News tagged with food chains
Genome provides new weapon against sea lice
An international team of researchers has now sequenced nearly the entire genetic material of the sea louse. On 1 March the Institute of Marine Research gave the world open access to this research source, which ...
May 29, 2012 |
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Sea lions fuel ocean life
Like whales, sea lions are contributing to marine ecosystems in the most fundamental way possible, research by a Flinders graduate has found.
May 15, 2012 |
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Marine food chain becomes clearer with new revelations about prey distribution
A new study has found that each step of the marine food chain is clearly controlled by the trophic level below it – and the driving factor influencing that relationship is not the abundance of prey, but ...
May 02, 2012 |
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Scientists discover animal-like urea cycle in tiny diatoms in the ocean
Scientists have discovered that marine diatoms, tiny phytoplankton abundant in the sea, have an animal-like urea cycle, and that this cycle enables the diatoms to efficiently use carbon and nitrogen from their ...
May 11, 2011 |
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Harvesting of small fish species should be cut: study
(PhysOrg.com) -- New research on the fishing of small fish species near the bottom of their food chains suggests harvesting at levels previously thought to be sustainable could have devastating effects on ...
Jul 22, 2011 |
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Study confirms oil from Deepwater Horizon disaster entered food chain in the Gulf of Mexico
Since the explosion on the BP Deepwater Horizon drilling rig in the Gulf of Mexico on April 20, 2010, scientists have been working to understand the impact that this disaster has had on the environment. For ...
Mar 20, 2012 |
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Scientists find 'Lucky Luke' of the seas
Could you filter 100,000 cubic metres of syrup every day to find food in a concentration of two grains of rice per cubic metre?
Sep 03, 2009 |
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Study documents widespread extinction of lizard populations due to climate change
A major survey of lizard populations worldwide has found an alarming pattern of population extinctions attributable to rising temperatures. If current trends continue, 20 percent of all lizard species could ...
May 13, 2010 |
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Chemical-munching mussels contaminating Great Lakes
Zebra mussels from the Caspian Sea, introduced to North America by accident, are becoming a veritable plague releasing toxic chemicals into the Great Lakes, Canadian biologists say.
Oct 01, 2011 |
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How to avoid a global food crisis
The world faces a major challenge in the coming decades as global food demand is poised for unprecedented growth.
May 16, 2012 |
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Killer whales migrate, study finds, but why?
Some killer whales, a study published Wednesday shows for the first time, wander nearly 10,000 kilometres (6,200 miles) from Antarctica's Southern Ocean into tropical waters -- but not to feed or breed.
Oct 25, 2011 |
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Diatom biosensor could shine light on future nanomaterials
(PhysOrg.com) -- A glow coming from the glassy shell of microscopic marine algae called diatoms could someday help us detect chemicals and other substances in water samples. And the fact that this diatom can ...
Mar 23, 2012 |
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500 million-year-old super predator had remarkable vision
South Australian Museum and University of Adelaide scientists working on fossils from Kangaroo Island, South Australia, have found eyes belonging to a giant 500 million-year-old marine predator that sat at ...
Other Sciences / Archaeology & Fossils
Dec 07, 2011 |
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A Zen discovery: Unrusted iron in ocean
Iron dust, the gold of the oceans and rarest nutrient for most marine life, can be washed down by rivers or blown out to sea or - a surprising new study finds - float up from the sea floor. The discovery, ...
Space & Earth / Earth Sciences
Feb 08, 2009 |
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Oceans' increasing acidity likely to hurt biodiversity, researchers say
(PhysOrg.com) -- Stanford researchers have gotten a glimpse into an uncertain future where increasing levels of carbon dioxide in the Earth's atmosphere will lead to higher levels in the ocean as well, leaving ...
Sep 13, 2011 |
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