News tagged with otoliths
High carbon dioxide levels cause abnormally large fish ear bones
Rising carbon dioxide levels in the ocean have been shown to adversely affect shell-forming creatures and corals, and now a new study by researchers at Scripps Institution of Oceanography at UC San Diego has ...
Jun 25, 2009 |
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Search results for otoliths
Hatchery fish mask the decline of wild salmon populations
Scientists have found that only about ten percent of the fall-run Chinook salmon spawning in California's Mokelumne River are naturally produced wild salmon. A massive influx of hatchery-raised fish that return to spawn in ...
Feb 08, 2012 |
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Explosives and fish are traced with chemical tags
Researchers at the University of Oviedo (Spain) have come up with a way of tagging gunpowder which allows its illegal use to be detected even after it has been detonated. Based on the addition of isotopes, ...
Jan 12, 2012 |
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Ocean warming detrimental to inshore fish species
(PhysOrg.com) -- Australian scientists have reported the first known detrimental impact of southern hemisphere ocean warming on a fish species.
Apr 18, 2011 |
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The unexpected action of bisphenol A on the inner ear of certain vertebrates
Bisphenol A, whose impact on reproduction and development is the subject of numerous studies, induces anomalies in the inner ear of embryos of certain vertebrates. This new, completely unsuspected effect has ...
Mar 16, 2011 |
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Ear bones reveal spawning secrets of Lake Erie walleye
Ecologists have long believed that fish tend to return to the same river where they hatched in order to spawn. But researchers at Ohio State University have determined that the old rule doesn't always apply ...
Jul 29, 2010 |
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Robot submarine patrols Lake Michigan for climate-change study
Researchers at Purdue University are using a robotic submarine and other specialized tools in Lake Michigan to gather biological and environmental data showing how young fish vital to the ecosystem may cope ...
Jun 15, 2010 |
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Beyond sunlight: Explorers census 17,650 ocean species between edge of darkness and black abyss (w/ Video)
Census of Marine Life scientists have inventoried an astonishing abundance, diversity and distribution of deep sea species that have never known sunlight - creatures that somehow manage a living in a frigid ...
Nov 22, 2009 |
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Balance organs affect brain blood flow
The organs of the inner ear have a direct effect on brain blood flow, independent of blood pressure and CO2 levels in the blood. Researchers writing in the open access journal BMC Neuroscience used a series of human centrifu ...
Medicine & Health / Neuroscience
Sep 23, 2009 |
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Helping Albacore tuna come out of the can
(PhysOrg.com) -- Scientists are set to study the earbones and organs of more than 2000 albacore tuna to better understand the growth, age and breeding patterns of this increasingly important species.
Aug 11, 2009 |
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Douglas-fir, geoducks make strange bedfellows in studying climate change
Scientists are comparing annual growth rings of the Pacific Northwest's largest bivalve and its most iconic tree for clues to how living organisms may have responded to changes in climate.
Space & Earth / Earth Sciences
Jul 30, 2009 |
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List of search results for otoliths
