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Extreme environment changes fish appearance
10-12-2006 · EurekAlert!The world of the Devils Hole pupfish is a small place. The entire species lives in one rocky pool, 20 meters long and three meters wide, in a cave entrance in Death Valley, California. But their environment is not only cramped: it also has a profound effect on the fishes' appearance, raising questions about how rare species can be protected from extinction.
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- Extreme Environment Changes Fish Appearance
10-14-2006 · ScienceDaily
The world of the Devils Hole pupfish is a small place. The entire species lives in one rocky pool, 20 meters long and three meters wide, in a cave entrance in Death Valley, California. But their environment is not only cramped: it also has a profound effect on the fishes' appearance, raising questions about how rare species can be protected from extinction.
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- Fisheries should be regarded as a part of the maritime environment
12-20-2007 · EurekAlert!
Professional fishery is in many sea areas a serious ecological threat to the maritime environment. On the other hand, changes in the environment, e.g. the increase of fish-eating animals like seals and cormorants, may impact the fisheries. One of the new guiding principles of political decision-making in fishery issues is that a holistic "ecosystems approach" should be used instead of traditional protection of fish populations.
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Fluctuations in weather and the environment affect survival and reproduction of animals. But are all individuals within a population equally susceptible? Theory on the evolution in age-structured populations suggests not -- those life stages that are more important for overall fitness should be less susceptible to environmental variation than other life stages.
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Years of comparisons among the world's best atomic clocks -- based on different atoms -- have established the most precise limits ever achieved in the laboratory for detecting possible changes in so-called 'constants' of nature. The comparisons at NIST may help scientists test the latest theories in physics and develop a more complete understanding of the history of the universe.
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- Giant magnetocaloric materials could have large impact on the environment
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Materials that change temperature in magnetic fields could lead to new refrigeration technologies that reduce the use of greenhouse gases, thanks to new research at the US Department of Energy's Argonne National Laboratory and Ames National Laboratory.
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A new Institute of Physics' report, Climate change prediction: A robust or flawed process?, published today reveals that while there is general consensus on the underlying causes of the changes in our atmosphere, there is not unanimity.
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