News tagged with salmon
Changes in net flow of ocean heat correlate with past climate anomalies
Physicists at the University of Rochester have combed through data from satellites and ocean buoys and found evidence that in the last 50 years, the net flow of heat into and out of the oceans has changed ...
Aug 14, 2009 |
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Evolution at warp speed: Hatcheries change salmon genetics after a single generation
The impact of hatcheries on salmon is so profound that in just one generation traits are selected that allow fish to survive and prosper in the hatchery environment, at the cost of their ability to thrive ...
Dec 19, 2011 |
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Is engineered 'Frankenfish' coming to the nation's table?
With a global population pressing against food supplies and vast areas of the ocean swept clean of fish, tiny AquaBounty Technologies Inc. of Waltham, Mass., says it can help feed the world.
Aug 18, 2010 |
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Study shows sea lice problem widespread
Salmon farms are transferring parasitic sea lice to wild salmon over a much wider region than first thought. That’s the conclusion of a newly published article called Evidence of farm-induced parasite infestations on ...
Nov 09, 2010 |
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Shark smell myth found fishy
Everyone knows that sharks have an amazing sense of smell. Toss a chunk of salmon into the shark tank at the Monterey Bay Aquarium in California, and you can see it in action.
Oct 13, 2010 |
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Wild salmon decline was not caused by sea lice from farm salmon: study
A new UC Davis study contradicts earlier reports that salmon farms were responsible for the 2002 population crash of wild pink salmon in the Broughton Archipelago of western Canada.
Dec 13, 2010 |
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U.S. hopes dams' demolition will let salmon return
They were known as June Hogs -- 100-pound salmon that, when stood on end, were taller than a man.
Apr 12, 2010 |
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Scientist says he found Japan fish thought extinct
A Japanese salmon species thought to be extinct for 70 years is alive and well in a lake near Mount Fuji, a science professor said Wednesday.
Dec 15, 2010 |
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New virus may pose risk to wild salmon
Farmed fish are an increasingly important food source, with a global harvest now at 110 million tons and growing at more than 8 percent a year. But epidemics of infectious disease threaten this vital industry, including one ...
Jul 09, 2010 |
5 / 5 (5) |
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Living, Meandering River Constructed
(PhysOrg.com) -- In a feat of reverse-engineering, Christian Braudrick of University of California at Berkeley and three coauthors have successfully built and maintained a scale model of a living meandering ...
Sep 29, 2009 |
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A tale of two cities
You would never confuse Seattle, Washington, with New York City. One is home to about 600,000 people, the other has a population of 8.2 million. One ardently protects the wild salmon thrashing through its ...
Nov 18, 2010 |
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Global study of salmon shows: 'Sustainable' food isn't so sustainable
Popular thinking about how to improve food systems for the better often misses the point, according to the results of a three-year global study of salmon production systems. Rather than pushing for organic or land-based ...
Nov 24, 2009 |
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Environmental scandal in Chile
Until recently, the disastrous scale of the threat posed by salmon farms to the fauna and National Park of the Aysen region of southern Chile was entirely unknown. The unexpected discovery was made by researchers ...
Jun 22, 2010 |
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Canada's lost salmon found
Sockeye salmon, which mysteriously vanished last year prompting a government inquiry, are expected to return to Canada's Fraser River this month in numbers not seen since 1913, officials said Wednesday.
Aug 25, 2010 |
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Climate threatens trout and salmon
Trout and salmon are among the world's most familiar freshwater fishes, but numbers have fallen over recent decades - in some areas, dramatically.
May 17, 2010 |
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Salmon
Salmon is the common name for several species of fish of the family Salmonidae. Several other fish in the family are called trout; the difference is often attributed to the migratory life of the salmon as compared to the residential behaviour of trout, a distinction that holds true for the Salmo genus. Salmon live in both the Atlantic (one migratory species Salmo salar) and Pacific Oceans, as well as the Great Lakes (approximately a dozen species of the genus Oncorhynchus).
Typically, salmon are anadromous: they are born in fresh water, migrate to the ocean, then return to fresh water to reproduce. However, there are rare species that can only survive in fresh water habitats. Folklore has it that the fish return to the exact spot where they were born to spawn; tracking studies have shown this to be true but the nature of how this memory works has long been debated.
For more information about Salmon, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
