News tagged with wild salmon
Related topics: salmon
Finding an alternative to feeding fish fish
Scientists at the University are developing a new plant-based product that could replace fishmeal, reducing the need for farmers to feed fish to other fish at a time when more than 90% of EU waters are at ...
May 15, 2012 |
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Growing risks from hatchery fish
A newly published collection of more than 20 studies by leading university scientists and government fishery researchers in Alaska, British Columbia, Washington, Oregon, California, Russia and Japan provides ...
May 14, 2012 |
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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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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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Lice from farmed salmon imperil wild salmon, new study confirms
(PhysOrg.com) -- A new study on the impacts of lice on wild salmon published today by an independent team of academic researchers in the Proceedings of the National Academy of Sciences (PNAS) confirmed what many previous ...
Aug 22, 2011 |
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First study into GM Atlantic salmon mating reveals danger of escape to wild gene pool
If genetically modified Atlantic salmon were to escape from captivity they could succeed in breeding and passing their genes into the wild, Canadian researchers have found. Their research, published in Evolutionary Applications, explor ...
Jul 13, 2011 |
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Judge won't guard fish farm from Grand Coulee flow
(AP) -- A federal judge on Friday refused to order a cut in flows from the Grand Coulee Dam that threaten millions of fish raised in pens downstream in the Columbia River.
May 28, 2011 |
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Pacific salmon may be dying from leukemia-type virus
In Canada's Fraser River, a mysterious illness has killed millions of Pacific salmon, and scientists have a new hypothesis about why: The wild salmon are suffering from viral infections similar to those linked to some forms ...
Apr 18, 2011 |
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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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Scientists worry North Pacific salmon may run out of food
With the number of salmon in the North Pacific having doubled in the past 50 years, scientists are increasingly concerned there may not be enough food to support them, and changing ocean conditions could make it even worse.
Nov 28, 2010 |
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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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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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Averting the perfect storm for wild salmon
We hear so much about missing wild salmon and recently a record run. But Simon Fraser University scientists say a population explosion of hatchery and wild salmon in the North Pacific Ocean is leading hatchery fish to beat ...
Oct 04, 2010 |
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Fish or frankenfish? FDA weighs altered salmon (Update)
(AP) -- Fish or frankenfish? A Massachusetts company wants to market a genetically engineered version of Atlantic salmon, and regulators are weighing the request. If approval is given, it would be the first ...
Sep 20, 2010 |
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