Navigation Links
Escapee farmed salmon infiltrate fitter wild populations

There is growing concern about the threats that farmed Atlantic salmon escapees constitute to wild salmon populations.

Consumers and environmentalists are concerned about farmed salmon yet heritable changes that have accumulated in farmed strains at the genetic level are largely unknown.

In new research published in the journal Molecular Ecology, researchers have found scientific evidence that farmed salmon have evolved genetically differently to wild salmon, therefore backing claims that any integration of farmed salmon back into the wild through escapees could have a negative impact on the health of wild salmon populations.

Christian Roberge and Louis Bernatchez, two of the co-authors on this research paper explain: "Using a 3,557 genes microarray and a unique set-up in which farmed and wild salmon of the corresponding natural population were grown in identical conditions, we document for the first time genome-wide changes in transcription profiles that evolved in parallel between farmed strains from North America and Europe within five to seven generations."

"The magnitude of the accumulated differences was of approximately 20% for 1.5% of the expressed genes in juvenile salmon. These findings provide support to the claim that hybridisation with farmed escapees may alter the gene pool of wild salmon, reduce its fitness and accelerate its decline."


'"/>

Source:Blackwell Publishing Ltd.


Page: 1

Related biology news :

1. Researchers reveal the infectious impact of salmon farms on wild salmon
2. Alaskan puzzles, monitoring provide insight about North Pacific salmon runs
3. To sea or not to sea: When it comes to salmon sex, size sometimes doesnt matter
4. Divergent life history shapes gene expression in brains of salmon
5. Leave it to salmon to leave no stone unturned
6. Special chip provides better picture of salmon health
7. Farmed salmon could become an invasive species in forest streams
8. New report: Explosive growth changes salmon industry
9. Measuring the impact of post-genomics on Mediterranean populations
10. A new study examines how shared pathogens affect host populations
11. New discovery: Molecular variation in one gene affects the growth of natural populations
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Escapee farmed salmon infiltrate fitter wild populations

