News tagged with salmon
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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Route parasite takes to infect fish uncovered
(PhysOrg.com) -- Scientists in Aberdeen have made a discovery which could ultimately help to develop a control for a major cause of infection in farmed fish.
Jan 25, 2012 |
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White fish from the North Sea is equally climate friendly as farmed fish
The environmental impact of plaice and cod caught wild in the North Sea is similar to that of imported farmed fish like salmon, tilapia and pangasius. This was the conclusion arrived at by LEI, part of Wageningen ...
Jan 23, 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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Jumping fish to save the salmon industry millions of dollars: new study
(PhysOrg.com) -- Scientists have shown for the first time that salmon can be artificially stimulated to leap through water, opening the door to effective sea lice treatment, an infection that costs the global industry more ...
Dec 05, 2011 |
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Salmon genome in final phases of completion
The International Cooperation to Sequence the Atlantic Salmon Genome (ICSASG, the "Cooperation") has awarded the Phase II contract for next-generation sequencing and analysis of the Atlantic salmon genome to the J. Craig ...
Nov 23, 2011 |
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Environmental conditions and predators affect Atlantic salmon survival in the Gulf of Maine
Stocks of Atlantic salmon (Salmo salar), which have been steadily declining for the past few decades, are facing new challenges in the Gulf of Maine, where changing spring wind patterns, warming sea surface temperatures and ...
Nov 17, 2011 |
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Protecting predator and prey when both are in trouble
When both a predator and its prey are conservationally at risk, it can be difficult to find the right balance of ecosystem management to sustain and protect both.
Nov 09, 2011 |
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Fish flu: genetics approach may lead to treatment
(PhysOrg.com) -- A research team at the National Institute of Standards and Technology (NIST) has provided the first look at a genetic structure that may play a critical role in the reproduction of the infectious ...
Nov 09, 2011 |
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Awareness and labeling initiatives can benefit inland fisheries
Sustainable seafood initiatives, including certification and ecolabeling and awareness schemes, could be extended to more effectively cover inland, freshwater fisheries, according to researchers writing in the November issue ...
Nov 04, 2011 |
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Glaciers make way for new stream habitat in Alaska
(PhysOrg.com) -- Researchers from the University of Birmingham and other UK universities describe the evolution and assembly of a stream ecosystem in South East Alaska in new de-glaciated terrain, from early insect and crustacean ...
Oct 18, 2011 |
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Lethal Atlantic Virus found in Pacific Salmon
The highly contagious marine influenza virus, Infectious Salmon Anaemia (ISA) has for the first time been officially reported after being found in the Pacific on B.C.’s central coast.
Oct 17, 2011 |
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Mapping immune genes in salmon
Morten F. Lukacs' doctoral research at The Norwegian School of Veterinary Science has identified and mapped a group of immune genes that are the key to warding off infectious agents such as viruses and bacteria ...
Oct 03, 2011 |
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Salmon and other fish predators rely on 'no guts, no glory' survival tactic
The phrase "no guts, no glory" doesn't just apply to athletes who are striving to excel.
Sep 15, 2011 |
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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.
