Tag: "sea" at biology news
Diatom genome reveals key role in biosphere's carbon cycle
...n tons of organic carbon produced each year in the sea
and in the process use carbon dioxide and produce...understand how these organisms react to changes in sea
temperatures, the amount of light penetrating the oceans, and nutrients. "Oceanographers thought we...
Component of volcanic gas may have played a significant role in the origins of life on Earth
...nyl sulfide is present in volcanic gasses and deep sea
vent emissions today, and since these geological phenomena were prominent features on the early Earth, it is reasonable to assume that the gas was present. In their report, the scientists demonstrate that the gas can bring about a vigorous chemic...
Large-scale forces shape local ocean life, global study shows
....I. -- In a groundbreaking, globetrotting study of sea
life in shallow waters, a research team led by a B... mollusks, worms, barnacles, anemones, urchins and sea
fans. These animals were studied in one habitat: flat, vertical rock walls, such as ones found along...
Ancient sea spider fossils discovered in volcanic ash
...en, Conn. Volcanic ash that encased and preserved sea
life in the Silurian age 425 million years ago nea...erefordshire, UK has yielded fossils of an ancient sea
spider, or pycnogonid, one of the most unusual types of arthropod in the seas today. Sea spiders are...
Almost good enough to eat
... Atlantic forest generally avoided tuna, rays, and sea
catfish. The researchers especially noticed that food taboos were different, depending on people's health status. Predatory fish are often tabooed for the ill, while fish that eat plant matter, invertebrates, or are omnivorous are recommended for co...
Solutions to stop fishermen returning dead and dying marine animals back into sea - study
...marine animals known as 'discards' back into the sea
after they are caught in their trawlers' nets. The...ards. Discards are mainly young or damaged fish or sea
life that cannot be sold because there is no market for them, or, if taken back to shore, would exce...
Look at past sea-level rise points to troubling future
...he Geological Society of America shows that rising sea
levels of as little as a half-meter per century ha... during this century. "About 5,000 years ago, when sea
level was rising approximately 50 centimeters per century, the upper part of Corpus Christi Bay incr...
Global warming's impact on US plants, animals determined from review of dozens of studies
...ishes and intertidal species, such as starfish and sea
anemone, now dominate waters near Monterey, Calif., that once were known for colder-water counterparts. Scientists generally agree that global warming over the past century has increased average temperatures worldwide by 1 degree Fahrenheit. Althoug...
Ancient marine invasion sheds light on diversity
Fossils from the sea
floor illuminate the relationship between local an... These Ordovician fossils show great diversity of sea
floor invertebrates. They made 700 individual collections and counted about 41,000 individual anim...
Extinction in ocean's mud presages key ecological changes
...tonishing array of animals - such as crabs, clams, sea
urchins, brittlestars and marine worms. These anim... Earth's surface, and that the productivity of the sea
is intricately linked to sediments that generate nutrients and food for other organisms such as fish...
Scientists advocate genomic sequencing of 'living fossil'
...l alterations that enabled them to emerge from the sea
and inhabit terrestrial environments. Both the coelacanth and the lungfish the only two living lobe-finned fishes are related to important evolutionary progenitors of land vertebrates. However, the lungfish genome is very large (more than 100 bi...
Delays in cutting greenhouse gasses could harm environment
...tica or Greenland, which would dramatically affect sea
level. The researchers reported their findings in a paper to be published in the Proceedings of the National Academy of Sciences. Oppenheimer is Princeton's Albert Milbank Professor of Geosciences and International Affairs. O'Neill holds appointments...
Plankton cool the southern hemisphere
...ern hemisphere there is a higher DMS flux from the sea
to the atmosphere and the sea
surface area is greater. Finally, the atmosphere has a lower oxidation capacity in the southern hemi...
Not finding life? Dig deeper.
... elevation of 4,500 meters (almost 15,000 feet) to sea
level. Every 300 meters (about 1,000 feet) along the transect, the team dug a pit and took two soil samples from a depth of 20 to 30 centimeters (8 to 12 inches). To ensure the sample was sterile, every time he took the sample, Betancourt ha...
How the sea urchin grows new spines
urchin's tough, brittle spines are an engineering ...te's Structural Biology Department, found that the sea
urchin uses another strategy. The material of the spines is first amassed in a non-crystalline form,...
Six reporters reach the 'Pinnacle of Excellence'
...unconventional theory that Polynesians crossed the sea
to Santa Barbara 1300 years ago and stayed long enough to share their sea-faring skills with the local Chumash people. The "Ancient Mariners" dramatized the science process and portrays how science is a dialogue. "What made this story exciting to wr...
Invasive sea squirt alive and well on Georges Bank
Woods Hole, Mass.--The invasive sea
squirt that federal and university researchers dis...a of seabed that is highly productive for fish and sea
scallops. In large parts of the affected area, the sea
squirts cover 50 percent or more of the seab...
Census of Marine Life - Discoveries and Highlights 2004: Scientists add 4m+ records, 13,000 species
...o depths of 6000 m along the abyssal plains of the sea
floor (CeDAMar) and near vents and seeps (ChEss) w...unlight, sustains life. Teams survey the sea
life and habitats of a classic, exploited regional ecosystem, the Gulf of Maine (GoMA), to refine ec...
Studies in Royal Society journals include stress in birds and depletion of medieval fish stocks
...he documented post-medieval expansion of England's sea
fisheries and coincided with a warm period when natural herring and cod stocks were probably low. This discovery shows that human impact on aquatic ecosystems could be far more ancient than is usually assumed. Contact: Dr JH Barrett, Department of Ar...
Study: Pigeons can sense the Earth's magnetic field; ability might allow them to return home
...use the Earth's magnetic field to navigate just as sea
turtles do. "Because of their amazing homing a...ng with Lohmann, one of the world's top experts on sea
turtle navigation, Mora has begun adapting the same procedures to use with the reptiles. ...
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