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 and reproduce in ...
Evolution
Dec 19, 2011
100
0
A team of researchers from the Norwegian Institute for Nature Research and Rådgivende Biologer, has found that interbreeding between farmed salmon and wild salmon is changing the life cycle of the wild salmon. In their paper ...
Releasing captive-bred Atlantic salmon into the ocean, a long-standing practice to boost stocks for commercial fishing, reduces the rate at which wild populations reproduce and may ultimately do more harm than good, researchers ...
Plants & Animals
Oct 21, 2020
0
623
The inaugural harvest of genetically modified salmon began this week after the pandemic delayed the sale of the first such altered animal to be cleared for human consumption in the United States, company officials said.
Other
May 28, 2021
0
659
Piscine orthoreovirus (PRV) - which is associated with kidney and liver damage in Chinook salmon—is continually being transmitted between open-net salmon farms and wild juvenile Chinook salmon in British Columbia waters, ...
Ecology
May 26, 2021
0
486
The size of salmon returning to rivers in Alaska has declined dramatically over the past 60 years because they are spending fewer years at sea, according to a new study led by researchers at the University of California, ...
Ecology
Aug 19, 2020
0
1631
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 mounting evidence ...
Ecology
May 14, 2012
0
0
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 ...
Ecology
Nov 9, 2010
0
0
Behavior is one indicator of fish welfare. If we have a good understanding of how fish behave in their normal state, as well as in unusual environmental conditions, we can potentially detect events early on that might harm ...
Ecology
Jul 6, 2021
0
22
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 ...
Ecology
Apr 18, 2011
3
0
