregon is spreading

...Dissolved oxygen sensors have been deployed on the sea floor both close to shore and in 260 feet of water...consume even more of the available oxygen near the sea floor, causing hypoxic conditions for marine life. The first event in 2002 caused a massive die-off...

Creating a window on 'oceans in motion'

...e international array of acoustic receivers on the sea floor. Tags harmlessly collect and report informa...ot just to smarter fisheries management, to better sea life conservation measures, and to the potential of abundant and sustainable stocks of commercial fi...

Viagra improves high altitude exercise performance up to 45% for some

...d little change. Sildenafil provided no benefit at sea level. Ten cyclists who took sildenafil at altitu... support strenuous physical activity than it is at sea level. Sildenafil works by inhibiting phosphodiestrase-5, an enzyme which degrades cyclic guanosine...

How satellite tracking revealed the migratory mysteries of endangered Atlantic loggerhead turtles

...lings left the coastal region to forage far out at sea before returning, later in life, to find food clos... greater numbers of the breeding population out at sea and far more that are vulnerable to the intensive longline fishing effort that occurs in that region...

Drug discovery team to explore newly discovered deep-sea reefs

... found. Harbor Branch's quest for drugs from the sea began in the early 1980s and has led to the collection of tens of thousands of marine organism samples and the identification of a number of promising potential drugs now in various stages of development for treating cancer, Alzheimer's, malaria, AID...

Rice scientists unveil 'nanoegg'

...ns at the nanoscale. "All metal particles have a sea of free electrons flowing continuously over their surface called plasmons," Nordlander said. "These plasmons slosh around constantly, just like waves in the ocean. Light also travels in waves, and when the wavelength of incoming light matches the wav...

Deep-water discovery

...e found. Harbor Branch's quest for drugs form the sea began in the early 1980s and has led to the collection of tens of thousands of marine organism samples and the identification of a number of promising potential drugs now in various stages of development for treating cancer, Alzheimer's disease, mala...

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

...udying members of a large population of loggerhead sea turtles that nest on the Cape Verde islands off of...ave the nesting grounds to feed on bottom-dwelling sea life in shallow coastal waters, others leave Cape Verde to roam the much deeper open ocean along the...

Heart has enough oxygen to survive hypothermia, CPR crucial

...te who became hypothermic after being swept out to sea on a cold current. Rats serve as model "In this study, we wanted to find out if there are problems with low blood pressure, low pulse, low cardiac output (the volume of blood the heart can pump per minute), or with oxygen transport to the cells...

Tiny airborne particles are a major cause of climate change

... the presence of small amounts of aerosols such as sea salt and desert dust. These tiny particles serve as the seeds around which water vapor in the air condenses, forming tiny water droplets that rise as they release heat. As the small droplets rise, they collide and merge with larger droplets. When the...

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

...m theocean floor, at 2500 meters depth, in thedeep sea vehicle Alvin. Bright invented"tubeworm artificial settlement cubes," or"baby traps" as the team calls them, tocollect young, just-settled larvae andjuveniles. They left the traps at the bottomnear an active hydrothermal vent and returnedthe next sea...

Tropical forest CO2 emissions tied to nutrient increases

...y retreating glaciers, thinning arctic ice, rising sea levels and longer growing seasons in many regions. ...

Pollution threatens coral health by preventing lesions from healing, UCF study shows

... they break up storm surge in the same manner that sea walls do. "We're losing places where animals can hide and fish can feed," Fauth said. "And reefs where people dive are being degraded." Tissue samples from mustard hill coral were taken from eight Broward County sites, including near-shore and of...

UN review shows need to halt destructive fishing practice

...her destructive fishing practices that damage deep sea life, Conservation International (CI) said. The ...the DOALOS Web site said extremely vulnerable deep sea habitats require protection, but that fishing for newly discovered resources in the high seas often ...

Mussels evolve quickly to defend against invasive crabs

...tation, which also explores how mussels respond to sea stars and to multiple predators. He anticipates completing his doctoral work by October 2006, when he will begin a post-doctoral position with UNH research associate professor Fred Short. Freeman notes that there's one predator mussels will not ne...

Exxon Valdez oil found in tidal feeding grounds of ducks, sea otters

...gically diverse zone is a prime feeding ground for sea otters, ducks and other wildlife. Previously, sc... the researchers estimated that in a given year, a sea otter ?digging three pits a day searching for clams and other prey ?would probably come into contact...

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