(Date:9/29/2014)... A new study confirms that the exposure to tar ... than of regular cigarettes. Similarly, exposure to nicotine ... increasingly popular type of cigarette in several countries around ... of certain toxic chemicals in the smoke of these ... because lower levels of chemicals in the smoke are ...
(Date:9/29/2014)... NASA story from 2009, "human activities in this area of ... Palm oil is increasingly grown for use as a cooking ... foods. It has become the most widely produced edible oil ... to surpass that of soybean oil. , The environmental effects ... cleared to grow the crop, and the preferred method is ...
(Date:9/29/2014)... team says recently identified radiation detection properties of a ... for homeland security and medical advances. , In a ... of Optics Letters , UT Arlington Physics Professor ... to fabricate transparent nanoscintillators by heating nanoparticles composed of ... formed. A scintillator refers to a material that ...
Breaking Biology News(10 mins):Slim cigarette smokers not exposed to more harmful chemicals 2UT Arlington researchers develop new transparent nanoscintillators for radiation detection 2UT Arlington researchers develop new transparent nanoscintillators for radiation detection 3
... the Science of Food and Agriculture shows that konjac ... strains of E. coli and Salmonella bacteria. The study ... Research Centre, the Netherlands, shows that these foodstuffs act as ... themselves to the fibrous foods instead of the gut cells ...
... an ice-free region of Antarctica have discovered the last ... insects--on the interior of the southernmost continent before temperatures ... An abrupt and dramatic climate cooling of 8 degrees ... roughly 14 million years ago, forced the extinction of ...
... (August 5, 2008) A study published online today in ... two eggs for breakfast, as part of a reduced-calorie diet, ... than those who eat a bagel breakfast of equal calories. ... Journal of the American College of Nutrition , which ...
Cached Biology News:Antarctic fossils paint a picture of a much warmer continent 2Antarctic fossils paint a picture of a much warmer continent 3Antarctic fossils paint a picture of a much warmer continent 4Antarctic fossils paint a picture of a much warmer continent 5Adults who eat eggs for breakfast lose 65 percent more weight 2Adults who eat eggs for breakfast lose 65 percent more weight 3
(Date:9/30/2014)... a bio-mimicking analog of one of nature,s most ... research team led by Alejandro Briseno of the ... step in developing long-sought polymer architecture to boost ... in electronic devices. , Briseno, with colleagues ... at Stanford University and Dresden University of Technology, ...
(Date:9/30/2014)... 2014 Shimadzu Scientific Instruments has ... and highly precise tool for measuring displacement in ... With 1000-mm maximum movement distance, the DSES-1000 can ... gauge length of 10 mm. In addition, it ... 50-mm stroke and within +/- 100 µm below ...
(Date:9/30/2014)... Proove Biosciences , the commercial and research leader ... genetic test built upon research from their published P.A.I.N. ... provide physicians with an objective way to understand theirs ... between individuals. With this new test, physicians will be ... predisposition that will affect their pain tolerance. , The ...
(Date:9/30/2014)... CORD:USE Cord Blood Bank – www.corduse.com ... entered into an Equity and Exclusive Services Agreement with ... of patented technologies for the isolation of human cord ... is performing Phase I/II clinical trials in ... using Tianhe,s Stem Cell Educator Therapy showing that the ...
Breaking Biology Technology:Blades of grass inspire advance in organic solar cells 2Blades of grass inspire advance in organic solar cells 3Shimadzu’s New Long-Travel Extensometer Increases Precision for Soft Material Testing 2Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 2Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 3CORD:USE is Pleased to Announce it has Partnered with Tianhe Stem Cell Biotechnologies, Developer of Cord Blood Stem Cell Therapy Showing Promising Results in Clinical Trials for the Treatment of Diabetes and Autoimmune Diseases 2CORD:USE is Pleased to Announce it has Partnered with Tianhe Stem Cell Biotechnologies, Developer of Cord Blood Stem Cell Therapy Showing Promising Results in Clinical Trials for the Treatment of Diabetes and Autoimmune Diseases 3CORD:USE is Pleased to Announce it has Partnered with Tianhe Stem Cell Biotechnologies, Developer of Cord Blood Stem Cell Therapy Showing Promising Results in Clinical Trials for the Treatment of Diabetes and Autoimmune Diseases 4
... CSA Medical, Inc. ( www.CSAmedical.com ... technology and business plans for its proprietary spray ... Medical will be one of only eleven companies ... companies in total will present across three categories. ...
... health care startups reported $572 million in total investments ... 2010, according to the BioEnterprise Midwest ... year, while the total dollar ... of companies financed remains the same.   ...
... SAN DIEGO, Oct. 28 Orexigen® Therapeutics, Inc. (Nasdaq: ... of obesity, will announce financial results for the third quarter ... markets close. The announcement will be followed by a live ... Orexigen management will host the call and webcast ...
Cached Biology Technology:CSA Medical Selected to Present at Mid-Atlantic Bio Conference 2Midwest Health Care Startups Raise $572 Million Through Q3 2010 2Midwest Health Care Startups Raise $572 Million Through Q3 2010 3
Experion spin filters are used to filter the gel matrix and gel stain solution prior to use with the Experion automated electrophoresis system. Supplied as 10 spin filters....
The model 55D Rocking Shaker provides the same Reliable quality as the 55S, but double the value. The 55D gives you an additional platform with a height of 3.25 in....
... The membrane filters suitable for use in ... on top of each filter, in a specially ... ,The special pleating of the band of membrane ... when dispensed. The shape of the sealed band ...
... [RS17 ] to PRKAR2 cAMP is ... of cellular functions. cAMP exerts its effects ... which transduces the signal through phosphorylation of ... AMPK is a tetramer composed of two ...
Biology Products: