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:


(Date:2/3/2016)... , Feb. 3, 2016 ... the addition of the "Emotion Detection ... Machine Learning, and Others), Software Tools (Facial ... Areas, End Users,and Regions - Global forecast ... --> http://www.researchandmarkets.com/research/d8zjcd/emotion_detection ) has ...
(Date:2/2/2016)... Feb. 2, 2016 Technology Enhancements Accelerate Growth of ... of the digital and computed radiography markets in ... and Indonesia (TIM). It provides ... size, as well as regional market drivers and restraints. ... market penetration and market attractiveness, both for digital and ...
(Date:2/1/2016)... , Feb. 1, 2016  Today, the first ... (AHA) announced plans to develop a first of its ... power of IBM Watson. In the first application of ... IBM (NYSE: IBM ), and Welltok will create ... health assessments with cognitive analytics, delivered on Welltok,s health ...
Breaking Biology News(10 mins):
(Date:2/10/2016)... Early-career researchers from Indonesia , ... Uganda and Yemen honored ... Indonesia , Nepal , ... are being honored for their accomplishments in nutrition, psychiatry, biotechnology, ... young women scientists who are pursuing careers in agriculture, biology and medicine ...
(Date:2/10/2016)...  IsoRay, Inc. (NYSE MKT: ISR), a medical technology ... applications for the treatment of prostate, brain, lung, head ... results for the second quarter and six months of ... --> --> Revenue was ... which ended December 31, 2015, a 12% increase compared ...
(Date:2/10/2016)... ... ... LATHAM, NEW YORK... Marktech Optoelectronics will feature their new high-speed InGaAs ... Moscone Center from February 16-18, 2016, and at the healthcare-focused BiOS Expo on February ... standard packages feature a TO-46 metal can with active areas of 1.0mm and 1.5mm ...
(Date:2/10/2016)... (PRWEB) , ... February 10, 2016 , ... Cenna Bioscience ... for the treatment of Alzheimer’s disease, announced today it has been selected to present ... at the Breakers in Palm Beach, Florida. The purpose of the Forum is ...
Breaking Biology Technology: