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Latest Biological oceanography Stories

Warming Climates Intensify Carbon Dioxide Given Out By Oceans
2014-06-09 03:23:28

University of Edinburgh Rising global temperatures could increase the amount of carbon dioxide naturally released by the world's oceans, fueling further climate change, a study suggests. Fresh insight into how the oceans can affect CO2 levels in the atmosphere shows that rising temperatures can indirectly increase the amount of the greenhouse gas emitted by the oceans. Scientists studied a 26,000-year-old sediment core taken from the Gulf of California to find out how the ocean's...

How Do Phytoplankton Survive When A Critical Nutrient Is Hard To Find?
2014-06-06 03:50:45

Woods Hole Oceanographic Institution New study up-ends conventional wisdom Phytoplankton—tiny, photosynthetic organisms—are essential to life on Earth, supplying us with roughly half the oxygen we breathe. Like all other life forms, phytoplankton require the element phosphorus to carry out critical cellular activity, but in some parts of the world’s ocean, P is in limited supply. How do phytoplankton survive when phosphorus is difficult to find? Phytoplankton can alter...

How Does Red Tide Knock Out Its Competition?
2014-06-05 03:05:40

By Brett Israel, Georgia Institute of Technology New research reveals how the algae behind red tide thoroughly disables – but doesn't kill – other species of algae. The study shows how chemical signaling between algae can trigger big changes in the marine ecosystem. Marine algae fight other species of algae for nutrients and light, and, ultimately, survival. The algae that cause red tides, the algal blooms that color blue ocean waters red, carry an arsenal of molecules that disable...

Iron From Melting Ice Sheets Could Buffer Global Warming
2014-05-21 03:19:14

University of Bristol A newly-discovered source of oceanic bioavailable iron could have a major impact on our understanding of marine food chains and global warming. A UK team, including researchers from the University of Bristol, has found that summer meltwaters from ice sheets are rich in iron, which will have important implications on phytoplankton growth. Their findings are reported today in Nature Communications. It is well known that bioavailable iron boosts phytoplankton growth...

Native Algae Species Is To Blame For 'Rock Snot' Blooms In Rivers Worldwide
2014-05-08 03:00:48

[ Watch The Video: ‘Rock Snot’ Blooms Due To Native Algae ] Dartmouth College Recent growths not caused by human introductions or emergence of new genetic strain The recent blooms of the freshwater algae known as "rock snot" on river bottoms worldwide are caused by a native species responding to changing environmental conditions rather than by accidental introductions by fishermen or the emergence of a new genetic strain as widely believed, a Dartmouth College-led study...

Fish Living In Acidic Ocean Waters Less Able To Smell Predators
2014-04-14 14:14:56

[ Watch The Video: Fish From Acidic Ocean Waters Less Able To Smell Predators ] By Brett Israel, Georgia Institute of Technology Oddly behaving fish from a CO2 seep confirm laboratory experiments Fish living on coral reefs where carbon dioxide seeps from the ocean floor were less able to detect predator odor than fish from normal coral reefs, according to a new study. The study confirms laboratory experiments showing that the behavior of reef fish can be seriously affected...

2014-04-02 23:33:58

ForeverGreen Unveils New Product- SolarStrips will be available in over 160 countries Orem, Utah (PRWEB) April 02, 2014 ForeverGreen Worldwide Corporation (OTCBB:FVRG), a leading provider of nutritional foods and other healthy products, showcased its new product SolarStrips on March 28, 2014. SolarStrips, which are currently available, utilize patented strip technology and ingredients which helps provide the body with nutritious food to properly function. SolarStrips is a dissolvable...

Climate Change Slowing Down Deep Ocean Conveyor Belt
2014-03-24 08:42:04

Katherine Unger Baillie, University of Pennsylvania Far beneath the surface of the ocean, deep currents act as conveyer belts, channeling heat, carbon, oxygen and nutrients around the globe. A new study by the University of Pennsylvania’s Irina Marinov and Raffaele Bernardello and colleagues from McGill University has found that recent climate change may be acting to slow down one of these conveyer belts, with potentially serious consequences for the future of the planet’s climate....

emission and transport of dust and other important aerosols to the Southern Ocean on Dec. 30, 2006
2014-03-22 06:56:44

April Flowers for redOrbit.com - Your Universe Online In a region of the Southern Ocean, iron fertilization caused plankton to thrive during the last ice age, according to a new study from Princeton University and the Swiss Federal Institute of Technology in Zurich. The findings, published in Science, confirm a longstanding theory that wind-borne dust carried iron to this region of the Antarctic. This iron dust drove plankton growth and eventually led to the removal of carbon dioxide...

Plankton Make Scents For A Cooler Planet And Seabirds
2014-03-21 08:22:49

University of California, Davis The top predators of the Southern Ocean, far-ranging seabirds, are tied both to the health of the ocean ecosystem and to global climate regulation through a mutual relationship with phytoplankton, according to newly published work from the University of California, Davis. When phytoplankton are eaten by grazing crustaceans called krill, they release a chemical signal that calls in krill-eating birds. At the same time, this chemical signal — dimethyl...


Latest Biological oceanography Reference Libraries

Ocean Acidification
2013-04-01 10:32:20

Ocean acidification is the name that was given to the ongoing decrease in the pH of Earth’s oceans, a cause of the uptake of anthropogenic carbon dioxide from the atmosphere. About 30 to 40 percent of the carbon dioxide that is released by humans into the atmosphere dissolves into the lakes, oceans, and rivers. To maintain the chemical equilibrium, some of it reacts with the water to create carbonic acid. Some of these extra carbonic acid molecules react with a water molecule to provide a...

45_9dcdfc9da62991a8f200f2f82f8638d9
2014-01-12 00:00:00

A salp is a barrel-shaped, free-floating tunicate (any living organism which has a saclike body enclosed in a thick membrane or tunic with two openings or siphons for the ingress and egress of water). It moves by contracting which pumps water through its body. The salp strains the water with internal feeding filters as it goes through the body. It consumes phytoplankton that are strained from the water. Salps are common throughout equatorial, temperate, and colder seas. They are most often...

39_6e87e3fa1b5a996861bc65cc76c916fa
2007-04-03 00:34:20

The South American pilchard, Sardinops sagax, is a sardine of the Family Clupeidae, the only member of the genus Sardinops, found in the indo-Pacific oceans. Their length is up to 15.75 in (40 cm). It has a number of other common names: Australian pilchard, Blue pilchard, Blue-bait, Californian pilchard, Chilean sardine, Japanese pilchard, Pacific sardine, and Southern African pilchard. The South American pilchard is a coastal species that forms large schools. Coloration is blue green on...

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Word of the Day
Cthulhu
  • A gigantic fictional humanoid alien god being described with a head resembling an octopus and dragon wings and claws, around whom an insane cult developed.
  • Pertaining to the mythos of Cthulhu and additional otherworldly beings created by H. P. Lovecraft or inspired by his writings and imitators.
This word was invented in 1926 by H.P. Lovecraft for his short story, 'The Call of Cthulhu.' 'Cthulhu' may be based on the word 'chthonic,' which in Greek mythology refers to the underworld.
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