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 ...
Farm salmon pose clear reproductive threat to wild gene pools
Farmed salmon show full reproductive potential to invade wild gene pools and should be sterilised - according to new research from the University of East Anglia (UEA).
Alaska mine could be blocked to save salmon fisheries
US environmental authorities made a rare move Friday to block a massive copper and gold mine in Alaska before it even gets under way, in a bid to protect wild salmon.
Genetic chip will help salmon farmers breed better fish
Atlantic salmon production could be boosted by a new technology that will help select the best fish for breeding.
Link confirmed between salmon migration, magnetic field
A team of scientists last year presented evidence of a correlation between the migration patterns of ocean salmon and the Earth's magnetic field, suggesting it may help explain how the fish can navigate across ...
Study of salmon sperm success shows need for speed
(Phys.org) —When salmon spawn, males competing to fertilise eggs will win or lose based primarily on their sperm swimming speed, according to a collaborative study by researchers from the University of ...
Research shows how females choose the 'right' sperm
University of East Anglia scientists have revealed how females select the 'right' sperm to fertilize their eggs when faced with the risk of being fertilized by wrong sperm from a different species.
Rapid re-colonization of river after extreme flood event
(Phys.org)—After being virtually wiped out during a flood in 2005 in Wolf Point Creek, Alaska, salmon, meiofauna and most macroinvertebrates all re-colonized within two years, according to research published by University ...
Wash. state scientists using drones to spy on nature
LA PUSH, Clallam County, Wash. - model airplane. As the propeller started to whirl, Morgan cocked his arm and flung the plane as if he were throwing a spear.
Salmon runs boom, go bust over centuries
Salmon runs are notoriously variable: strong one year, and weak the next. New research shows that the same may be true from one century to the next.
Wake up and smell the reef: Fish larvae sniff their way back home
How tiny fish larvae travel away from the reef, then know how to navigate their way back home is a scientific mystery.
Aquatic playground can turn water tanks into fish schools
Raising fish in tanks that contain hiding places and other obstacles can make the fish both smarter and improve their chances of survival when they are released into the wild, according to an international ...
Study says salmon may use magnetic field as navigational aid
The mystery of how salmon navigate across thousands of miles of open ocean to locate their river of origin before journeying upstream to spawn has intrigued biologists for decades, and now a new study may ...
Large numbers of salmon are killed by parasites, finds new study
(Phys.org)—An "unexpectedly large" number of free-ranging salmon are being killed by parasitic lice in European waters every year, according to the results of a major international study.