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:2/13/2017)... , Feb. 13, 2017 Former 9/11 Commission ... Judiciary Committee, Janice Kephart of Identity Strategy ... Donald Trump,s "Executive Order: Protecting the Nation ... 27, 2017):  "As President Trump,s ,Travel Ban, ... has now essentially banned the travel ban, it is ...
(Date:2/9/2017)... Feb. 9, 2017 The biomass boiler market ... the biomass boiler market globally in terms of revenue ... boilers. The market for biomass boilers has been segmented ... application, and country/region. The market based on feedstock type, ... residues, biogas & energy crops, urban residues, and others. ...
(Date:2/8/2017)... (NASDAQ: AWRE ), a leading supplier of biometrics ... and year ended December 31, 2016. Revenue ... to $6.9 million in the same quarter last year. Operating ... compared to $2.6 million in the fourth quarter of 2015. ... million, or $0.02 per diluted share, which compares to $1.8 ...
Breaking Biology News(10 mins):
(Date:3/20/2017)... ... March 20, 2017 , ... SSCI and Whitehouse Laboratories, divisions of ... 2017 ! Sponsored by the Parenteral Drug Association (PDA), the New York Interphex ... industry professionals in attendance and more than 625 exhibitors, the educational and networking opportunities ...
(Date:3/20/2017)... ... March 20, 2017 , ... Avexegen ... today announced that it has entered into an exclusive global license agreement with ... disease including Necrotizing Enterocolitis (rare orphan disease) as well as Crohn’s Disease and ...
(Date:3/20/2017)... ... ... The fourth annual Hackaday Prize , which aims to expand the ... lives, launches today. Sponsored by Digi-Key and Microchip , the competition ... prizes to engineers, inventors and tinkerers who “build something that matters.” , The first ...
(Date:3/20/2017)... PUYALLUP, Wash. , March 20, 2017 ... leading provider of ethical review of clinical research, announced ... Review Solution TM (SRS) for NIH-funded multi-site ... among its 2,300 institution clients, WIRB has an extensive ... upon our trusted status as the IRB of record ...
Breaking Biology Technology: